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一、引言 内撑簧铸铁油环（以下简称内撑油环）在国内是最近几年发展的活塞环新产品,但目前生产中工艺不够成熟,有待进一步试验改进,探索较为经济合理的工艺。我厂在研制该环方面做了一些工作,现小结于下。 二、镀覆方法的探索 内撑油环环体外无刮油刃（简称油刃,下同）要求镀铬,铬层厚度一般为0.1～0.2毫米,油槽底面无具体镀覆要求。
I. INTRODUCTION The sprung cast iron oil ring (hereinafter referred to as the oil spreader) is a new piston ring product developed in China in recent years. However, the current production process is not mature enough to be further tested and improved to explore a more economical and reasonable process. I plant in the development of the ring has done some work, are summarized in the next. Second, the exploration of plating method Inner ring oil ring without oil scraper (referred to as the oil edge, the same below) requires chrome, chrome layer thickness is generally 0.1 to 0.2 mm, the bottom of the tank without specific plating requirements.