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CFC Fixturing - Sustainability Through Efficiency

Tue, 12 May 2026 19:53:32 GMT

CFC-Fixturing - Sustainability Through Efficiency

At �� t, we are proud that �� featured our article ��- �� - �� in the actual May 2026 Edition.

The �� -�� can be found here:

https://indd.adobe.com/view/fbed6d32-5068-44c6-a2c1-1c2864ba1a88?startpage=17

Inter alia, the Question will be answered whether CFC-Fixtures are sustainable? And, much more..

The �� is just here:

https://www.heattreattoday.com/may-2026/

The print version of Heat Treat Today will be sent out soon. Or, it can be ordered at Heat Treat Today.

Let me know if you have any feedback or questions.

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The photo above shows an actual CFC-Rack for SEW-Eurodrive made by High Temperature Concept.

At High Temperature Concept, we’re excited about how CFC-Fixtures can revolutionize your heat treatment operations across. If you’re looking to improve product quality, increase furnace net load, or extend fixture life cycle times, exploring CFC technology could be the next big step for your shop.

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We delivered some new CFC-Racks

Tue, 05 May 2026 17:43:12 GMT

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Last week, �� -��. Please take a peek.

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1. The CFC-Fixtures ��’�� . The forms will remain stable, and they are a reliable place to hold parts like gears or pinions for the best results in the heat treatment process.

2. CFC-Fixtures are �� . They don’t carburize, etc.

3. The CFC materials have a �� .��.��. ��, which means that they don’t change their dimensions in the heat, including the quenching, which is oil quenching in this application.

4. The �� are much lower than for steel fixtures.

5. �� of the handling of the parts and of the Rack components is ��.

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https://www.high-temperature-concept.com/10-powerful-advantages-of-cfc-fixtures-you-need-to-know

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𝙃𝙞𝙜𝙝 𝙏𝙚𝙢𝙥𝙚𝙧𝙖𝙩𝙪𝙧𝙚 𝘾𝙤𝙣𝙘𝙚𝙥𝙩 𝙬𝙚𝙡𝙘𝙤𝙢𝙚𝙨 𝘿𝙧. 𝙑𝙤𝙡𝙠𝙚𝙧 𝙆𝙖𝙚𝙨𝙚

Thu, 16 Apr 2026 16:51:57 GMT

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Volker has made significant contributions in the �� and among.

Inter alia, he led at �� the Innovation Management and at �� the Global Zentrallabor, the final instance for test and release of CAD and materials for passenger vehicles.

More details you can find on LinkedIn: linkedin.com/in/volkerkaese

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Could you imagine using no Fixture for your Heat Treatment Process?

Thu, 12 Mar 2026 14:48:39 GMT

We work on it. Using less fixture material and volume is the best way to heat treat your products best

For sure the best way to heat treat you products like gears, shafts, pinions, heat exchangers or other metal parts is to place them in the furnace chamber like this:

✅ use the full furnace space

✅ place the products evenly in that space

✅ hold the products reliable in their positions

✅ ensure that all needed parts of the products are evenly heated up and cooled down

✅ ensure that the gases, when chemical reactions are needed, evenly reach the product surfaces .

So, now we need to talk about the Fixture . Because I am sure that you agree, that without any fixture, the products couldn't positioned and hold reliable during the process.

CFC heat treatment fixtures now are the non plus ultra solution to ensure:

✅ positioning and holding your products reliable in every step

✅ with the least (negative) possible impact on your product quality.

Ensuring uniform heat treatmnet results with as little as possible distortion is the target.

Advanced CFC Fixtures designed by High Temperature Concept are the Solution

1. CFC has a much lower Density than any other Metal Fixtures

CFC has a density of around 1.5 g/cm3. For steels or Inconel or ODS alloys we talk about desnities between 7 and 8.1 g/cm3.

2. Higher Yield Strength of CFC especially at high temperatures

The yield strength at higher tempertures decreases for any metal. For CFC the strength increases to higher tempertures typically.

3. Low to zero thermal expansion

The so-called C.T.E. or Coefficient of thermal expansion for CFC is around zero. That means compared to steel fixtures that your fixture dimensions don't change. For heat resistanr steel we usually talk about values of 18 x 10-6 1/K which corresponds with a length increase of 1.8 % or 18 mm on 1,000 mm, which is a lot.

4. No carburising, nitriding effects and more

Steel fixtures warp or get weak and deform under load at temperatures at 800 °C or higher. CFC does not. As well metals carburise etc. in corburicing atmospheres, CFC does not. CFC is only carbon, so it is inert. Note: If you fear carburizing of your workload in the direct contact with CFC Fixtures we know how avoid this effect which starts usually at temperatures above 950 °C, depending on the atmosphere, impurities, steel alloys, and other contact conditions.

The next photo shows another modular CFC Fixture in the top view. For illustration purposes the surroundings are red colored, the bottom is not, although it is still an open design. It is obvious that there is very little material compared to any steel fixtures.

The main effects are:

✅ Fixture weight: 5 to 12 times lighter

✅ Fixture volume up to 75 % less

✅ Fixture net load: up to 2 times more

✅ Product distortion: up to 90% less

And up to six other further advantages you can implement with CFC Fixtures.

Take the Next Step

If you are ready to improve reliability, increase throughput, and protect your most valuable components, now is the time to act.

Contact us today for your free estimate and discover how CFC heat treatment fixtures can transform your process performance.

CFC Heat Treatment Fixtures: Enhancing Precision and Efficiency in Industrial Processes

Thu, 26 Feb 2026 09:55:57 GMT

CFC Heat Treatment Fixtures: Enhancing Precision and Efficiency in Industrial Processes

In modern manufacturing and metallurgical industries, achieving consistent quality and efficiency during heat treatment processes is not optional — it is critical. Every cycle, every component, and every degree matters.

CFC heat treatment fixtures are not just tools — they are strategic assets that ensure precision, improve productivity, and protect valuable components during high-temperature operations.

For engineers, technicians, and manufacturers, these fixtures play a pivotal role in maintaining process accuracy, reducing failures, and increasing operational reliability. When performance, repeatability, and long-term durability are priorities, CFC fixtures become an essential part of the equation.

Secure, reliable, and high-quality heat treatment with advanced CFC fixtures.

Why Are CFC Heat Treatment Fixtures Essential?

1. Ensuring Uniform Heat Distribution

One of the primary challenges in heat treatment is achieving consistent temperature across all components. Even minor inconsistencies can lead to distortion, residual stress, or material defects.

CFC heat treatment fixtures are designed to hold parts in precise positions, ensuring even heat transfer and minimizing product distortion. Properly supported parts ensure high-quality outcomes and reduce the risk of defects caused by uneven heating.

When every part sits exactly where it should, your results become predictable, repeatable, and reliable.

2. Improving Component Safety and Integrity

During high-temperature processes, components can warp, sag, or shift if not properly supported. Conventional steel fixtures — although optimized by generations of engineers — face the same limitations as all metals:

They can warp, sag, shift, creep, or even crack under extreme furnace conditions.

As metals approach their melting point, their usable strength decreases significantly. A cast steel base grid, for example, may show severe deformation after approximately 800 hours of service in a chamber heat treatment furnace — leading to reduced accuracy and potential scrap.

Material comparison data provided by Dr. Johannes Schröder (former Plansee employee) demonstrates that while ODS (Oxide Dispersion Strengthened) superalloys reach the highest usable temperatures among metals, C/C or CFC (Carbon Fiber Reinforced Carbon) stands apart . Compare with the Diagram below.

CFC materials can withstand temperatures above 1,400 °C and up to 2,000 °C or more , maintaining acceptable — and in some cases even increasing — usable strength in heat treatment environments .

This means greater dimensional stability, longer service life, and reduced risk of failure.

Fixtures should provide a stable, secure platform that prevents damage and maintains the geometric integrity of parts. By using CFC heat treatment fixtures, manufacturers can avoid costly rework, scrap, and downtime — ultimately saving money while preserving product quality.

Is your current fixture system truly supporting your quality goals — or limiting them?

3. Enhancing Process Efficiency

Efficient production depends on repeatable and reliable setups. CFC heat treatment fixtures streamline workflow by standardizing part placement, reducing manual adjustments, and enabling faster load and unload cycles.

Thanks to their very low C.T.E. (Coefficient of Thermal Expansion), only CFC grids and racks allow reliable automated handling and transportation of workpiece carriers in heat treatment systems.

In fully integrated automated systems — such as those provided by High Temperature Concept — high-end CFC racks operate seamlessly within loading stations and transport systems.

For high-volume operations, this efficiency translates directly into:

Increased throughput
Reduced cycle time
Lower labor intensity
Higher profitability

When your fixtures move efficiently, your entire production line benefits.

4. Reducing Operational Failures

Human error remains one of the most common risks in manual component handling. Incorrect placement can lead to inconsistent results, distortion, and unnecessary waste.

CFC fixtures minimize this risk by providing precise guides and stable supports, ensuring that every part is correctly positioned before the heat treatment cycle begins.

