Solutions for High-Temperature Furnaces and the Sintering and Hard Metal Industry

Mastering Thermal Processes – with Premium Carbon Materials

Around the topic of heat treatment, we have developed a product portfolio that sets new standards in technological innovation. Our customers worldwide benefit from the advantages of our furnace components, insulation materials, charge carrier systems, kiln furniture, and temperature measurement solutions. Since we develop and manufacture all our premium carbon materials in-house, we can guarantee first-class processing quality and consistent quality control directly from the source.

Experienced Partner for High-Temperature Applications

Heat Treatment with Deep Technical Expertise

We understand your market’s requirements. And more importantly: we know how to deliver the right technological answers. As one of the world’s leading specialists in high-temperature applications, Schunk offers well-thought-out solutions and value-added innovations for every market. From patented components for furnace chamber maintenance to siliconized material solutions and intelligent designs for charge carriers – we combine our comprehensive know-how in materials and applications to deliver results. The outcome: solutions that successfully unite cost-efficiency, energy efficiency, and durability.

Furnace Construction

Advanced Insulation Materials for Furnace Engineering

Carbon felts, boards, foils, and profiles for high-temperature furnaces

The extreme conditions in high-temperature furnaces can damage insulation and significantly reduce the service life of the heating chamber. If the insulation fails completely, repairs are often complex and costly, resulting in extended downtimes. Regular maintenance and the use of high-quality insulation materials are therefore strongly recommended. Schunk offers cutting-edge material solutions for furnace construction, including carbon felts, boards, foils, profiles, fastening elements, and coating powders. These materials are engineered for longevity, purity, and process stability, even under extreme thermal conditions.

Furnace Construction

Furnace Upgrades

Cost-Efficient, Energy-Efficient, and Long-Lasting

Carbon offers numerous benefits for high-temperature furnaces, including exceptional thermal resistance in inert atmospheres and outstanding thermal shock resistance. That’s why our components made of carbon fiber-reinforced carbon (CFC) set new standards in insulation and fastening applications – optimizing efficiency, energy use, and lifespan. Schunk provides high-performance material solutions such as MechTherm®, known for its excellent mechanical properties, and InsuTherm®, recognized for its outstanding insulation performance.

Service That Ignites Enthusiasm

As our customer, you can always count on added value – thanks to our comprehensive service offering. We support you throughout every stage of your customized furnace concept and remain at your side even after successful integration into your production. Our support doesn’t stop with delivery: with a globally connected sales network and on-site presence in most regions, we’re here to help – even post-sales.

Metallurgy

Foundry, Molding, and Sintering – with Confidence

Molds, frames, barriers, and auxiliary tools for metallurgical applications

Benefit from our graphite and CFC materials that maintain dimensional stability even far above the melting temperatures of most metals. They show minimal thermal deformation and excellent thermal cycling resistance. These outstanding properties are achieved even with thin-walled components, resulting in significant weight savings that enhance hardness outcomes, speed up firing cycles, and increase the overall efficiency of your high-temperature furnaces.

Metallurgy

Continuous Casting & Aluminum Casting Components

Advanced Materials, Smart Solutions, and Added Value

High-quality semi-finished products made of non-ferrous metals and their alloys are often produced using the continuous casting process. Our continuous casting molds provide excellent thermal stability without reacting with the alloy. In aluminum melt refining, graphite rotors and shafts are commonly used. In sintering applications, CFC sintering plates and boxes offer substantial advantages over graphite – being both lighter and more stable. During hot pressing, our CFC materials are the ideal choice for applications that involve both high temperatures and mechanical pressure. All of our materials are non-contaminating to your products.

Durafox® – Innovative Protection Against Carburization

At temperatures above approx. 1,050 °C, steels react with carbon, forming eutectic compounds that lower the metal’s melting point. The result: potential contamination of the customer’s product due to material diffusion or even melting of components. Full ceramics or ceramic coatings are essential barriers between steel and carbon. Our oxide fiber composites (OFC) under the Durafox® Ceramics brand are known for their high damage tolerance and excellent thermal cycling resistance. Depending on the material variant, they can be used continuously at temperatures up to 1,300 °C. Unlike graphite and CFC, Durafox® does not oxidize, enabling its use under oxidizing conditions.

Durafire® – Optimal Performance After Oil Quenching

After oil quenching in heat treatment, charge carriers face significant stress. Conventional materials may suffer from cavitation and erosion due to bubbles forming in the oil. Oil also penetrates the open pores of the carriers, and subsequent processes like tempering, washing, and drying cannot completely remove the residual oil. During the next use, this oil vaporizes and causes soot formation. Durafire® Dense carriers are engineered specifically for these challenges. The result: a long-lasting material that ensures optimal post-treatment performance.