我厂锻工车间广大革命职工在总结多年的胎模锻造经验的基础上,大胆革新,实现了在自由锻锤上固定模顶镦后桥轴。过去是在750公斤空气锤上采用自由锻和胎模锻工艺方法,锻件下料重达30公斤,加工余量及劳动强度较大,生产效率很低,每个锻件需锻打200锤以上才能锻成。工艺过程见表1。后来,总结了经验,解放了思想,在3吨蒸汽锤上采用固定模顶镦的新工艺,使产量由过去的每班28件提高到110件,还减轻了势动强度,又作到安全生产,而 On the basis of summing up many years of experience in tire forging, the vast number of revolutionary workers in the forging workshop of our factory boldly innovated and realized the axle of fixed axle after the upsetting of die in the forging hammer. In the past, 750kg air hammer was used for free forging and tire forging process, the forging material weighed 30kg, the machining allowance and labor intensity were large, and the production efficiency was very low. Forged. Process shown in Table 1. Later, the experience was summarized, the idea was liberated, a new technology of fixed die upsetting was adopted on the 3-ton steam hammer, the output was increased from 28 in the past to 110, and the potential strength was reduced and safety was also achieved Production, however