如不镗缸和活塞没有拉伤的痕迹，应对活塞进行检查。仔细讲环槽中的炭清除。
If the cylinder is not going to be resized and the piston shows no signs of scoring, the piston should be checked. Carefully remove carbon from ring grooves.
在引进汽车发动机生产线上对高速半精镗、精镗缸孔的CBN刀具进行了切削对比试验。
The comparison tests of CBN cutters for high speed boring cylinder blocks are carried out on the introduced car engine production lines.
介绍了用镗滚压复合加工技术修复液压缸筒的过程，此法修复缸筒质量稳定，生产效率高。
This paper introduces the process of repairing hydraulic cylinder by using boring and rolling combined working technology, working quantity is steady and production efficiency is high in this method.
通过对扩镗后的缸筒壁厚、强度及刚度的验算，证明了废旧缸筒扩镗修复后再利用的可行性。
By checking the wall thickness, strength and stiffness of expanding bore cylinder, the article verifies the feasibility of return utilization of invalid cylinder after being expanded bore rehab.
油缸使用寿命若只考虑缸筒影响，提高2 ~3倍，镗削滚压工艺较磨削工艺效率提高3倍左右。
If there is only cylinder tank life impact, increased by 2 to 3 times the rolling technique of boring grinding efficiency over 3 times.
油缸使用寿命若只考虑缸筒影响，提高2 ~3倍，镗削滚压工艺较磨削工艺效率提高3倍左右。
If there is only cylinder tank life impact, increased by 2 to 3 times the rolling technique of boring grinding efficiency over 3 times.
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