該厂在产品針织用机針上,淬火工序要求无氧化現象及黑皮,淬火后即能装配出厂。他們因陋就簡,自力更生,用一套很簡单的設备实現了保护气体淬火,效果很好。这里簡单介紹如下,供参考。 The plant knitting needles in the product, the quenching process requires no oxidation and black skin, after quenching can assemble the factory. Because of their simplicity, self-reliance, using a very simple set of equipment to achieve a protective gas quenching, the effect is very good. Here is a brief introduction as follows, for reference.