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冲击淬火法是用高频,冲击电流、电子束、激光、等离子束等冲击能,把工件快速加热到淬火温度的淬火方法。应用最多的冲击淬火法是高频。在这种情况下,在几毫秒内(0.001～0.1秒)发出27.12兆赫的超高频,以完全矩形的脉冲感应加热工件,自冷淬火,淬火后不必回火。这种方法完全无公害,并且因淬火时间短,能量利用率高,符合成本低、省劳力的要求。
Impact quenching method is the use of high-frequency, impact current, electron beam, laser, plasma beam and other impact energy, the workpiece quickly heated to the quenching temperature quenching method. The most widely used impact quenching method is high frequency. In this case, an ultra-high frequency of 27.12 MHz is emitted within a few milliseconds (0.001 to 0.1 seconds), the workpiece is heated by a completely rectangular pulse induction, self-cooled and quenched without tempering. This method is completely pollution-free, and because of quenching time is short, high energy efficiency, in line with the low cost, labor-saving requirements.