模具是现代化大量生产之工具。广泛地采用锻模及冲模生产不仅能使生产率大大提高与改善零件的质量,而且可减少零件之机械加工余量,节约大量钢材。模具钢用量之增加意味着工业生产率之提高。在大跃进时代的今天,无疑将使模具钢之用量有惊人的增加。众所周知,模具钢用量最大的是汽车、拖拉机等进 Mold is a modern mass-production tool. Widespread use of die and die production not only can greatly improve productivity and improve the quality of parts, but also reduce the machining allowance of parts, saving a lot of steel. Die steel consumption increased means that the improvement of industrial productivity. In the era of the Great Leap Forward today, will undoubtedly make a significant increase in the amount of die steel. As we all know, the largest amount of die steel is the car, tractor and other into