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我厂于71年开始生产 CA—10型发动机。当时球铁曲轴毛坯是由别厂供应的,由于质量和数量不能满足生产需要,在党和上级正确领导下,我们建立了铸铁车间,并且因陋就简,自己开始生产 CA—10曲轴等球铁铸件。经过近一年不断摸索,初步总结出适合本厂情况的生产工艺,73年1～8月,我厂共铸出 CA—10曲轴246条,其中因含硫过高报废36条,合格率达85.3%。现将其工艺简介如下:
Our factory started producing CA-10 engine in 71 years. At that time, the ductile iron crankshafts were supplied by other factories. Due to the quantity and quality of the ductile iron crankshafts, the cast iron workshop was established under the correct leadership of the party and the superior and, because of its simplicity, started to produce ductile iron castings such as the CA-10 crankshaft. After nearly a year of continuous exploration, initially summed up for the factory conditions of the production process, 73 years from January to August, I plant a total of 246 crankshaft CA-10, of which 36 due to high sulfur scrap, pass rate of 85.3%. Now the process is as follows: