“锻热淬火”即“锻造余热淬火”,它是将被加热的毛坯经锻造成形后,利用锻件的余热立即在高温状态下急速进行冷却。“锻热淬火”后进行高温回火即完成了锻件的调质工序。“锻热淬火”工艺是五十年代未新发展起来的“形变热处理”方法的一种,它是在稳定的奥氏体范围内形变后产生马氏体相变的高温形变热处理。 “Forging quenching” is “Forging afterheat quenching”, which is to be heated by rough forging shape, the use of forging the heat immediately in the high-temperature state of rapid cooling. “Forging quenching” high temperature tempering after the completion of the quenching and tempering process. The “forging quenching” process is one of the new “deformation heat treatment” methods developed in the 1950s. It is a high-temperature deformation heat treatment that produces martensitic transformation after being deformed in a stable austenite range.