Whether manually loading heat exchangers for vacuum brazing processes — such as operations performed for Modine Europe — or utilizing fully automated systems, fixture accuracy ensures consistent and predictable outcomes.

Consistency leads to reliability. Reliability builds trust — both internally and with your customers.

5. Supporting Complex and Custom Components

Modern manufacturing increasingly involves complex geometries and custom-designed parts that are difficult to secure during high-temperature processes.

CFC fixtures can be engineered to match unique designs, providing tailored support and precise alignment — particularly crucial in automotive, tooling, and aerospace industries where precision and quality standards are uncompromising.

Custom CFC racks, such as those designed for Rolls-Royce and used in HIP processes for titanium aircraft engine blades, demonstrate how advanced fixture solutions support even the most intricate components.

This flexibility ensures that highly complex parts are treated accurately without compromising shape, strength, or performance.

If your components are evolving — your fixtures should evolve with them.

Enhance Precision and Efficiency with CFC Fixtures, Grids, and Racks

CFC heat treatment fixtures are more than simple supports — they are a critical element of quality assurance, operational efficiency, and long-term process reliability.

By investing in high-quality CFC fixtures, manufacturers ensure:

Uniform heat distribution
Improved component integrity
Reduced scrap and downtime
Optimized productivity
Greater automation compatibility

Whether for aerospace, automotive, tooling, energy, or other industrial applications, these fixtures empower engineers and technicians to achieve precision, minimize errors, and deliver consistent results.

In today’s competitive manufacturing landscape, leveraging CFC technology is not just an upgrade — it is a strategic advantage.

They protect your components.
They enhance efficiency.
They reduce operational risk.
They strengthen your reputation for quality.

Proper fixtures are not an expense — they are an investment in long-term success.

Take the Next Step

If you are ready to improve reliability, increase throughput, and protect your most valuable components, now is the time to act.

Contact us today for your free estimate and discover how CFC heat treatment fixtures can transform your process performance.

Fixtures for Aerospace Applications manufactured in the USA

Thu, 05 Feb 2026 16:51:03 GMT

What do you see? An impressive aircraft engine, right?

High Temperature Concept designs and delivers custom made, best-in-class CFC Fixtures and Racks for heat treatment, manufactured in the USA.

But what does the picture have to do with it?

We designed a customized CFC Rack for Titanium turbine blades some years ago for a high-end HIP (Hot Isostatic Pressing) process for Rolls-Royce . So, there is the connection to the aircraft engine.

Below you see the CFC Fixture for that vacuum process . The entire process is confidential, so we can't provide more details.

In general, CFC is extremely lightweight and strong at high temperatures. Additionally, there is no shrinkage or aging, and the dimensions and forms remain precisely the same over years due to a very low C.T.E value (coefficient of thermal expansion).

Feel free to reach out or explore more at High Temperature Concept to learn how we can help you implement the best-in-class CFC Fixture and Rack solutions for Sintering, Vacuum and Inert Gas Heat Treatment, HIP processes, and CVD Coating Processes, and more.

Ask us for your tailored CFC Fixture & Rack Quotation today.

Best-in-class heat treatment Fixtures manufactured in the USA

Fri, 09 Jan 2026 20:59:36 GMT

CFC Fixtures, Racks, Grids, Trays, Baskets, and other custom-made parts for Sintering, Brazing, Coating, HIP, and other processes from the heat treatment fixture designer and manufacturer in the USA.

High Temperature Concept always strives to provide the best for our customers.

Above you see an image provided by MP Materials. In the background, you see one of our modular CFC Racks in a vacuum chamber furnace for sintering of rare earth materials .

We have all you need to succeed: The CFC Fixture and heat treatment competence at High Temperature Concept for over 30 years (it resulted in a successful market launch of a new generation of fixtures and my PhD thesis), and the material design and manufacturing competence at Americarb Inc. Together, we are a CFC Fixture and Rack Manufacturer in the USA with a high vertical integration and short lead times with competitive prices.

Below you see some monolithic CFC fixtures for a vacuum hardening process, including High Pressure Gas Quenching for gears . The whole process is fully automated: from soft machining to the internal heat treatment shop, and finally to hard machining.

Another reference shows a CFC Rack with a specific profile for HIP processes of titanium turbine blades in the Aerospace industry (Rolls-Royce) .

Finally, you see a CFC Rack in a cylindrical form for a CVD coating process at the TTC company in Spain , designed and delivered during my time at the Fraunhofer Society.

Ask us for your tailored CFC Fixture & Rack Quotation today.

New CFC Racks meet the highest customer requirements

Thu, 04 Dec 2025 17:31:32 GMT

New CFC Racks and Fixtures in heat treatment with high quality CFC Grids and Posts stand out. Do you know why?

These racks are not only lightweight but also don't change form or dimensions over time, so they last longer than many (any?) others.

Some other Racks and Fixtures have been running successfully for over 10 years. Have you ever seen any steel rack that does so? The Rack shown above is brand new.

One unique selling point is our CFC posts, which are used instead of graphite or steel.

Only well-designed CFC Racks with CFC posts and related parts enable the highest process capabilities and reliable automated handling in the heat treatment industry for years, if not decades.

This saves a lot of time and money and makes the US sides competitive , like the one above.

There are other benefits, such as energy savings and improved part quality . Ask us for details. We are here to help.

And, the best thing, do you know what the customer said ?

"Jorg has been a great partner to work with. His team is knowledgeable and responsive. Design phase was very easy due to his understanding of the materials and processes. Quality of product and lead time both exceeded expectations on all orders to date."

Feel free to reach out or explore more at High Temperature Concept to learn how we can help you implement the best-in-class CFC Fixture and Rack solutions like Vacuum Sintering Fixtures, Vacuum Brazing Fixtures, or Vacuum heat treatment Fixtures, and more.

Ask us for your tailored CFC Fixture Quotation today.

𝗛𝗶𝗴𝗵 𝗧𝗲𝗺𝗽𝗲𝗿𝗮𝘁𝘂𝗿𝗲 𝗖𝗼𝗻𝗰𝗲𝗽𝘁 𝗶𝘀 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝗶𝗻𝗴 𝗿𝗲𝘀𝘂𝗹𝘁𝘀 𝗳𝗼𝗿 𝘁𝗵𝗲 𝗡𝗼𝗿𝘁𝗵 𝗔𝗺𝗲𝗿𝗶𝗰𝗮𝗻 𝗛𝗲𝗮𝘁 𝗧𝗿𝗲𝗮𝘁𝗺𝗲𝗻𝘁 𝗶𝗻𝗱𝘂𝘀𝘁𝗿𝘆

Fri, 14 Nov 2025 18:14:50 GMT

CFC Vacuum Furnace Fixtures, Vacuum Furnace Racks, or just CFC Grids in modular and monolithic designs for precise, efficient heat treatment.

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✅ in German Engineering Quality

✅ CFC made & Fixtures manufactured in the USA

✅ with 30 years of experience

✅ in short lead times

✅ for attractive prices.

Thank you as well to our cooperation partner, Americarb, and the team.

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Feel free to reach out or explore more at High Temperature Concept to learn how we can help you implement the best-in-class CFC Fixture and Rack solutions for Vacuum and Inert Gas Heat Treatment, Sintering, and CVD Coating Processes, and more.

Ask us for your tailored CFC Fixture Quotation today.

See you in Detroit at the Heat Treat Exhibition on Booth 921 on Oct. 21-23 2025

Fri, 17 Oct 2025 17:37:40 GMT

See you in Detroit at the Heat Treat 2025 on the Americarb Booth 921 from Oct. 21-23.

High Temperature Concept designs and delivers best-in-class CFC-Fixtures and Racks for your heat treatment process. We are cooperating with Americarb.

ASK FOR CFC-FIXTURES in:

✅ German Engineering Quality

✅ CFC Made in the USA by Americarb

✅ 30 years of experience by myself

✅ short lead times

✅ attractive prices

Ask Juan Carlos Contreras Campuzano for your free HTC estimate.

Sincerely,

Dr. Jorg Demmel

See you in Detroit at the Heat Treat Exhibition on Booth 1833 on Oct. 17-19 2023

Wed, 17 Sep 2025 16:46:26 GMT

See you in Detroit at the Heat Treat Exhibition on Booth 1833 on Oct. 17-19 2023

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Boost your heat treatment with new CFC-Fixtures and save the most

Wed, 17 Sep 2025 15:01:06 GMT

Unique CFC Fixtures and Racking Systems for precise, efficient heat treatment

The photos above show the great MP Material team in Texas, including Tedd Cruz, the US Senator from Texas.

The second photo shows Tedd Cruz with two managers in front of some heat treatment vacuum furnaces. Behind them, in the furnace chamber, you can see a modular CFC-Fixture designed and delivered by High Temperature Concept . This is just one out of many CFC-Racks and Fixtures we provide with our best-in-class approach: in German Engineering Quality, manufactured at Americarb in the USA.

What's in it for you?

