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气体软氮化是为解决液体软氮化所造成的公害问题,在七十年代发展起来的新工艺。与其它热处理相比,它具有处理温度低、处理时间短、热处理变形小等优点。目前,国外在能源和公害防治方面的矛盾突出,使这项新工艺获得迅速的发展。能够进行气体软氮化的材料已扩大到钢、氮化钢、工具钢、高速钢、模具钢、不锈钢、普通铸铁、合金铸铁、球墨铸铁、铁基粉未冶金零件、铸造硬质合金、钛等。因此,在国外把它作为节能和无公害热处
Gas nitrocarburizing is a new process developed in the seventies to solve the problem of pollution caused by liquid nitrocarburizing. Compared with other heat treatment, it has the advantages of low processing temperature, short processing time and small heat treatment deformation. At present, the contradictions in the prevention and control of energy and pollution abroad are prominent, which have led to the rapid development of this new technology. Materials capable of gas nitrocarburizing have been expanded to include steel, nitrided steel, tool steel, high speed steel, tool steel, stainless steel, normal cast iron, alloyed cast iron, ductile iron, iron-based powder metallurgy parts, cast cemented carbide, titanium Wait. Therefore, in foreign countries as a heat and energy-saving pollution-free