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EQ6100发动机用刮片油环是由两个刮片和一个衬环组成的。刮片用65锰钢带制成,经外圈镀铬、脱氢后,再磷化处理上下两个表面,以达到防锈和抗磨损的目的。衬环用 T8A钢制成,经机械加工后,再进行磷化处理。刮片油环过去采用锌锰盐中温磷化工艺。磷化膜呈灰色,结晶粗大,膜厚而疏松,结合力差容易脱落,耐腐蚀性能差,因此不能满足生产要求。我们与轴瓦厂合作,研究成功了一种新的磷化工艺。从1984年4月在生产线上进行大量
EQ6100 engine scraper oil ring is composed of two scrapers and a lining ring. Scraper made of 65 manganese steel, the outer ring chrome, dehydrogenation, re-phosphating the upper and lower surfaces to achieve the purpose of rust and abrasion. Lining ring made of T8A steel, after machining, and then phosphating. Blade oil ring used in the past zinc-manganese salt temperature phosphating process. Phosphate film is gray, coarse crystals, the film thickness and loose, easy to fall off with poor adhesion, poor corrosion resistance, it can not meet the production requirements. We cooperate with the bearing mills to study the success of a new phosphating process. From April 1984 on the production line a lot