Ask us for your tailored CFC Fixture Quotation today.

Video of the 10th powerful Advantage “CFC-Fixtures help to reduce hard machining” by High Temperature Concept

Tue, 22 Jul 2025 17:50:58 GMT

Today I, Dr. Jorg Demmel, like to introduce the Advantage Number �� of CFC Fixtures in a video world premiere . In total there are 10 Advantages I like to share with you.

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Please see for yourself by watching the video, which provides unique insights in the world of CFC-Fixtures and Racks and handling automation.

CFC is a unique material with properties never reached.

The Coefficient of thermal expansion, short C.T.E. value, is around zero . CFC doesn’t change dimensions and form in technical vacuum or inert gas atmospheres.

Even extreme thermal shocks don't change or weak Carbon Fiber Reinforced Carbon (CFC) . If you are using technical oil quenching media or High Pressure Cooling technology, CFC Fixtures are the best choice.

Furthermore, CFC is not creeping at high temperatures under load and not aging caused e.g. by carburizing furnace atmospheres. Vacuum and inert gases are CFCs’ best friends.

Additionally, CFC increases its strength to higher temperatures to a maximum at around 2,200 ^o C or 3,992 ^o F. Do you know any other material with this quality?

Therefore, the products stay accurate at the same place in their CFC-Rack or Fixture.

At High Temperature Concept, we’re excited about how CFC-Fixtures can revolutionize heat treatment operations across industries. If you’re looking to save energy, improve product quality, and reduce cycle times , exploring CFC technology could be the next big step for your shop.

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1️⃣ Fixture weight reduction: 5 to 12 times lighter

2️⃣ Fixture energy savings: 5 times less

3️⃣ Fixture net load: up to 2 times more

4️⃣ Process cycle time: up to 30 % less

5️⃣ Fixture life cycle: around 5 times longer

6️⃣ Fixture rework: up to 90 % less

7️⃣ Product distortion: up to 90 % less

8️⃣ Further product quality: higher

9️⃣ Manual part handling: could be automated

�� Hard machining: could be reduced (this video)

What's in it for you?

Ask us for your tailored CFC Fixture Quotation today.

All previously published videos under the News section will be as well republished in the next days in this Blog Section .

Video of the 9th powerful Advantage “CFC-Fixtures make automated part handling possible” by High Temperature Concept

Thu, 12 Jun 2025 15:27:48 GMT

Today I, Dr. Jorg Demmel, like to introduce the Advantage Number 9 of CFC Fixtures in a video world premiere . In total there are 10 Advantages I like to share with you.

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Please see for yourself by watching the video, which provides unique insights in the world of CFC-Fixtures and Racks and handling automation.

CFC is a unique material with properties never reached.

The Coefficient of thermal expansion, short C.T.E. value, is around zero. CFC doesn’t change dimensions and form in technical vacuum and inert gas atmospheres.

Even extreme thermal shocks don't weak Carbon Fiber Reinforced Carbon (CFC). If you are using technical oil quenching media or High Pressure Cooling technology, CFC Fixtures are the best choice.

If you have any concerns, e.g. about oil ab- or desorption due to some open porosity of CFC, let's talk - we have after 30 years of experience for many challenges an effective and efficient solution.

Furthermore, CFC is not creeping at high temperatures under load and not aging caused e.g. by carburizing furnace atmospheres. Vacuum and inert gases are CFCs best friends.

CFC is first Fixture material I know which allows easy and reliable automatic handling in heat treatment processes. Up to fully integrated material flow solutions between soft and hard machining.

At High Temperature Concept, we’re excited about how CFC-Fixtures can revolutionize heat treatment operations across industries. If you’re looking to save energy, improve product quality, and reduce cycle times , exploring CFC technology could be the next big step for your shop.

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1️⃣ Fixture weight reduction: 5 to 12 times lighter

2️⃣ Fixture energy savings: 5 times less

3️⃣ Fixture net load: up to 2 times more

4️⃣ Process cycle time: up to 30 % less

5️⃣ Fixture life cycle: around 5 times longer

6️⃣ Fixture rework: up to 90 % less

7️⃣ Product distortion: up to 90 % less

8️⃣ Further product quality: higher

9️⃣ Manual part handling: could be automated (this post)

�� Hard machining: could be reduced

Feel free to reach out or explore more at High Temperature Concept to learn how we can help you implement these cutting-edge solutions.

The initial photo shows a robot application for Lemken, Germany we realized with partners at the Fraunhofer institute in 2001, some CFC was used as well, but, not CFC Racks needed. Other applications I am not allowed to publish.

10 Powerful Advantages of CFC Fixtures You Need to Know

Wed, 04 Jun 2025 21:25:21 GMT

At High Temperature Concept, we’re always striving for most effective and efficient CFC Fixtures and Racks for our customers.

There are above all two main preconditions why we can suggest this.

First, our founder Jorg Demmel is one of the Pioneers of CFC Fixtures and the only one with a PhD in this field. Furthermore, he and his team developed between 1995 and 2002 in Stuttgart a new generation of Fixtures: A new Technology by German engineers reshaping how parts are handled and treated in high temperature environments .

Second, he decided partnering in the field of CFC Workpiece Carriers with Americarb, an US based CFC developer and manufacturer. Driven by the clear idea: Serving American heat treaters best with custom designed CFC Fixtures manufactured in the USA .

The result: best-in-class CFC Fixtures and Racks with best Performance, Quality and Prize.

Today Dr. Jorg Demmel likes to introduce the 10 Advantages of CFC Fixtures . His knowledge arose over now three decades serving for the industry leaders like Mercedes, Bosch, Rolls Royce or MP Materials, just mentioning a few.

We recently came across an insightful presentation by Dr. Jorg Demmel explaining the remarkable benefits of CFC fixtures, and we’re excited to share these insights with you. Whether you’re in aerospace, automotive, or any industry reliant on heat treatment, understanding these advantages can save you time, energy, and money.

Table of Contents

1. What Are CFC Fixtures?

2. The 10 Advantages of CFC Fixtures

3. How CFC Fixtures Improve Product Quality

4. Energy Efficiency and Cost Savings with CFC Fixtures

5. Why Choose CFC Fixtures for Your Heat Treatment Shop?

6. Frequently Asked Questions About CFC Fixtures

What Are CFC Fixtures?

Before diving into the benefits, let's briefly clarify what CFC fixtures are. These are specialized racks and fixtures designed for high-temperature heat treatment processes. Unlike traditional steel baskets, CFC fixtures are engineered to be lightweight, modular, and extremely durable — tailored to improve workflow and reduce operational costs.

The 10 Advantages of CFC Fixtures

Dr. Jorg Demmel highlighted the ten core benefits of using CFC fixtures in heat treatment applications. Here’s a closer look:

1. Five to 12 Times Lighter

CFC fixtures drastically reduce the weight burden on your equipment and operators. Whether modular or monolithic, they are significantly lighter than conventional steel racks — making manual handling easier and opening the door to potential automation.

2. Uses Five Times Less Energy

Because of their lightweight design and their increased strength at higher temperatures, CFC fixtures require far less energy during the heat treatment process. This translates to a major reduction in your facility’s energy consumption and costs.

3. Up to Two Times More Net Load Capacity

You can load more parts per cycle thanks to the efficient design smaller volume and strength of CFC fixtures. This boosts your throughput without compromising safety or quality.

4. Up to 30% Less Processed Cycle Time

Speed matters. CFC fixtures help shorten heat treatment cycles by improving heat transfer efficiency and minimizing downtime — allowing you to process more parts in less time.

5. Five Times Longer Life Cycle

Durability is a key factor. These fixtures outlast traditional baskets, meaning fewer replacements, less downtime, and long-term savings.

6. Up to 90% Less Rework

Thanks to superior design and material quality, parts handled in CFC fixtures require far less rework, reducing waste and improving overall productivity.

7. Up to 90% Less Product Distortion

One of the biggest headaches in heat treatment is part distortion. CFC fixtures minimize this risk, ensuring your parts come out closer to their intended specifications.

8. Automation Friendly

With manual handling minimized, CFC fixtures integrate seamlessly with automated systems, boosting consistency and safety. Reason why: CFC doesn’t change dimensions and form in technical vacuum and inert gas atmospheres.

9. Reduced Hard Machining

Since the parts suffer less distortion and damage, hard machining steps after heat treatment can be significantly reduced.

10. Enhanced Quality Control

CFC fixtures contribute to a more consistent and higher product quality, meeting the stringent demands of industries like aerospace and automotive. The scatter of the measured values for CHD, structure, hardness, etc. in one batch is by experience lower than in conventional steel fixtures.

How CFC Fixtures Improve Product Quality

When quality counts, the stability and precision of your fixtures are critical. CFC fixtures offer consistent support and spacing for parts during heat treatment, which drastically reduces distortion and defects. This means fewer rejected parts and higher satisfaction from your customers.

