论文部分内容阅读
碳钢在我国钢材中产量最多,用量最大。因此,研究碳钢的氮化工艺对于国民经济,尤其是对于农业机械化有着十分重要的意义。近两年来,我们为解决这一问题,曾进行过多种方案的试验研究。最近,我们试验成功了一种新的氮化离子工艺——钛氮碳三元离子共渗。这种工艺是同时向离子氮化炉中通入氨气(供氮)和酒精(在真空条件下自行挥发,产生气体供氮),并在阴极和阳极上放置海绵钛(供钛)进行离子共渗处理。经多次反复试验表明,采用此工艺方法,可以使45钢的表面硬度从原来的 HV_(0.1)234提高到 HV_(0.1)1000～1290。此硬
Carbon steel in China’s steel production up to the largest amount. Therefore, studying the nitriding process of carbon steel is very important for the national economy, especially for agricultural mechanization. In the past two years, we have conducted pilot studies on various options to solve this problem. Recently, we successfully tested a new nitriding process - titanium-carbon-carbon ternary iontophoresis. In this process, ammonia (for nitrogen) and alcohol (volatilize under vacuum to generate gas for nitrogen) are simultaneously introduced into the ion nitriding furnace, and sponge titanium (for titanium) is placed on the cathode and the anode for ions Permeation treatment. After repeated tests, it has been shown that the surface hardness of 45 steel can be raised from HV0.1342 to HV0.1000 ~ 1290 by this process method. This hard