渗碳是目前机械制造工业中应用相当广泛的一种化学热处理方法,通过对低碳零件的表层进行渗碳,以获得不同于心部的良好机械性能。为了使渗碳零件都能够达到预期的性能,作为检验渗碳零件的重要手段之一——精确地测定渗碳层深度是很重要和很有意义的。 一、国内外现行的渗碳层深度测定方法 在我国,渗碳层深度的测定,至今还没有建立起一个统一的标准。归纳起来有下面三种量取方法: 1.从表面量取到出现均匀的原始组织处,即渗碳层深度=过共析层+共析层+过 Carburizing is a widely used chemical heat treatment method in the machinery manufacturing industry. Carburizing the surface of low carbon parts to obtain good mechanical properties different from the heart. In order to achieve the expected properties of carburized parts, as one of the important means of testing carburized parts - accurate determination of carburized layer depth is very important and meaningful. First, the current depth of carburizing method at home and abroad in our country, the determination of carburized depth, has not yet established a uniform standard. Summarize the following three methods to take: 1 from the surface to obtain the amount of uniform primary organization, that is, the depth of carburizing layer = hypereutectoid layer + eutectoid +