介绍了当前国内织针热处理工艺中淬火和回火加工所用的设备、工艺及存在的问题，提出了解决方法和对策。
Heat treatment process, equipment and technical problems of needle are introduced. Methods and countermeasures to solve the problem are put forward.
本文介绍国产A508-3钢在不同的淬火、回火和退火条件下的热处理实验的某些结果。
This paper presents some results of heat treatment experiments of A508-3 steel at different quenching, tempering and annealing conditions.
以一个全封闭恒温车间内热处理油烟的收集与净化为例，介绍了井式淬火油槽和井式回火炉中所产生油烟的收集与净化方法。
A method for gathering and purifying the oil smoke which was produced by oil quenching tanks and tempering in the whole-sealed and constant-temperature heat treatment plant was introduced.
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