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在热处理和机械加工中常常需要了解所给定材料的含碳量,并且根据这个含碳量来选择最佳工艺参数。而在现场碰到材料搞错或混号的情况时,最常见的就是用火花鉴别法进行大致的定性或半定量的分析来进行鉴别。可是这种方法需要相当熟练的技术才能掌握。而在现场要得到精确的化学分析值,往往又缺乏条件。现在有一种现场快速测定含碳量的简便方法——最高硬度法。这个方法简单可靠,根据这个方法所得的最高硬度平均值,查表1,可查得相对应的含碳量。此方法适用于结构钢或类似这种成份的铸锻钢材,
In heat treatment and machining it is often necessary to know the carbon content of a given material and to select the optimum process parameters based on this carbon content. When encountered in the field of material mistakes or mixed case, the most common is the use of spark identification method for qualitative or semi-quantitative analysis to identify. However, this method requires fairly sophisticated techniques to master. In the field to get accurate chemical analysis, often lack of conditions. There is now an easy way to quickly determine the carbon content in the field - the highest hardness method. This method is simple and reliable, according to the highest average hardness obtained by this method, look up Table 1, you can check the corresponding carbon content. This method is suitable for structural steel or similar forging cast steel,