我厂生产的2g5柴油机,每台需4个气门下弹簧座。过去,气门下弹簧座由φ40毫米的圆钢切削而成,每加工一件需要9.5分钟,单件净重0.01公斤,而下料定额需0.138公斤,不仅浪费原材料又浪费工时,刀具损耗也多。后来,我们在群众性的双革运动中,把气门下弹簧座由机械加工工艺改为冲压工艺,大大提高了生产率和技术经济效果。 I plant the production of 2g5 diesel engine, each need four valve spring seat. In the past, under the valve spring seat cut by φ40 mm round steel, each processing a piece of 9.5 minutes, a single net weight of 0.01 kg, while the cutting material required 0.138 kg, not only a waste of raw materials and a waste of working hours, tool wear and tear are also more. Later, in the mass two-leather movement, we changed the valve seat under spring from a mechanical process to a stamping process, greatly improving productivity and technical and economic results.