我厂以前锻造18马力燃气机曲轴是采用自由锻造,每班只能锻一根至二根。但是通过了58年生产大跃进和整风运动,就开始进行半模锻试验。在厂党委和车间支部大力支持下在58年已经正式投入生产。这种办法不但质量好,而且效率也高,由原1～2根提高到最多达到44～68根,原材料由原113公斤降低到46～48公 Forging 18 horsepower gas engine crankshaft is free forging, each class can only be forged one to two. However, after 58 years of the Great Leap Forward in production and the rectification campaign, the semi-forging test was started. In the factory party committee and plant branch support energetically in 58 years has been officially put into production. This approach is not only good quality, but also high efficiency, from the original 1-2 up to reach 44 to 68, the original 113 kilograms of raw materials reduced to 46 to 48