Energy Efficiency and Cost Savings with CFC Fixtures

Energy consumption is one of the highest costs in heat treatment operations. Thanks to their lightweight and thermally efficient design, CFC fixtures help reduce energy use by up to 80% compared to traditional fixtures. This efficiency, combined with longer fixture lifespan, means substantial savings for your shop year after year.

Why Choose CFC Fixtures for Your Heat Treatment Shop?

At High Temperature Concept, we believe in investing in technologies that deliver real-world benefits. CFC fixtures don’t just promise improved performance — they deliver measurable advantages, including:

Lower operational costs
Improved throughput
Better product quality
Reduced environmental impact

Switching to CFC fixtures is an investment that pays off quickly and keeps giving back over the long haul.

Frequently Asked Questions About CFC Fixtures

What materials are CFC fixtures made from?

CFC fixtures are crafted from high-quality Carbon Fiber Reinforced Carbon designed to withstand extreme temperatures and mechanical stresses, ensuring durability and reliability.

Can CFC fixtures be customized for different parts?

Absolutely! Their modular design allows easy customization to fit a wide variety of parts and applications, making them versatile for any heat treatment shop.

How much energy can I expect to save?

Typically, energy consumption drops by up to 80%, largely due to the reduced mass and improved heat transfer properties of the fixtures.

Are CFC fixtures compatible with automation?

Yes, their lightweight and standardized design makes them ideal for integration with automated handling systems. CFC is a unique material with a C.T.E. value around zero. The first material I know which allows easy and reliable automatic handling in heat treatment processes. Up to fully integrated material flow solutions between soft and hard machining.

How do CFC fixtures reduce product distortion?

By providing stable and uniform support during heat treatment, they minimize thermal stresses that cause part deformation.

By providing stable and uniform support during heat treatment, they minimize thermal stresses that cause part deformation. The main secret is a design with reduces the fixture volume to a minimum and gives the products optimal chemical, thermal and mechanical conditions during heat treatment.

At High Temperature Concept, we’re excited about how CFC fixtures can revolutionize heat treatment operations across industries. If you’re looking to save energy, improve product quality, and reduce cycle times, exploring CFC technology could be the next big step for your shop.

Feel free to reach out or explore more at High Temperature Concept to learn how we can help you implement these cutting-edge solutions.

Maximize Precision and Productivity with CFC Vacuum Furnace Racks

183:767800430 (Joerg Demmel) — Tue, 13 May 2025 10:10:58 GMT

Born from the demands of space exploration, Carbon Fiber Carbon (CFC) has found a powerful second life in the world of industrial heat treatment. This advanced material—capable of withstanding temperatures beyond 2,000°C—has become a game-changer for companies seeking to improve precision, reduce cycle times, and dramatically extend the lifespan of their fixtures.

Today, Vacuum Furnace Fixtures and Vacuum Furnace Racks made from CFC are setting new standards in performance. Whether in aerospace, automotive, or tooling industries, businesses are replacing outdated steel systems with custom CFC solutions that deliver unmatched efficiency and throughput. It’s not just an upgrade—it’s a transformation in how we approach high-temperature processing.

Table of Contents

What Makes CFC Fixtures Game-Changing?
Benefits of Our Custom Vacuum Furnace Racks
Real-World Applications and Success Stories
Boost Your Furnace Throughput—Up to 100%!
FAQs About CFC Vacuum Furnace Fixtures

What Makes CFC Fixtures Game-Changing?

Let’s start with a powerful idea: what if the material that once survived re-entry from Earth’s orbit could now extend your furnace fixture's life and double your throughput?

CFC—Carbon Fiber Reinforced Carbon—originated in aerospace. Its strength under extreme conditions makes it the ideal material for Vacuum Furnace Fixtures . Why? Because unlike steel or other alloys, CFC maintains its form and structural integrity even at temperatures above 2000°C.

Thanks to its low thermal mass and chemical inertness, you benefit from:

Reduced cycle times
Minimal contamination risks
Consistent heat distribution
Lighter fixture weight
Energy efficiency

These aren't just upgrades; they’re transformational improvements.

Benefits of Our Custom Vacuum Furnace Racks

Not all racks are made equal—and we don’t do them off-the-shelf. At High Temperature Concept, every Vacuum Furnace Rack is custom-engineered to meet the exacting demands of your tools and components.

Here’s what you get:

Feature

Precision CFC tray and rack design
Lightweight structure
Oil quenching compatibility
Long service life
Cleanroom-ready surfaces

Benefit

Exact fit for complex geometries
Easier handling and faster heating/cooling
Suitable for harsh treatment environments
Reduced downtime and replacement costs
Ideal for aerospace and medical components

You don’t just get a fixture—you get peace of mind, throughput, and repeatable performance.

Real-World Applications and Success Stories

After more than 30 years in the user industry, we've helped many heat treatment shops across the U.S. and Europe optimize their furnace performance.

Take, for example, a leading tool manufacturer that switched to our custom Vacuum Furnace Racks for annealing and oil-quenching applications. Their results?

Cycle time reduced by 35%
Rack lifespan increased by 400%
Furnace Throughput increased by 70%
Fewer part deformations

As a result, they scaled up production and saved thousands annually.

This is the kind of transformation we’re proud to deliver with true German Engineering Quality, proudly Made in the USA.

Boost Your Furnace Throughput—Up to 100%!

We like to say, “Don’t be satisfied with less.” And with our CFC-based Vacuum Furnace Fixtures, you really don’t have to be.

In fact, many clients report a throughput increase of up to 100%, simply by upgrading their fixture system. How?

CFC allows different designs with smaller space because of it’s outstanding material properties at the highest temperatures
Reduced preheating and cooling time
Higher component density per load
Minimal distortion = fewer rejected parts
Durable enough to run longer without replacements

This isn’t wishful thinking—it’s CFC reality, proven by clients, and supported by continuous innovation.

Watch our full product video and real-life demonstrations here:

Watch the Film

FAQs About CFC Vacuum Furnace Fixtures

Q1: Why choose CFC over steel or molybdenum for vacuum furnace applications?

A: CFC withstands higher temperatures, has lower thermal mass, and offers significantly longer service life compared to traditional metals. This makes it more energy-efficient and cost-effective in the long term.

Q2: Can you customize racks for complex geometries or processes like oil quenching?

A: Absolutely. Our Vacuum Furnace Racks are designed in collaboration with your team to fit specific parts, processes, and thermal profiles—including oil quenching.

Q3: How do CFC fixtures improve furnace throughput?

A: They heat and cool faster, reduce energy usage, and allow much tighter load arrangements because of its outstanding mechanical and thermal properties at highest temperatures —resulting in throughput increases of up to 100%.

Q4: Are your fixtures suitable for aerospace or medical parts?

A: Yes. Our CFC racks are compatible with cleanroom standards, making them ideal for critical applications with no contamination risks.

Q5: What support do you provide post-purchase?

A: Because of the chemical inertness of CFC and our tested designs, usually there’s no rework and therefore no support needed. If there’s anything we can help with, ask our team. From design consulting to maintenance tips—we are ensuring your CFC solution continues to perform for years.

Don’t Be Satisfied with Less

At High Temperature Concept, we believe in better. Better materials. Better engineering. Better outcomes for your shop floor. Our Vacuum Furnace Fixtures and Vacuum Furnace Racks are more than just components—they're a gateway to greater efficiency, quality, and ROI.

So whether you're running a high-speed automotive line, a critical aerospace process, or a precision tool workshop, we invite you to take the next step.

Get your custom quote today Request Quote

Let’s bring excellence and a high profitability into your everyday operations.

+1 941 299 9191

info@High-Temperature-Concept.com

www.high-temperature-concept.com

Video of the 8th powerful Advantage "With CFC-Fixtures product quality can be increased significantly compared with steel fixtures" by High Temperature Concept

Thu, 01 May 2025 17:51:19 GMT

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The photo above shows a levelling process of drive shafts after case hardening at Durotec, Germany from 2001. CFC level grids with their high dimensional stability reduced scattering of the straightness of the shafts.

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1️⃣ Fixture weight reduction: 5 to 12 times lighter

2️⃣ Fixture energy savings: 5 times less

3️⃣ Fixture net load: up to 2 times more

4️⃣ Process cycle time: up to 30 % less

5️⃣ Fixture life cycle: around 5 times longer

6️⃣ Fixture rework: up to 90 % less

7️⃣ Product distortion: up to 90 % less

8️⃣ Further product quality: higher (this video)

9️⃣ Manual part handling: could be automated

�� Hard machining: could be reduced

What's in it for you?

Ask us for your tailored CFC Fixture Quotation today.

This video was first published on May 1st in the former News section on this website, and republished on July 16th in this Blog section. All previously published videos under the News section will be as well republished in the next days in this Blog Section .

Video of the 7th powerful Advantage “With CFC-Fixtures up to 90 % less product distortion than with steel fixtures” by High Temperature Concept

Thu, 24 Apr 2025 12:44:38 GMT

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The photo above shows a CFC-Rack entering the Furnace. The heat treatment process is an Annealing process for Allen keys including oil quenching for Wiha, Germany. The CFC-Trays are designed in near net shape technology. The CFC-Racks are running successfully now since more than 25 years.

