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用一个或几个不移动的火焰喷嘴,对急速旋转(75～150转/分)的工作表面作一定时间的加热,然后再进行快冷的过程叫旋转火焰淬火法。这种方法可用于曲轴和齿轮的淬火。我厂自1964年起已用于齿轮联轴器中的内齿盘(45钢)表面淬火。对于中小模数碳钢齿轮,齿部容易全部淬透,脆性大,不能承受大的力。因此,我们对内齿盘淬火后的硬度要求是:HRC 35～40。现
With one or several non-moving flame nozzle, the rapid rotation (75 ~ 150 rev / min) of the working surface for a certain period of time heating, and then the process of rapid cooling is called rotary flame quenching method. This method can be used for crankshaft and gear quenching. Since 1964, our factory has been used for surface hardening of internal gear (45 steel) in gear couplings. For small and medium-modulus carbon steel gears, tooth all easily hardened, brittle, can not afford large forces. Therefore, the hardness of our internal gear after quenching is: HRC 35 ~ 40. Now