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在冶金、化工、机械加工、耐火等工业生产工艺过程中,或实驗室的試驗过程中,很多情况是需要根据不同的阶段来改变过程的控制参数,因此就必须采用程序调节器。本文着重介紹电加热的热处理爐的温度程序控制。热处理是金属加工过程中的一重要环节,通过热处理可以改变金属的結晶組織,从而使金属有好的加工性能,或达到一些力学、物理、化学上的要求,例如机械强度、硬度、耐磨性、弹性、导磁性等等。在热处理过程中,必须先按照一定的速度升温,到达处理溫度后再按照一定的时间保温,再按一定速
In metallurgical, chemical, mechanical, refractory and other industrial processes, or laboratory tests, many situations require changing the process control parameters according to different stages, so program regulators must be used. This article focuses on the electric heating of the heat treatment furnace temperature program control. Heat treatment is an important part of the metalworking process. The heat treatment can change the crystalline structure of the metal, so that the metal has good processing properties, or meet some mechanical, physical and chemical requirements, such as mechanical strength, hardness, abrasion resistance , Elasticity, permeability and so on. In the heat treatment process, must first be heated at a certain speed, reach the processing temperature and then according to a certain period of time insulation, and then press a certain speed