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一、引言大约八年前,DBGI(DavidBrown Gear Industries)就已开发并在1983年报道了渗碳和淬火后计算渗层硬度分布的方法。同时,这家企业运用这种方法建立了自己的材料标准,解决了生产中的大量问题。迄今为
I. INTRODUCTION About eight years ago, DBGI (David Brown Gear Industries) had developed and reported in 1983 the method of calculating the hardness distribution of an infiltrated layer after carburizing and quenching. At the same time, the company used this method to establish its own material standards and solve a large number of problems in production. So far