如何做好调质工作

• 作 者: 姚杏熙
• 机 构: 济宁齿轮厂,
• 出 处: 机械工人
• 发表日期: 1983年07期
• 关键词: 调质 调质处理 机械制造工业 综合机械性能 短轴 齿轮 拉杆 套筒 索氏体 齿条

在机械制造工业中,需要进行调质处理的工件很多,如连杆、齿轮、短轴、套筒、齿条、链轮、拉杆等,量大面广。调质处理的目的是:使零件有良好的综合机械性能(在一定的硬度范围内,使强度与塑性、韧性有最好的结合),为以后的热处理作好组织上的准备。所谓调质就是指在高于 Ac_3点加热进行完全淬火,然后再高温索氏体化回火。实际上是淬火和高温回火两道工序的结合。

In the machinery manufacturing industry, the need for a lot of quenching and tempering of the workpiece, such as connecting rod, gear, short shaft, sleeve, rack, sprocket, rod, etc., The purpose of quenching and tempering treatment is to make the parts have good comprehensive mechanical properties (the best combination of strength and plasticity and toughness within a certain hardness range), so as to make the organizational preparations for the subsequent heat treatment. The so-called quenching and tempering means that the temperature above Ac_3 is completely hardened, and then the high-temperature sorbite is tempered. In fact, quenching and tempering the combination of two procedures.