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1️⃣ Fixture weight reduction: 5 to 12 times lighter

2️⃣ Fixture energy savings: 5 times less

3️⃣ Fixture net load: up to 2 times more

4️⃣ Process cycle time: up to 30 % less

5️⃣ Fixture life cycle: around 5 times longer

6️⃣ Fixture rework: up to 90 % less

7️⃣ Product distortion: up to 90 % less (this video)

8️⃣ Further product quality: higher

9️⃣ Manual part handling: could be automated

�� Hard machining: could be reduced

What's in it for you?

Ask us for your tailored CFC Fixture Quotation today.

This video was first published on April 24th in the former News section on this website, and republished on July 9th in this Blog section. All previously published videos under the News section will be as well republished in the next days in this Blog Section .

Video of the 6th powerful Advantage “CFC-Fixtures need up to 90 % less rework than steel fixtures” by High Temperature Concept

Thu, 17 Apr 2025 12:49:41 GMT

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The photo above shows a detail of a casted steel grid for heat treatment with cracks after operation. CFC Fixtures show no corrosion like carburizing when used in a vacuum or in inert gas atmosphere, n o creeping under load, a high dimensional accuracy and shape stability. Just the opposite compared to steel fixtures.

�� -�� :

1️⃣ Fixture weight reduction: 5 to 12 times lighter

2️⃣ Fixture energy savings: 5 times less

3️⃣ Fixture net load: up to 2 times more

4️⃣ Process cycle time: up to 30 % less

5️⃣ Fixture life cycle: around 5 times longer

6️⃣ Fixture rework: up to 90 % less (this video)

7️⃣ Product distortion: up to 90 % less

8️⃣ Further product quality: higher

9️⃣ Manual part handling: could be automated

�� Hard machining: could be reduced

What's in it for you?

Ask us for your tailored CFC Fixture Quotation today.

This video was first published on April 17th in the former News section on this website, and republished on July 9th in this Blog section. All previously published videos under the News section will be as well republished in the next days in this Blog Section .

Video of the 5th powerful Advantage “CFC-Fixtures reach up to 5 times longer life cycles compared to steel fixtures” by High Temperature Concept

Thu, 10 Apr 2025 21:21:45 GMT

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The photo above shows a detail of a CFC-Rack for a vacuum brazing process of heat exchangers we designed for Modine Europe. Running for many, many years with great success.

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1️⃣ Fixture weight reduction: 5 to 12 times lighter

2️⃣ Fixture energy savings: 5 times less

3️⃣ Fixture net load: up to 2 times more

4️⃣ Process cycle time: up to 30 % less

5️⃣ Fixture life cycle: around 5 times longer (this video)

6️⃣ Fixture rework: up to 90 % less

7️⃣ Product distortion: up to 90 % less

8️⃣ Further product quality: higher

9️⃣ Manual part handling: could be automated

�� Hard machining: could be reduced

What's in it for you?

Ask us for your tailored CFC Fixture Quotation today.

This video was first published on April 10th in the former News section on this website, and republished on July 9th in this Blog section. All previously published videos under the News section will be as well republished in the next days in this Blog Section .

Video of the 4th powerful Advantage “CFC-Fixtures can reduce the process cycle times up to 30 % compared to steel fixtures” by High Temperature Concept

Thu, 03 Apr 2025 19:17:27 GMT

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1️⃣ Fixture weight reduction: 5 to 12 times lighter

2️⃣ Fixture energy savings: 5 times less

3️⃣ Fixture net load: up to 2 times more

4️⃣ Process cycle time: up to 30 % less (this video)

5️⃣ Fixture life cycle: around 5 times longer

6️⃣ Fixture rework: up to 90 % less

7️⃣ Product distortion: up to 90 % less

8️⃣ Further product quality: higher

9️⃣ Manual part handling: could be automated

�� Hard machining: could be reduced

What's in it for you?

Ask us for your tailored CFC Fixture Quotation today.

This video was first published on April 3rd in the former News section on this website, and republished on July 1st in this Blog section. All previously published videos under the News section will be as well republished in the next days in this Blog Section .

Video of the 3rd powerful Advantage “CFC-Fixtures can carry up to 100 % more net load than steel fixtures” by High Temperature Concept

Thu, 27 Mar 2025 16:14:11 GMT

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1️⃣ Fixture weight reduction: 5 to 12 times lighter

2️⃣ Fixture energy savings: 5 times less

3️⃣ Fixture net load: up to 2 times more (this video)

4️⃣ Process cycle time: up to 30 % less

5️⃣ Fixture life cycle: around 5 times longer

6️⃣ Fixture rework: up to 90 % less

7️⃣ Product distortion: up to 90 % less

8️⃣ Further product quality: higher

9️⃣ Manual part handling: could be automated

�� Hard machining: could be reduced

What's in it for you?

Ask us for your tailored CFC Fixture Quotation today.

This video was first published on March 27th in the former News section on this website, and republished on July 1st in this Blog section. All previously published videos under the News section will be as well republished in the next days in this Blog Section .

Video of the 2nd powerful advantage: “CFC-Fixtures consume 5 times less energy than steel fixtures” by High Temperature Concept.

Thu, 20 Mar 2025 16:00:00 GMT

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1️⃣ Fixture weight reduction: 5 to 12 times lighter

2️⃣ Fixture energy savings: 5 times less (this video)

3️⃣ Fixture net load: up to 2 times more

4️⃣ Process cycle time: up to 30 % less

5️⃣ Fixture life cycle: around 5 times longer

6️⃣ Fixture rework: up to 90 % less

7️⃣ Product distortion: up to 90 % less

8️⃣ Further product quality: higher

9️⃣ Manual part handling: could be automated

�� Hard machining: could be reduced

What's in it for you?

Ask us for your tailored CFC Fixture Quotation today.

This video was first published on March 20th in the former News section on this website, and republished on June 26th in this Blog section. All previously published videos under the News section will be as well republished in the next days in this Blog Section .

Video of the 1st powerful Advantage “CFC-Fixtures are 5 to 10 times lighter than steel fixtures” by High Temperature Concept

Thu, 13 Mar 2025 10:00:04 GMT

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1️⃣ Fixture weight reduction: 5 to 12 times lighter (this video)

2️⃣ Fixture energy savings: 5 times less

3️⃣ Fixture net load: up to 2 times more

4️⃣ Process cycle time: up to 30 % less

5️⃣ Fixture life cycle: around 5 times longer

6️⃣ Fixture rework: up to 90 % less

7️⃣ Product distortion: up to 90 % less

8️⃣ Further product quality: higher

9️⃣ Manual part handling: could be automated

�� Hard machining: could be reduced

What's in it for you?

Ask us for your tailored CFC Fixture Quotation today.

This video was first published on March 13th in the News section on this website, which has now been transformed into the Blog section. Therefore, all previously published videos under the News section will be republished in the next few days in this Blog Section .

𝗩𝗶𝗱𝗲𝗼 𝗼𝗳 𝘁𝗵𝗲 𝟭𝟬 𝗽𝗼𝘄𝗲𝗿𝗳𝘂𝗹 𝗔𝗱𝘃𝗮𝗻𝘁𝗮𝗴𝗲𝘀 𝗼𝗳 𝗖𝗙𝗖-𝗙𝗶𝘅𝘁𝘂𝗿𝗲𝘀 𝗮𝗻𝗱 𝗥𝗮𝗰𝗸𝘀 𝗯𝘆 𝗛𝗶𝗴𝗵 𝗧𝗲𝗺𝗽𝗲𝗿𝗮𝘁𝘂𝗿𝗲 𝗖𝗼𝗻𝗰𝗲𝗽𝘁

Fri, 07 Mar 2025 16:45:44 GMT

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1️⃣ Fixture weight reduction: 5 to 12 times lighter

2️⃣ Fixture energy savings: 5 times less

3️⃣ Fixture net load: up to 2 times more

4️⃣ Process cycle time: up to 30 % less

5️⃣ Fixture life cycle: around 5 times longer

6️⃣ Fixture rework: up to 90 % less

7️⃣ Product distortion: up to 90 % less

8️⃣ Further product quality: higher

9️⃣ Manual part handling: could be automated

�� Hard machining: could be reduced

What's in it for you?

Ask us for your tailored CFC Fixture Quotation today.

This video was first published on March 7th in the News section on this website, which has now been transformed into the Blog section. Therefore, all previously published videos under the News section will be republished in the next few days in this Blog Section .

CFC Fixture Advantages and Challenges in Vacuum Heat Treatment, Part 2

Mon, 13 Mar 2023 20:04:41 GMT

This article in Heat Treat Today is about CFC Fixtures as a great opportunity for Heat Treaters. Part 2.

“What are the factors that lead to carburization and carbon transmission? How can heat treaters avoid these unwanted reactions? The November 2022 print magazine featured Part 1 of this technical evaluation of CFC fixtures in vacuum heat treatment.

