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简述800 MN大型模锻液压机上巨大尺寸、重要零件的极限设计制造,特别是机架C形板、主工作缸、活动横梁中梁等的极限设计技术以及在铸造、锻造、焊接方面的极限制造技术。设计过程中对C形板进行优化设计,使过渡圆角处的最大应力由原来的456 MPa降为237.1 MPa;对主工作缸的局部进行设计优化,使进液孔内壁的最大主应力和等效应力分别降低到192和217 MPa,应力值降低幅度超过40%。经过国家科技重大专项课题组联合技术攻关,成功解决了大尺寸重要零件极限设计制造关键技术的难题。
Brief description on the design and manufacture of large size and important parts of 800 MN large forging hydraulic press, especially the limit design technique of C-plate, main working cylinder and movable beam middle girder, as well as the limits of casting, forging and welding Manufacturing Technology. During the design process, the C-shaped plate is optimized so that the maximum stress at the transition fillet will be reduced from 456 MPa to 237.1 MPa. The design and optimization of the main part of the main cylinder will make the maximum principal stress of the inner wall of the liquid inlet hole The effective stress is reduced to 192 and 217 MPa, respectively, and the stress is reduced by more than 40%. After the national science and technology major project group joint technical research, the successful solution to the large size of the critical parts of the design and manufacture of the key technology problems.