我公司12500t自由锻造水压机是60年代初由我公司自行设计制造的。几十年来,它为我国的轧钢、冶炼、电站、航天等工业装备提供了数以万计的大型锻件。1997年初由于该水压机充液阀主弹簧碎裂,碎块落进主缸的柱塞与导套之间,形成研伤。在高压水的强烈冲击下,三个铜质导套内孔表面被拉出数十条 My company 12500t free forging hydraulic press is designed and manufactured by our company in the early 60s. For decades, it has provided tens of thousands of large forgings for our country’s rolling, smelting, power station, aerospace and other industrial equipment. At the beginning of 1997, due to the main spring of the hydraulic filling valve was broken, the fragments fell into the gap between the plunger of the master cylinder and the guide sleeve to form a wound. Under the intense impact of high pressure water, the inner surface of the three copper guide bores is pulled out by dozens of pieces