Surface treatment using a multi-atmosphere furnace for metal processing.

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last updated：Feb 02, 2026

サーモニックENG

Achieving targeted surface chemistry in a short cycle through wet atmosphere sintering that is not constrained by gas types.

In the metal processing industry, surface treatment requires precise atmosphere control to enhance the durability, corrosion resistance, and functionality of products. In particular, reaction control at high temperatures and uniform surface modification are critical factors that influence product quality. Conventional firing furnaces have limitations in the types and control of atmosphere gases, leading to challenges in reproducibility and efficiency. Multi-atmosphere furnaces address these issues and cater to diverse surface treatment needs. 【Application Scenarios】 - Prevention of oxidation in metal parts - Surface hardening treatment - Pre-treatment for coating 【Effects of Implementation】 - Improvement in the quality of surface treatment - Reduction in processing time - Adaptation to various gas atmospheres - Achievement of highly reproducible treatments

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basic information

【Features】 - Humidification system independent of gas type: Direct connection to Wetter for setting humidification levels for N2/Ar/air (small amounts of H2 also acceptable). - Vacuum replacement → gas replacement: Pre-removal of air inside the sample to achieve the desired humid atmosphere from the start. - Speed of switching: Easily switch between dry/wet and N2/Ar/air (small amounts of H2). - Shelf stacking × rectangular sheath: Short cycle parallel testing of multiple samples under the same conditions. 【Our Strengths】 Our company uniquely integrates the three technologies of "electricity," "equipment," and "chemistry" with proprietary know-how to develop innovative heating furnaces and other equipment. We are not just an equipment manufacturer; we are a strategic development partner that supports innovative manufacturing with advanced heating, looking ahead to the standards of the next decade in collaboration with our customers.

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※*Please feel free to contact us for details, as delivery times may vary depending on the equipment specifications.

Applications/Examples of results

【Regarding these issues】 ■ We want to stably supply gas derived from cylinders at a specified dew point and sinter it in a humid atmosphere as is. ■ Humidification tends to fluctuate / switching is slow, leading to a lack of reproducibility. ■ We are hesitant to proceed due to fears of condensation, backflow, contamination, and corrosion. ■ In tube furnaces, the degree of parallelism is low, and it takes time to establish conditions. *For more detailed information, please download the materials or feel free to contact us.