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一、概述低氰盐高温液体渗碳是一种先进的快速化学热处理方法。它由氰化钠分解出碳、氮原子来饱和钢的表面,又因渗碳盐浴中氯化钡的作用,使钢表面含氮量下降很多。它能和活波的氮结合和破坏生成的氮化物。盐浴的脱氮作用是根据以下反应进行的:2Fe_nN+3BaCl_2=2NCl_3+2nFe+3Ba这样,加入氯化钡提高了盐浴的使用温度和减小氮化物对增碳过程的阻滞作用,使增碳过程变得更活跃,因而仍称作液体渗碳。液体渗碳适用于一切渗碳另件(对于太长大
First, an overview of low-cyanide liquid high temperature carburizing is an advanced rapid chemical heat treatment method. It is decomposed by sodium cyanide carbon, nitrogen atoms to saturate the surface of the steel, but also because of carburizing bath barium chloride role in the steel surface nitrogen content decreased a lot. It binds to live-wave nitrogen and destroys the resulting nitride. Salt bath denitrification is carried out according to the following reaction: 2Fe_nN + 3BaCl 2 = 2NCl 3 + 2nFe + 3Ba In this way, the addition of barium chloride increases the temperature of the salt bath and reduces the retardation effect of the nitride on the carbon-raising process, The carbonation process becomes more active and is therefore still referred to as liquid carburizing. Liquid carburizing is suitable for all carburizing parts (for too long