一前言热处理加热过程中,有两大重要因素:一个是用多高的温度,另一个就是用多长的时间。关于温度方面,有很多资料,可以帮助我们参考决定;但是在时间方面,则这种资料并不太多。当我们选定好一种确当温度之后,如何的估计加热时间,就很成问题。太长了,非但不经济,并且容易产生「过热」的各种毛病;太短了,工作件又不能达到预期效果。 Introduction In the heat treatment process, there are two important factors: one is how high the temperature is, and the other is how long it takes. With regard to temperature, there is a lot of information that can help us with reference to the decision; but in terms of time, this information is not too much. When we choose a proper temperature, how to estimate the heating time is very problematic. If it is too long, it will not only be uneconomical, but it will be prone to various problems of “overheating”; if it is too short, the work piece cannot achieve the desired effect.