前言 将电接触表面加热原理应用于机床导轨或其它大型零件的表面淬火工艺是我国工人阶级在无产阶级文化大革命中的一项发明创造。用这种淬火方法处理过的机床导轨,其抗擦伤能力和耐磨性均有明显的提高。 电接触表面淬火有很多特点,1.设备简单,投资少;2.操作容易,能解决大型零件 Preface The application of the principle of electrical contact surface heating to surface hardening of machine tool rails or other large parts is an invention and creation of the working class in the Great Proletarian Cultural Revolution. With this method of quenching the machine tool guide rail, its anti-abrasion and wear resistance have significantly improved. Electrical contact surface hardening has many features, 1. Equipment is simple, less investment; 2. Easy to operate, to solve large parts