一、概述氮化又称为渗氮,是化学热处理中一种变形最小的表面硬化法。其化学方程式为渗氮时,将清洗脱脂后零件放在加热炉内的密封容器中,氨以一定的流量和流速通入容器,然后加热到氮化温度,保持适当时间,使氨受热分解出来的氮原子渗入零件的表层,使表层的金属成为含氨的化合物。氮化后零件除了可获得硬度很高的表面层外,还可获得抗碱、水和盐的抗腐蚀性能,且能在高温下保持零件的原有硬度,增加零件的抗疲劳性。氮化是零件热处理的最后一道工序,除了高精度 First, an overview Nitriding, also known as nitriding, chemical heat treatment is a minimal deformation of the surface hardening method. The chemical equation for nitriding, the parts will be cleaned and degreased on the sealed container in the furnace, ammonia flow into the container at a certain flow rate and flow, and then heated to the nitriding temperature, to maintain an appropriate time, so that the decomposition of ammonia heat out The nitrogen atoms penetrate the surface of the part, so that the surface of the metal into ammonia-containing compounds. After nitriding parts in addition to get a high hardness of the surface layer, but also get anti-alkali, water and salt corrosion resistance, and can maintain the original hardness of the parts at high temperatures, increasing the fatigue resistance of parts. Nitriding is the last step in the part heat treatment, except for high precision