氮基渗碳气氛在目前是一个具有现实意义的题目。开始人们对研究这个题目很高兴,而后来这种高兴变成了怀疑,因为用许多费用进行的试验到现在只得到部分结果,而至今还缺乏对渗碳气氛的认真分析。下面以评论的方式说明一些“合成气体”的可控性。为了控制以吸热式气氛、滴注液体为基础的渗碳气氛,在实际中有一系列测量方法,其中最古老的、而一直使用的测量技术是露点测量。尽管许多测量原理已很清楚,如吸湿性盐导电性的变化、湿度镜反射性能的变化、电容测针介电常数的变化、红外线吸收作用的变化等等,但这些原理没有一个能在热处理生产中广泛运用。最重要的原因是, Nitrogen carburizing atmosphere is currently a topic of practical significance. The beginning of the study of the subject is very happy, and later this happy became suspicious because the test with many costs now only get some results, but still lack of careful analysis of carburizing atmosphere. The following is a commentary on some of the “syngas” controllability. In order to control the carburizing atmosphere based on the endothermic atmosphere and the drip liquid, there are a series of measurement methods in practice, of which the oldest and always used measurement technique is dew point measurement. Although many of the principles of measurement are well established, such as changes in conductivity of hygroscopic salts, changes in the reflective properties of the hygroscope, changes in the dielectric constant of the capacitance stylus, changes in infrared absorption, etc., none of these principles can be produced by heat treatment Widely used. The most important reason is that,