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一、前言 为了回收高速钢废料,生产质量高,成本低,材料消耗少的高速钢刀具,适应农业机械生产高速度发展的需要,我们组成了以工人为主体,有技术人员和革命干部参加的三结合技术革新小组,在吸取过去经验的基础上,从一九七一年开始,利用高速钢废刀具作原料,进行精密铸造高速钢刀具实验。经一年多努
I. INTRODUCTION In order to recover high-speed steel scrap, produce high-speed steel cutting tools of high quality, low cost and low material consumption, and to meet the needs of high-speed development of agricultural machinery production, we have formed a group consisting of workers as the main body, technicians and revolutionary cadres Based on its past experience, starting from 1973, the three-pronged technical innovation group used high-speed steel scrap tools as raw materials for precision casting high-speed steel cutting tool experiments. After a year of hard work