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金属热加工工艺保护膜,是在高温和氧化气体环境中,金属表层和覆盖层接触区发生理化反应而生成的一层完全不透气的薄膜。由于这个反应的结果,使得保护膜具有综合保护效果,即保护金属不氧化、不脱碳、不发生金属表层合金元素烧损,同时在随后的热加工过程中又起润滑作用。这层工艺润滑剂有特殊性能,它能保证高温加热后金属表面的质量同切削加工或者在氩气环境中热加工后的表面质量一样。此外,在润滑特性上不仅不亚于最高效的工艺润滑剂,
Metal thermal processing protective film, is a layer of completely air-impermeable film generated by physical and chemical reaction in the contact area of the metal surface and the cover layer in a high-temperature and oxidizing gas environment. As a result of this reaction, the protective film has the comprehensive protection effect that the protective metal does not oxidize and does not decarburize, and the alloying elements in the metal surface do not burn out, and at the same time, it lubricates in the subsequent thermal processing. This layer of process lubricant has special properties that ensure that the quality of the metal surface after heating at high temperature is the same as the surface quality after machining or hot working in an argon atmosphere. In addition, the lubrication characteristics not only inferior to the most efficient process lubricants,