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利用Niyama判据对重力铸造铝合金摩托车车轮进行了缩孔、缩松预测。根据Niyama判据式G/槡R探讨了影响缩孔、缩松的因素,并根据这些影响因素采取相应的工艺措施,消除或减轻了铸件的缩孔、缩松倾向。
The shrinkage and shrinkage prediction of gravity cast aluminum alloy motorcycle wheel was carried out by Niyama criterion. According to the Niyama criterion G / 槡 R, the factors that affect the shrinkage and shrinkage were discussed. According to these factors, corresponding measures were taken to eliminate or reduce the shrinkage and shrinkage tendency of the castings.