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目前,在700～940℃温度下进行热处理,一般都使用氯化钠、氯化钾和氯化钡的混合盐。为防止这种盐浴引起加热钢件脱碳,必须定期加入硼砂、晶体硅、炭粉或其他脱氧剂。但是,加入这些脱氧剂,并不总能消除脱碳。本文对可在一定范围内应用的有效复合脱氧剂进行了研究。此外,试验了在950～1050℃下加热使用的无脱碳盐浴的成份,可应用于某些模具钢及其它中合金钢。还研究了用于高温(1050～1300℃)的无脱碳混合盐,使用效果良好,
At present, heat treatment is carried out at a temperature of 700 to 940 DEG C, and a mixed salt of sodium chloride, potassium chloride and barium chloride is generally used. In order to prevent this salt bath from decarburization heating steel, borax, crystalline silicon, carbon powder or other deoxidizer must be added regularly. However, adding these deoxidizers does not always eliminate decarburization. In this paper, an effective composite deoxidizer can be used in a certain range. In addition, the composition of the decarburization-free bath heated at 950 to 1050 ° C was tested for use in some mold steels and other medium alloy steels. Also studied for high temperature (1050 ~ 1300 ℃) without decarbonization mixed salt, the use of good results,