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1.概述 我厂生产的Y系列和YC系列电动机壳铸件,采用的是HT150牌号的灰铸铁,这种牌号的铸铁碳当量高,如果原生铁化学成分失控,很容易产生裂纹缺陷。电机壳铸件裂纹如图所示。
1. Overview The Y series and YC series motor case castings produced by our factory are made of HT150 grade gray cast iron. This kind of cast iron has high carbon equivalent. If the primary iron chemical composition is out of control, it is easy to produce crack defects. Motor housing casting cracks as shown.