氮化是一种将氮原子渗入钢件表面层的化学热处理。它是利用氨气,在高温480℃～600℃,所分介出来的活性氮原子,它有较强的活性,那就很容易被氮化工件表面所吸附,并随保温时间延长,表面过饱和氮原子,不断向氮化工件内部进 Nitriding is a chemical heat treatment that infiltrates nitrogen atoms into the surface layer of steel. It is the use of ammonia, at a high temperature of 480 ° C ~ 600 ° C, the points out of the active nitrogen atoms, it has strong activity, it is easily adsorbed on the surface of the nitride workpiece, and with the holding time extended, the surface too Saturated nitrogen atoms, continue to nitriding within the workpiece