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在钢的表面化学热处理工艺中,碳氮共渗(气体氰化)是比渗碳法更先进的一种方法。它是把钢件放在含有60～90％。渗碳气体和20～40％氨的混合气体中,在500～700℃或750～900℃的温度下经过几小时的处理过程,使碳和氮同的渗透到钢另件的表层。如果采用低温碳氮共渗,那么工件不必经过淬火,就能得到坚硬的表层。如果采用高温碳氮共渗,那么在处理后接着淬火,可以在坚强的中心层上獲得很硬而良好的耐磨层。
In the steel surface chemical heat treatment process, carbonitriding (gas cyanidation) is a more advanced method than carburizing. It is the steel containing 60 to 90%. Carburizing gas and 20 to 40% ammonia gas at a temperature of 500 to 700 ° C or 750 to 900 ° C for several hours to allow carbon and nitrogen to penetrate to the surface layer of the steel member. If you use low-temperature carbonitriding, then the workpiece does not have to be quenched, you can get a hard surface. If high-temperature carbonitriding is used, then quenched after treatment, a hard, good wear resistant layer can be obtained on a strong center layer.