一 深层渗碳过程的特点 1.深层渗碳的特点 深层渗碳的基本特点是获得很深的渗碳层(总深度5—8毫米)。渗碳系由分解、吸收和扩散过程组成。分解的少,吸收的少,影响渗碳速度。分解的过多,则吸收不了。表面积成过多的炭黑阻碍了渗碳。因此,对于在长时间的渗碳情况下正确选择渗碳方法和渗碳剂有着重要的意义。首先是渗碳剂的 The characteristics of a deep carburizing process 1. The characteristics of deep carburization The basic characteristics of deep carburization is to obtain a deep carburized layer (total depth of 5-8 mm). Carburization consists of decomposition, absorption and diffusion processes. Less decomposition, less absorption, affecting the carburizing speed. Too much decomposition, can not absorb. The excessive surface area of ​​carbon black blocks carburization. Therefore, for the long time carburizing the correct choice of carburizing method and carburizing is of great significance. The first is the carburizing agent