水压机工作缸缸底裂纹分析及修复０６６００４秦皇岛市燕山大学赵长财第一重型机械集团公司孙雅权液压缸是水压机中的重要零部件，在设计、使用不当时，经常发生破坏现象。一重集团公司的一台１２５００ｋＮ自由锻水压机中间缸，在生产中产生裂纹，并迅速环向扩展（图１）... Hydraulic cylinder cylinder bottom crack analysis and repair 066004 Qinhuangdao City Yanshan University Zhao Chang Choi First Heavy Machinery Group Company Sun Yaquan hydraulic cylinder hydraulic press is an important component in the design, improper use, destruction often occurs. A heavy group company 12500kN free forging hydraulic intermediate cylinder, cracks in the production, and rapid expansion to the ring (Figure 1) ...