渗碳层的碳浓度常用剥层试样测定。最近,我们在现场利用试棒的表面积、增加的碳重量及渗层深度来近似测定试棒表面含碳量。现介绍如下: 一、计算公式在一定工艺条件下,渗碳层平均碳浓度曲线与实际碳浓度曲线是十分接近的。因此可以采用下式近似计算试棒的表 Carburized carbon layer thickness of the commonly used test samples. Recently, we used the test rod surface area, increased carbon weight and depth of penetration to approximately determine the carbon content of the test rod surface. Now introduced as follows: First, the formula In a certain process conditions, the average carburized carbon concentration curve and the actual carbon concentration curve is very close. Therefore, the following formula can be used to approximate the test bar table