七、大型锻件的锻造比大型锻件的锻造比,由产品技术条件或国标、部标、厂标来规定。为了消除缺陷、确保质量,设计部门往往对一些承受重载荷的零件提出很大的锻造比要求,如发电机转子轴等,其总锻造比都在6以上。在锻造过 Forging of large forgings Forgings of large forgings than the product of the technical conditions or national standard, the Ministry of superscript, the factory standard to provide. In order to eliminate defects and ensure quality, the design department often puts forward large forging requirements on some heavy-load bearing parts, such as the generator rotor shaft and the like, and the total forging ratio is above 6. Forged over