固体渗碳法虽然被广泛地应用着,但是,这种工艺方法存在着一些缺点,如渗碳速度慢、劳动条件差、渗碳层表面质量不易控制,往往形成网状渗碳体,在磨削时出现裂纹。为了解决这些问题,我们由去年下半年起,进行了以沥青为渗碳剂的工艺试验。试验结果证明效果良好,现介绍如下,供有关同志参考。 Although solid carburizing method is widely used, however, this method has some shortcomings, such as slow carburizing, poor working conditions, carburizing layer surface quality is not easy to control, often form reticular cementite, grinding Cracks when cutting. In order to solve these problems, from the second half of last year, we started the process test of using bitumen as a carburizing agent. The test results show that the effect is good, are presented below for reference by the relevant comrades.