在批林批孔运动中,我厂广大职工通过批判林彪、孔老二的“上智下愚”和“生而知之”等谬论,进一步破除了迷信,解放了思想,为解决大中型铸铁件浇冒口、芯铁清理的笨重体力劳动,在厂党委领导下,组织了以老工人为主体的三结合攻关组。他们深入现场,边组织调查,边进行试验,没有材料自己找,受到挫折不灰心,经过反复试验改进,终于试制成功了一台500公斤米移动式多向气动锤,用于清理大中铸铁件浇冒口。经生产使用,效果良好。用机械代替手工清除铸件浇冒口,既减轻了劳动强度,又提高了生产效率。革新前后效果对比如右表: During the campaign of criticizing Lin and criticizing Confucius, the vast number of workers and staff of our factory further broke away from superstition and liberated his thoughts by criticizing the absurd arguments of Lin Biao and Kong Laoshi’s “Shang Zhi Xia Yu” and “Born to Know” Riser, core iron clear bulky manual labor, under the leadership of the factory party committee, organized with the old workers as the main three combined research group. They went deep into the scene and conducted investigations while organizing investigations. Without materials to look for themselves, they did not lose heart because of setbacks. After repeated tests and improvements, they finally succeeded in trial production of a 500-kilogram meter mobile multi-directional pneumatic hammer for cleaning large and medium-sized cast iron pieces Riser After production, the effect is good. Mechanical replacement of castings by hand to eliminate riser, not only reduce the labor intensity, but also improve production efficiency. Before and after the effect of innovation such as the right table: