我厂SH760A轿车680型汽油机的凸轮轴和摇臂这一对摩擦副是发动机上的关键零件,自一九五八年试制以来,一直存在着不同程度的早期拉毛和磨损问题,长期以来质量不够稳定,成为该机的老大难问题。一九七四年下半年,在厂党委的支持下,工人,干部和技术人员,破除迷信,解放思想,发扬了敢想、敢说、敢干和自力更生、艰苦奋斗的革命精神,学习了兄弟单位的先进经验,对这对摩擦副采用尿素气体软氮化表面处理,并做了台架和装车 Our factory SH760A sedan 680 gasoline engine camshaft and rocker arm pair of friction pair is a key part of the engine, since the trial in 1958, there have been varying degrees of early hair and wear problems, the long-standing quality is not enough Stable, become the crux of the plane problems. In the second half of 1974, with the support of the party committee of the factory, workers, cadres and technical personnel broke away from superstition and emancipated their minds and carried forward the revolutionary spirit of dare to think, dare to say, dare to be self-reliant and hardworking and learned from brothers The unit’s advanced experience, the pair of friction using urea gas nitrocarburizing surface treatment, and made a bench and loading