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气体渗碳是机械另件先进化学热处理方法的一种,现在已在我国一些工厂中推广应用;但是在目前大多数的工厂中,仍是应用固体渗碳剂渗碳。这是因为固体渗碳具有它独特的优越处,特别是它的设备较为简单,并可用固体燃料作为热源。因此对固体渗碳进行研究,在现有的基础上提高渗碳质量,缩短工艺时间,掌握固体渗碳的规律,只及选用低价的渗碳剂等,仍有着很大的实践意义。固体渗碳剂的主要组成成分是木炭粒及促进剂。促进剂一般为碳酸盐,如碳酸钡(BaCO_3)、碳酸钠(Na_2CO_3)等,它的作用是提高活性、加速渗碳过程。据苏联工程师鲁科沙的最近研究,
Gas carburizing is a kind of advanced chemical heat treatment method of mechanical parts. Now it has been popularized and applied in some factories in our country. However, in most factories at present, solid carburizing carburizing is still applied. This is because solid carburization has its unique advantages, especially its equipment is relatively simple, and the solid fuel can be used as a heat source. Therefore, it is of great practical significance to research on solid carburizing, to improve the quality of carburizing, to shorten the processing time, to grasp the regularity of carburizing solid, and to use the low-cost carburizing agent on the existing basis. Solid carburizing agent is the main component of charcoal tablets and accelerator. Accelerators are generally carbonates, such as barium carbonate (BaCO 3), sodium carbonate (Na 2 CO 3), etc. Its role is to increase activity and accelerate carburization. According to a recent study by Soviet engineer Lu Kosha,