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油环镀铬的困难在于油孔的周围部分在一般的工艺条件下沉积不上铬层。到目前为止,国内许多活塞环的生产厂都在寻找一种比较简便、可靠的批量生产的方法。 我厂从1979年开始,在油环镀铬方面做了一些试验,今年已进行了约二万片的小批量生产。在品种方面,做了普通油环和螺旋弹簧镀内沟槽的油环两种。这里,仅就油环的外园、内沟的镀铬方法作些介绍。
The difficulty of chrome ring oil is that the surrounding portion of the oil hole does not deposit chrome layer under normal process conditions. So far, many domestic manufacturers of piston rings are looking for a simple and reliable method of mass production. Since 1979, our factory has done some experiments in chrome oil circle. This year, we have conducted small batch production of about 20,000 pieces. In terms of variety, made of ordinary oil ring and spiral spring plating groove within the oil ring two. Here, only on the oil ring outside the park, the chrome groove method for some introduction.