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用金相方法,分析了ZG270—500中空轴铸造裂纹的性质,产生原因及影响因素,并提出相应措施,为该铸件的生产提供参考。
The metallographic method was used to analyze the properties, causes and influencing factors of ZG270-500 hollow shaft casting cracks and to provide corresponding measures to provide references for the production of the castings.