In Part 2, discover the challenges of CFC fixtures and the steps heat treaters can take to mitigate these challenges.”

Mar. 13th 2023, Dr. Jorg Demmel,

Founder & President of High Temperature Concept

The complete article from myself you find here:

https://indd.adobe.com/view/f4dfecad-812c-43ec-84b5-f28d571133c1?startpage=15

Thanks to HEAT TREAT TODAY !

Interested in more? Ask us for your Fixtures demand. We promise prompt and competent Quotations.

CFC Fixture Advantages and Challenges in Vacuum Heat Treatment, Part 1

Mon, 14 Nov 2022 19:49:20 GMT

This article in Heat Treat Today is about CFC Fixtures as a great opportunity for Heat Treaters. Part 1.

“What happens when a lead engineer sticks his head in new advancements in materials from NASA? For the author of this article, it means the successful research and development of a new generation of workpiece carriers and fixtures made from “a high-tech ceramic matrix composite of very strong carbon fiber,” that is, CFC. ”

The Original HEAT TREAT TODAY Article from myself you find here:

https://indd.adobe.com/view/d134310e-9b2b-44ff-88c9-a7fb4edb4664?startpage=19

The HEAT TREAT TODAY Nov. VACUUM HEAT TREAT issue here:

https://indd.adobe.com/view/d134310e-9b2b-44ff-88c9-a7fb4edb4664

Interested in more? Ask us for your Fixtures demand. We promise prompt and competent Quotations.

Two opportunities seeing you in Louisville on the Furnaces North America

Fri, 22 May 2020 19:59:24 GMT

At least two opportunities seeing you in Louisville on the Furnaces North America

The FNA 2020 Technical Conference Committee under the lead of Mr. Tom Morrison , the CEO of MTI Management and the FNA Producer, is excited to announce, that the presentation “ Why CFC-Fixtures are a Must for Modern Heat Treaters“ submitted for consideration, has been accepted as one of the technical sessions to be presented at Furnaces North American 2020 in Louisville, Kentucky this October.

See you in Louisville on Booth #120 and in my presentation.

The presentation you find here as a download:

https://www.high-temperature-concept.com/Publications

Feel free to reach out or explore more at High Temperature Concept to learn how we can help you implement these cutting-edge solutions.

How to increase the Furnace load up to +100 %

Wed, 23 Oct 2019 18:50:56 GMT

Successful CFC Fixture Applications

How to increase the Furnace load up to +100 %

“Finding the needle in the haystack”

The design of a new CFC Fixture is the most crucial requirement for the success of a new Fixture Application in terms of quality and efficiency.

Figure 1 shows the 3 design levels and their advantages. Level III is most difficult to achieve, but has the highest economic benefits.

Figure 1: Three CFC Fixture or Rack Design levels by High Temperature Concept

Please note that Carbon Fiber reinforced Carbon or CFC is still an outstanding, unreached material . Some details see Newsletter #1. The main 3 material properties which make this material so outstanding and recommend it as a Fixture Material are (CFC Sigrabond Performance ^® compared to heat resistant cast austenitic steel like ASTM A297-HK at 20 and 1,000 ^o C):

1. L ow density of about 1.5 compared to 7.8 to 7.5 g/cm ³

2. Low C. T. E. of about -0.5 to 0.8 compared to 11 to 18 x 10 ^-6 K ^-1

3. Extremely high specific strength of about 200 to 233 compared to 65 to 11 N / m g

But, why is it still a great challenge for technicians and engineers designing ingenious Fixtures for commercial or captive heat treaters? An attempt at explanation is that there are some contradictory requirements for material developers and designers on the one hand, and users in industry in the rough heat treatment area and its surroundings on the other hand.

Unlike many competitors, we worked for many years in the user industry in responsible positions and/or went to many customers with heat treatment workshops. Many Fixture designs were successfully realized for our customers, mainly in the Industries of Tooling, Automotive, Electronics, or Aerospace.

The key to success or “the needle in the haystack” is the just mention combination of knowledge and experiences. Mainly with the aim reducing work piece distortion most effective, in some cases with the result of reduced hard machining.

Another unique feature is that the President and founder of High Temperature Concept ^TM Dr. Jorg Demmel wrote his doctoral thesis just on this field over “Scientific aspects of the development of new workpiece carriers for high temperature processes made of fiber composite ceramics CFC and other high temperature materials”.

The consequence is, that of course our aim is to be best-in-class , means, compared to Figure 1 , our approach is design level III. Or, in other words, our Fixture design pays off most! Compare Figure 2 .

Figure 2: Design levels and competitors by High Temperature Concept

As proof of the written passages above, we would like to introduce just two CFC Fixture applications, both of which have been successful in the industry for over 15 years and pay off.

Figure 3 shows CFC-Fixtures for Brazing of heat exchangers in a vacuum process.

Figure 4 shows CFC-Fixtures for Allen keys in an Annealing process in an atmosphere process with oil quenching.

Figure 3: Level II CFC Fixture Application for Brazing, Modine Europe

Figure 4: Level III CFC Fixture Application for Annealing incl. oil quenching, Wiha

Figure 5 shows the main advantages of CFC Fixtures (green columns) compared with state-of-the-art cast steel Fixtures (red).

This is paragraph text. Click it or hit the Manage Text button to change the font, color, size, format, and more. To set up site-wide paragraph and title styles, go to Site Theme.

Figure 5: CFC Fixture and Rack Advantages (min./max. values of the bars depending on customer situation and investment volume; by experience; © High Temperature Concept ^TM , Dr. Jorg Demmel)

Last but not least, CFC Fixtures with low weight and C.T.E. open a new perspective of heat treatment integration in the process chain between soft and hard machining . Automatic part handling can be reached effectively mainly in large-scale productions like in the automotive industry. It is reported not only by the author, but as well in /1/, that in some cases “hard machining can be eliminated completely” . This is explained by the just mentioned CFC properties and its high thermal shock and chemical resistance, and the high dimensional accuracy and shape stability of CFC Fixtures, Racks and Trays , which results in a much better process control. An increased process reliability with less product distortion is not only reported by the author for many CFC Fixture applications of heat-treated precision parts, but also mentioned for the case hardening of large surface gear parts with low-pressure carburizing (LPC) combined with high-pressure gas quenching (HPGQ) in /1/.

CFC Fixtures play an important role in controlling distortion, increasing net load, reducing multiple workpiece handling, and decreasing fixture life cycle costs. Therefore, overall manufacturing costs can be significantly reduced.

Ask for the difference!

It pays off soon.

Get your custom quote today Request Quote .

+1 941 299 9191

info@High-Temperature-Concept.com

www.high-temperature-concept.com

Sources:

J. Demmel, dissertation „ Scientific aspects of the development of new workpiece carriers for high temperature processes made of fiber composite ceramics CFC and other high temperature materials “, TU Freiberg, Germany, 2003, and
Dr. J. Demmel oral presentation „Advanced CFC - Fixture Applications, their scientific challenges and economic benefits“, 30th Heat Treat,Detroit, Michigan, 15th October 2019, and
/1/ R. Terjung: CFC-Fixtures – Quality fixturing for vacuum heat treating, 4-2016, in: Heat processing, p. 73-77

Producing Graphene from Carbon Dioxide

Wed, 21 Aug 2019 22:11:53 GMT

Direct Synthesis of Technological Material Graphene from Greenhouse Gas Carbon Dioxide – Publication in ChemSusChem

The general public knows the chemical compound of carbon dioxide as a greenhouse gas in the atmosphere and because of its global-warming effect . However, carbon dioxide can also be a useful raw material for chemical reactions. A working group at Karlsruhe Institute of Technology (KIT) has now reported on this unusual application in the ChemSusChem journal. They are using carbon dioxide as a raw material to produce graphene , a technological material which is currently the subject of intense study.

The combustion of fossil fuels such as coal and oil produces energy for electricity, heat and mobility, but it also leads to an increase of the amount of carbon dioxide in the atmosphere and therefore to global warming. Cutting this causal chain is what motivates scientists to search for alternative energy sources but also for alternative uses of carbon dioxide. One possibility could be to see carbon dioxide as an inexpensive raw material for the synthesis of valuable materials, feeding it back into the reusability cycle – maybe even in a profitable way.

An example can be found in nature. During photosynthesis in the leaves of plants, the combination of light, water and carbon dioxide creates biomass, closing the natural material cycle. In this process, it is the job of the metal-based enzyme RuBisCo to absorb the carbon dioxide from the air and make it usable for the further chemical reactions in the plant. Inspired by this metal enzyme-based natural conversion, researchers at KIT are now presenting a process in which the greenhouse gas carbon dioxide together with hydrogen gas is converted directly into graphene at temperatures of up to 1000 degrees Celsius with the help of specially prepared, catalytically active metal surfaces.

