我队在维修6250型柴油机和解放CA-10B 型发动机过程中,经过设计、改革,对发动机的主轴瓦、连杆轴瓦、连杆小头铜套等零件采用了机械镗削。实践证明,采用机械镗削后,不仅保证了质量,提高了精度,而且改革了人工拂刮轴瓦的繁重操作,大大地提高了工作效率。经镗削后的6250型柴油机连杆铜套锥度小于0.005mm,光洁度达▽7。解放CA-10B 主轴瓦经镗削 During the process of repairing the 6250 diesel engine and liberating the CA-10B engine, our team adopted mechanical boring to design and reform the main bearing bush, connecting rod bearing bush and connecting rod small copper bush of the engine. Practice has proved that the use of mechanical boring, not only to ensure the quality and improve the accuracy, but also to rebuild the heavy manual flicker pad operation, greatly improving work efficiency. After boring the 6250 diesel engine connecting rod taper is less than 0.005mm, finish ▽ 7. Liberation CA-10B main bearing boring