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3500吨闭式双点压力机,是冲压汽车大梁的关键重型锻压设备之一。它的试制成功,具有重大战略意义。压力机的主要大型部件——机头、滑块、底梁,都是焊接结构件。与铸件相比,具有结构刚性好、重量轻、机械加工量小,容易制造等优点。与苏修同类产品相比,它的底梁结构刚性显著增加,冲压产品的精度大大提高。由于焊件重量大(最大的焊件毛坯重达180吨,零件材质含碳量在0.40％以上的有九种,计14吨),厚板件多,刚性大(板厚在100
3500 tons closed two-point press, stamping car beam is one of the key heavy forging equipment. Its trial success is of great strategic significance. The main components of the press - nose, slider, sill, are welded structural parts. Compared with the castings, with structural rigidity, light weight, small amount of machining, easy to manufacture and so on. Compared with the Soviet revision of similar products, the rigidity of its bottom beam significantly increased, greatly improving the accuracy of stamping products. Due to the heavy weight of the weldment (the largest part of the weldment weighs 180 tons, the material carbon content of more than 0.40% in nine, accounting for 14 tons), thick plate and more rigid (plate thickness of 100