Graphene is the two-dimensional form of the chemical element carbon, which has interesting electrical properties and is therefore an option for new future electronic components. Its discovery and workability in 2004 led to worldwide, intensive research and earned the discoverers, Andre Geim and Konstanin Novoselov, the Nobel Prize for Physics in 2010. The two removed the graphene manually from a block of graphite using tape.

Several working groups at KIT have collaborated to present a method in the ChemSusChem journal for separating graphene from carbon dioxide and hydrogen by means of a metal catalyst. “If the metal surface exhibits the correct ratio of copper and palladium, the conversion of carbon dioxide to graphene will take place directly in a simple one-step process,” explains the head of the study, Professor Mario Ruben, from the Molekulare Materialien working group at the Institute of Nanotechnology (INT) and the Institute for Inorganic Chemistry (AOC) at KIT. In further experiments the researchers were even able to produce graphene several layers thick, which could be interesting for possible applications in batteries, electronic components or filter materials. The working group’s next research goal is to form functioning electronic components from the graphene thus obtained. Carbon materials such as graphene and magnetic molecules could be the building blocks for future quantum computers, which enable ultra-fast and energy-efficient calculations but are not based on the binary logic of today's computers.

Ref.: Concepción Molina-Jirón, Mohammed Reda Chellali, C. N. Shyam Kumar, Christian Kübel, Leonardo Velasco, Horst Hahn, Eufemio Moreno-Pineda & Mario Ruben: "Direct Conversion of CO₂ to Multi-Layer Graphene using Copper-Palladium Alloys" 2019. DOI: 10.1002/cssc.201901404

Feel free to reach out or explore CFC-Fixtures and Racks for Heat Treatment from High Temperature Concept .

Carbon Concrete beam under test and CO2 saving potentials

Mon, 24 Jun 2019 22:02:22 GMT

Today there are about 40,000 River and Autobahn-Bridges in Germany made of ferroconcrete. Many are getting on in years, the corrosion eats away at the steel. Now the TU Berlin is testing a technology that is supposed to take away worries about the corrosive

infrastructure and at the same time save CO ₂ : a beam bridge made of prestressed Carbon Concrete. One year long the stress tests should run, compare to the picture above. The prototype is manufactured in the scale 1:2. Now the 20 m long prototype will be tested with 600 kg/m load for one year.

The carbon concrete bars can be smaller than the actual ferroconcrete beams, because the Carbon fibers are up to five times stronger then steel! Therefore, steel can be substituted and cement can be saved partly in future.

Cement consumed a lot of CO ₂ during production, steel as well! “Construction is responsible for 11% of global carbon emissions, according to a report from C40, a group of leading metropolitan authorities.” „Steel beams support many commercial buildings and an increasing number of homes. Making them is one of the most polluting industrial processes.“

„Emissions from making the cement, steel and rubber materials that are used in construction make up 60% of a building’s emissions taken across extraction, transport and on-site, the report said.”

“Cement alone is responsible for about 7% of the world’s carbon emissions, the IEA estimates.”

Carbon concrete beams doubtless have high potentials!

Sources: VDI News, 21st June 2019, No. 25, Construction, materials, page 20, excerpts from Original from Fabian Kurmann and see for the quotations at the end
https://www.bloomberg.com/news/features/2019-06-20/what-s-wrong-with-modern-buildings-everything-starting-with-how-they-re-made

Photo source: TU Berlin/Entwerfen und Konstruieren from VDI News 21th June 2019

Feel free to reach out or explore CFC-Fixtures and Racks for Heat Treatment from High Temperature Concept .

CFC Fixtures for Oil Quenching ?

Sun, 19 May 2019 20:45:11 GMT

CFC Fixtures and Oil Quenching ?

Graphite has an open porosity of about 5 to 20 % due to the production process. The open porosity is of particular importance for the use as a carrier or rack material in heat treatment processes because of mainly two reasons: first, there is a general influence on the thermal shock resistance: the higher the open porosity, the higher the thermal shock resistance because an open porous sample, e.g. at quenching inside cooled faster than a closed one, so the temperature gradient is flatter and therefore the tensions are lower. Second, there is the influence on all processes with fluid media, f. e. quenching or washing media, because of de-/absorption of the fluid by the material.

The open porosity was measured for CFC samples using the water buoyancy method according to DIN 51918. The dimensions of the samples separated form a plate and removed from dust were approx. 100 x 50 x 5 mm. The results are shown here:

The influence on all heat treatment processes with fluid media like quenching oil is shown here: you see the process scheme: we measured the weight of the 3 CFC CF222 samples (see part 1, 6.8% open porosity in average) before Carburizing m0 (1), after Oil quenching m1 (1b), after washing in alkaline solution m2 (2) and after annealing in air m3 (3).

Next follows in general a total oil absorption of the samples mentioned before of about 5 to 6 % (black columns) after the first about 5 process cycles.

In detail the analysis diagram above shows: after carburizing and oil quenching ( green columns) an oil absorption of 6.0 % in cycle 1. Over the time, with stable conditions, the absorption reduces to about 0 % (see cycle 7 and 8), because the pores were filled with oil from the cycles before.

But why wasn’t the oil washed out in step 2 in the washing step ( blue columns)?
One reason is that oil is hydrophobic, another that it was some solidified and cracked after annealing (step 3, red columns). Note: the first annealing cycles with 170 ^o C didn’t show much oil staying in the pores or cracked oil, see desorption of high 2.8 and 2.5 % ( red columns), because the temperature was higher than the beginning oil boiling temperature range for Petrofer ISORAPID 221 at about 150 ^o C.

And, note, if the annealing temperature was increased again, here up to 180 ^o C in cycle 8 ( red arrow), again higher 2.3 % or about 50 % of the oil was emitted.

Note: an oil absorption during Carburizing couldn’t be measured because it took place in one chamber, but it occurs! Evidence by an increased C-level in the furnace chamber for a Rack application for Annealing of Allen keys with oil quenching see the next figures.
The furnace control system turned down the higher C-levels. And, note, the net load of the furnace was increased with the CFC-Rack by about 70 %. In comparison to that the C-level caused by oil is shortly about 50 % higher than with the steel basket.

Some stable process is possible if the annealing temperatures are not higher than the beginning oil boiling temperature range and the temperature cycles are stable.

The following Reference shows the former steel basket on the left and the new CFC Trays on the right. The advantages we achieved were obvious. From a load increase of 70 % over less leveling or rework of the Allen keys and CTQ values like hardness or microstructure in a smaller range to around 50 % reduced handling times during loading and unloading of the furnace carriers. Lastly the life time cycles could be increased dramatically. Conclusion: outside the box thinking and some efforts brought the Wiha company a short pay back time incl. high efficiency and a competitive advantage.

The solutions avoiding oil-absorption and desorption start with understanding the processes in detail. Based on this deep understanding there are some possibilities starting with some design considerations (high open porosity on the edges vertical to the fibers and low parallel) over some little process changes up to the usage of antimony, silicon impregnated or highly densified CFC or C/C-SiC with only 1 to 3 % open porosities. Ask us for the difference!

Sources: Dr. Jorg Demmel, 2002-2019

Feel free to reach out or explore more at High Temperature Concept to learn how we can help you implement these cutting-edge solutions.

Ingenious CFC-Racks, Fixtures and Consulting Services | See you at the Heat Treat from Oct. 15-17 2019 in Detroit

Fri, 10 May 2019 14:24:56 GMT

See you on October 15-17 at the COBO Center in Detroit, Michigan. On our Booth 1320. Let's talk about CFC-Fixtures and Racks for Heat Treatment.

See you as well in my presentation on Tuesday, October 15, 2019, at 3:20 PM in room 251C.

It is about:

Advanced CFC-Fixture Applications, some thermochemical and other details and an effective management CIP tool for Heat Treatment.

Short Profile of High Temperature Concept:

Ingenious CFC-Racks, Fixtures, and Consulting Services. High Temperature Concept stands for German Engineering & Design Quality.

Unique qualifications and references from over 25 years of experience in material engineering, applied research, Consulting, and primarily the automotive industry at the highest level guarantee ingenious CFC racks and Fixtures for high-temperature processes.

The founder and President, Dr. Jorg Demmel, received a PhD (Dr.-Ing.) degree in the field of material engineering of CFC-Racks and Fixtures.

As a pioneer of new CFC-Racks and Fixtures at the Fraunhofer Society, Stuttgart, he managed a successful market launch. He collaborates with partners and maintains a global network.

Later, he was engaged by Volkswagen and held various leading positions in the planning and quality departments for gearboxes, engines, steering, and drive modules in Germany and overseas.

Our approach is to be best-in-class. We are independent.

We know material engineering and the user industry from our own responsibility.

High Temperature Concept ^TM

1001 North Washington Boulevard

Sarasota, Florida 34236, U.S.A.

www.high-temperature-concept.com

joerg.demmel@high-temperature-concept.com

Feel free to reach out or explore more at High Temperature Concept to learn how we can help you implement these cutting-edge solutions.

