HH902A钢铁常温系列发黑新工艺

New Technique of Normal-Atmosphere-Temperature Blackening of HH902 Iron and Steel

本文主要从节能角度介绍和论述ＨＨ９０２Ａ钢铁常温发黑新工艺的基本流程和实施效果。对新老发黑技术的应用、质量、效益和环境保护诸方面，通过生产线生产检验，得到一系列完整数据，为机械行业节能降耗提供了一项有效的新技术。

From the viewpoint of energy conservation, thispaper introduces and explains lhe basic procedures and theactual effect of the new technique of normal-atmosphere-temperature blackening of HH902A iron and steel. And itprovides, through the tests of the work-line, a series ofcomplete data of the application, quality, efficiency and theenviorment-protection between the new and the old tech-niques of blackening, thus it offers the machinery industryan efficient method of energy conservation and cost-reduc-tion.