Firing of heat-resistant parts using a carbon furnace for aerospace applications.

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last updated：Feb 02, 2026

サーモニックENG

Improving the quality and performance of heat-resistant components in extremely low oxygen environments.

In the aerospace industry, high levels of safety and reliability are required, making the quality of heat-resistant components crucial. To withstand high-temperature environments, precise temperature management during the firing process and environmental control to maximize material properties are essential. Carbon furnaces optimize the sintering, phase transitions, and energy control of surfaces and interfaces of heat-resistant components through ultra-low oxygen environments and high-temperature control at around 3000°C, enabling the production of high-quality products. 【Application Scenarios】 - Sintering of turbine blades for aerospace engines - Firing of rocket nozzle materials - Firing of heat-resistant coatings 【Effects of Implementation】 - Improved strength and durability of heat-resistant components - Enhanced performance through microstructure control of materials - Increased reproducibility of the manufacturing process

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【Features】 - Achievement of extremely low oxygen partial pressure: By vacuum pumping followed by Ar/N2 replacement (with diluted H2 as needed), the oxygen potential is gradually reduced, and residual O2 is absorbed through the getter action of the carbon in the furnace material. - High-temperature stability at around 3000℃: Usable up to 2800℃/maximum up to 3000℃, with precise control through gradual heating and holding. - Parallel evaluation of multiple samples: High freedom of tray arrangement with rectangular trays/multi-layer shelves, enabling faster parallel testing under the same conditions. - Continuous process from pretreatment to final firing: Vacuum, replacement, and heating are sequenced continuously to suppress recontamination/reoxidation. 【Our Strengths】 We integrate three technologies: "electricity," "equipment," and "chemistry," to develop innovative heating furnaces. Looking ahead to the standards of the next decade, we are a strategic development partner that supports manufacturing with innovative heat in collaboration with our customers.

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Applications/Examples of results

【On such issues】 ■ The incorporation of trace O2 leads to oxidation and decarburization at high temperatures, resulting in unstable phase purity and grain boundary characteristics. ■ It is difficult to achieve consistent temperature application/reproduction, and results vary due to size and fixture differences. ■ Recontamination and reoxidation occur when pre-treatment and main firing are conducted in separate furnaces. ■ The processing capacity in tube furnaces is low. *For more detailed information, please download the materials or feel free to contact us.