Metal components are heated and held at a vacuum environment. During this holding period, acetylene (or ammonia gas simultaneously) is pulsed through the vacuum to perform carburizing (carbonitriding). The carburized (carbonitrided) components are then transferred to another vacuum chamber for rapid cooling with high-pressure nitrogen (20 bar) to complete the quenching process.

• Technological Innovation: Carburizing (carbonitriding) and tempering in a vacuum environment prevents metal components from being affected by oxygen-containing environments, while simultaneously improving surface hardness and fatigue resistance.

• Competitive/Intellectual Advantage: Advanced vacuum heat treatment technology further improves product performance and reduces heat treatment energy consumption.

• Significant Achievements/Awards: Assisted domestic micro-transmission component manufacturers in improving product lifespan and dimensional accuracy after heat treatment.