热处理工艺: 氮碳共渗 (铁素体氮碳共渗)，气体软氮化
Heat Treatment: Ferritic Nitrocarburizing, Gas Nitriding

优点: 
耐疲劳性，耐冲击性和耐腐蚀性能都有明显上升。
变形量小。
无公害处理，对环境友好：无火，油，烟可使环境恶化的因素。
安全：无人化操作，不必担心在火灾，爆炸，地震等一些灾难性事故时的人员问题。

Advantages:
Improvement in wear resistance, impact resistance and corrosion resistance.
Low deformation.
Environment friendly: No fire, oil and smoke during the heat treatment.
Safety: Unmanned automatic operation, system shuts off  automatically in case of fires, explosions and earthquakes.