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TheProcessandtheWaysofPreventingDefects
abouttheInvestmentCasting
YANGShu-chuan,SHEYong-wei
NingxiaUniversity,Yinchuan750021,China
Abstract Investmentcastingwascalledwaxlostcasting.too.Ithadalonghistoryinourcountry.Itwasaspecial
castingwaywhichwastomakemodelwithcombustiblematerial,thencoatfive-resistantmaterial.Afteritwas
hardened,modelwasmeltedanddischargedoutofpattern,sogetcastingway.Becausecastingpiecehadhighdimension
precisionandfacesmoothfinish,itwascalledoPrecisionInvestmentCastingpThispaperdetailedtheworkprocessof
theinvestmentcastingandanalyzedthecausesofcastdefectsandthewaysofpreventingdefectsastocontrol
processandqualityformanufacturersb
Keywords metalscienceandmetaltechnicstheinvestmentcastingsummarZprocessdefects.
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