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近年来国内外对工模具用钢广泛采用渗硼工艺。渗硼能使钢铁表面获得高硬度、高耐磨性和抗酸蚀(除硝酸外)以及红硬性等效果。按照介质的不同,渗硼可分为气相、液相和固相三种。液相和固相渗硼的设备比较简单,操作方便。目前国内多数单位采用液相渗硼工艺。渗硼剂性能用硼砂加碳化硼或硼砂加碳化硅的液相法,在熔融状态下反应如下
In recent years, extensive use of boron steel mold tooling at home and abroad. Boronizing steel surface can get high hardness, high wear resistance and acid corrosion (except nitric acid) and red hardness and other effects. According to different media, boronizing can be divided into gas, liquid and solid phase three. Liquid and solid phase boronizing equipment is relatively simple and easy to operate. At present, the majority of units using liquid boronizing process. Boronizing agent performance with borax plus boron carbide or borax plus silicon carbide liquid phase method, in the molten state reaction is as follows