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作者首先指出传统的淬火介质存在的问题,然后详细介绍了新型无毒淬火介质的生产工艺和使用效果。这种淬火介质是由水玻璃粉末与矿化剂(NaCl,
The author first points out the problems of the traditional quenching medium, and then introduces in detail the production process and the use effect of the new non-toxic quenching medium. This quenching medium is made of water glass powder and mineralizer (NaCl,