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为降低ＣＡ６１０２发动机气门挺杆的废品率，介绍针对铸件六窝处凸瘤、合模处有沟纹及粘砂严重等缺陷所采取的质量控制．其结果是废品率由原２１．２４％降到了１１．５５％．
In order to reduce the rejection rate of CA6102 engine valve lifter, the quality control adopted for defects such as the tumor at the sixth nest of the castings, the groove and the sticky sand at the clamping part is introduced. As a result, the reject rate dropped from 21.24% to 11.55%.