Distortion Engineering and CFC Fixtures

Sat, 20 Apr 2019 18:57:13 GMT

Distortion engineering: not just a heat treatment topic

“Distortion of machine parts during manufacturing continues to cause high economic losses. Heat treatment processes, especially quenching, are often thought to be solely responsible for size and shape changes that require extensive hard machining to meet the necessary accuracy and tolerances. For the past few years, treating distortion problems as a system attribute of the entire process chain has become a widely accepted approach .” wrote Prof. H. W. Zoch.

The so called methodology of “ distortion engineerin g” consider the processes of raw material for steel parts, e.g., rough-out or rolling, soft machining, heat treatment to hard machining. There are 3 stages of the methodology mentioned in the cited article: “Step 1 the measurement of size and shape changes… Influencing parameters like geometrical symmetry or quenching speed are then determined experimentally and quantitatively”. “Step 2 tries to understand distortion mechanisms, based on so-called “carriers of distortion potential,” e.g. row material chemical homogeneity, introduced stresses during soft machining steps and the parts microstructures over manufacturing steps. “All distortion potential carriers undergo the possibility to be released (like residual stresses) or introduced (like changes in symmetry by machining) during manufacturing chain.”

The Step 2 understanding distortion “should be supported by modeling and simulation”, Prof. H. W. Zoch goes on and he added: “but much development is needed to meet the required accuracy for practical application.”

High Temperature Concept's approach is here different, it’s not the time for every problem and not necessary to understand the distortion engineering 100 %, from bottom up. But, top down is promising some success for industry now! Because the main root reasons which cause distortion are clear. E. g. for soft machining metal cutting with sharp cutting edges and some optimal cutting speed avoid residual stresses or for heat treatment the arrangement of the products in the Rack (2D and 3D), a continuous heating, carburizing and quenching or cooling flow avoid stresses and after e.g. high pressure cooling and phase transformation distortion ! Here we are at “Step 3 the compensation of distortion effects”. Mr. Zoch goes on with “…sometimes allows for compensation of distortion effects by inverting these influences, e.g., correction of out-of-roundness by inhomogeneous quenching process.”

Focused on experience HTC understood the main influences incl. the Fixture and Rack Material and Design as one main impact on distortion. See the Figure which shows the Coefficients of Thermal Expansion (C.T.E.) at room temperature and at 1,000 C for different heat resistant materials: for CFC there is in the fiber direction almost no expansion to high temperatures. Meaning that Fixtures made of CFC don't change their dimensions. Furthermore, CFC does not change its form as well.

We have pr oved our knowledge several times in industry. HTC's Step 2 distortion understanding is directly connected with Step 3 distortion problem solving. The main contributor are custom made best-in-class CFC-Fixtures and Racks and they bring usually great benefits to our customers .

We started this methodology in the mid of the 1990s.

Let’s bring excellence and a high profitability into your everyday operations.

Get your custom quote today Request Quote

+1 941 299 9191

info@High-Temperature-Concept.com

www.high-temperature-concept.com

Sources: HTPro, Feb/Mar 2019, No. 2, page 2 and sources/references Dr. Jorg Demmel

A New Generation of Fixtures - See you at the Thermal Prozessing in Motion on June 5-7 in Spartanburg, SC

Tue, 15 May 2018 13:37:16 GMT

See you on June 5-7 in Spartanburg, South Carolina, in the Marriott Hotel on Tabel Top # 12, and let's talk about a new generation of Fixtures and what's in it for you

High Temperature Concept ^TM designs and manufactures outstanding C/C near-net-shape Racks and offers Quality Consulting Services for High Temperature Processes and process surroundings.

The High Temperature Concept ^TM team consists of well known experts and our supplies are based on our experience of more than 20 years in user industry worldwide. In Europe, we are involved in the implementation of different solutions for many companies. We are independent. Our aspiration is to be best-in-class. Our customers come from heat treatment, vacuum brazing, CVD/PVD and more in Automotive, Aviation, Engineering, Medical devices or Tool Industries.

High Temperature Concept ^TM

1001 North Washington Boulevard

Sarasota, Florida 34236, U.S.A.

www.high-temperature-concept.com

joerg.demmel@high-temperature-concept.com

Feel free to reach out or explore more at High Temperature Concept to learn how we can help you implement these cutting-edge solutions.

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CFC Fixturing - Sustainability Through Efficiency

CFC-Fixturing - Sustainability Through Efficiency

We delivered some new CFC-Racks

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𝙃𝙞𝙜𝙝 𝙏𝙚𝙢𝙥𝙚𝙧𝙖𝙩𝙪𝙧𝙚 𝘾𝙤𝙣𝙘𝙚𝙥𝙩 𝙬𝙚𝙡𝙘𝙤𝙢𝙚𝙨 𝘿𝙧. 𝙑𝙤𝙡𝙠𝙚𝙧 𝙆𝙖𝙚𝙨𝙚

Could you imagine using no Fixture for your Heat Treatment Process?

We work on it. Using less fixture material and volume is the best way to heat treat your products best

Advanced CFC Fixtures designed by High Temperature Concept are the Solution

CFC Heat Treatment Fixtures: Enhancing Precision and Efficiency in Industrial Processes

CFC Heat Treatment Fixtures: Enhancing Precision and Efficiency in Industrial Processes

Secure, reliable, and high-quality heat treatment with advanced CFC fixtures.

Fixtures for Aerospace Applications manufactured in the USA

What do you see? An impressive aircraft engine, right?

High Temperature Concept designs and delivers custom made, best-in-class CFC Fixtures and Racks for heat treatment, manufactured in the USA.

But what does the picture have to do with it?

Best-in-class heat treatment Fixtures manufactured in the USA

CFC Fixtures, Racks, Grids, Trays, Baskets, and other custom-made parts for Sintering, Brazing, Coating, HIP, and other processes from the heat treatment fixture designer and manufacturer in the USA.

New CFC Racks meet the highest customer requirements

New CFC Racks and Fixtures in heat treatment with high quality CFC Grids and Posts stand out. Do you know why?

CFC Vacuum Furnace Fixtures, Vacuum Furnace Racks, or just CFC Grids in modular and monolithic designs for precise, efficient heat treatment.

See you in Detroit at the Heat Treat Exhibition on Booth 921 on Oct. 21-23 2025

See you in Detroit at the Heat Treat 2025 on the Americarb Booth 921 from Oct. 21-23.

See you in Detroit at the Heat Treat Exhibition on Booth 1833 on Oct. 17-19 2023

See you in Detroit at the Heat Treat Exhibition on Booth 1833 on Oct. 17-19 2023

Boost your heat treatment with new CFC-Fixtures and save the most

Unique CFC Fixtures and Racking Systems for precise, efficient heat treatment

Video of the 10th powerful Advantage “CFC-Fixtures help to reduce hard machining” by High Temperature Concept

Video of the 9th powerful Advantage “CFC-Fixtures make automated part handling possible” by High Temperature Concept

10 Powerful Advantages of CFC Fixtures You Need to Know

Maximize Precision and Productivity with CFC Vacuum Furnace Racks

Video of the 8th powerful Advantage "With CFC-Fixtures product quality can be increased significantly compared with steel fixtures" by High Temperature Concept

Video of the 7th powerful Advantage “With CFC-Fixtures up to 90 % less product distortion than with steel fixtures” by High Temperature Concept

Video of the 6th powerful Advantage “CFC-Fixtures need up to 90 % less rework than steel fixtures” by High Temperature Concept

Video of the 5th powerful Advantage “CFC-Fixtures reach up to 5 times longer life cycles compared to steel fixtures” by High Temperature Concept

Video of the 4th powerful Advantage “CFC-Fixtures can reduce the process cycle times up to 30 % compared to steel fixtures” by High Temperature Concept

Video of the 3rd powerful Advantage “CFC-Fixtures can carry up to 100 % more net load than steel fixtures” by High Temperature Concept

Video of the 2nd powerful advantage: “CFC-Fixtures consume 5 times less energy than steel fixtures” by High Temperature Concept.

Video of the 1st powerful Advantage “CFC-Fixtures are 5 to 10 times lighter than steel fixtures” by High Temperature Concept

CFC Fixture Advantages and Challenges in Vacuum Heat Treatment, Part 2

This article in Heat Treat Today is about CFC Fixtures as a great opportunity for Heat Treaters. Part 2.

CFC Fixture Advantages and Challenges in Vacuum Heat Treatment, Part 1

This article in Heat Treat Today is about CFC Fixtures as a great opportunity for Heat Treaters. Part 1.

Two opportunities seeing you in Louisville on the Furnaces North America

How to increase the Furnace load up to +100 %

Producing Graphene from Carbon Dioxide

Carbon Concrete beam under test and CO2 saving potentials

CFC Fixtures for Oil Quenching ?

Ingenious CFC-Racks, Fixtures and Consulting Services | See you at the Heat Treat from Oct. 15-17 2019 in Detroit

Distortion Engineering and CFC Fixtures

A New Generation of Fixtures - See you at the Thermal Prozessing in Motion on June 5-7 in Spartanburg, SC

�� , our Customers come first.