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火焰表面热处理
met.
flame heat treatment
(【技】通过喷嘴将火焰喷射到工件表面上,将其迅速加热到高温,然后再以不同的冷却速度冷却的热处理工艺。一般多用于工件的表面淬火。火焰表面热处理的火焰温度高,故加热速度快,较为经济。同时它还具有设备简单、灵活性较大、可对大型工件实行表面淬火等优点。)
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