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近年来,新发展的几种主要渗氮技术有:1)以氮气为基的气体软氮化法。该法所使用的气体以N_1和NH_3为主并添加有一定量的CO_2。不需要设置一般气体软氮化法所必需的RX气体发生炉,所以操作简单,比传统气体软氮化法的渗氮速度快。此法可精确控制渗氮剂气体流量,容易调整表面化合物层厚度;2)氧氮化法、该法以氨和适量空气或氧气为渗氮剂,由于含有少量氧会促进NH_3的分解,提高活化的氮量,
In recent years, several newly developed nitriding technologies are: 1) Nitrogen-based gas soft nitriding. The gas used in this method is mainly N_1 and NH_3 and is added with a certain amount of CO_2. There is no need to set up the RX gas generator necessary for the general gas nitrocarburizing process, so the operation is simple and nitriding speed is faster than that of the conventional gas soft nitriding method. This method can precisely control the flow of nitriding gas and easily adjust the thickness of the surface compound layer; 2) oxynitride method, which uses ammonia and proper amount of air or oxygen as the nitriding agent, and contains a small amount of oxygen to promote the decomposition and increase of NH 3 Activated nitrogen content,