The origination of some defects encountered in aluminum wheel for the Peugeot car, such as crack, porosity, gas hole, was analyzed.
对某铝轮有限公司生产的标致汽车铝轮所产生的裂纹、疏松、 气孔等的原因作了分析。
The defects of sand-slag and gas-hole are absent in the water-cooling-sprayer whose surface is clean and qualified rate is more than 90%.
结果表明：铸件表面光洁，无砂眼、气孔等缺陷，铸件合格率高于90%；
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