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1、Chapter11Metal-CastingProcesses第11章金屬鑄造工藝11.1Introduction簡介11.2SandCasting砂型鑄造11.3Shell-moldCasting殼型鑄造11.4Expendable-PatternCasting(LostFoam)一次模鑄造（消失泡沫）11.5Plaster-MoldCasting石膏型鑄造11.6Ceramic-MoldCasting陶瓷型鑄造11.7InvestmentCasting熔模鑄造11.8VacuumCasting真空鑄造11.9Permanent-MoldCasting永久型鑄造11.10
2、SlushCasting凝殼鑄造11.11PressureCasting壓力鑄造11.12DieCasting壓模鑄造11.13CentrifugalCasting離心鑄造11.14SqueezeCastingandSemisolid-MetalCasting積壓鑄造和半固態(tài)金屬成型11.15CastingTechniquesforSingle-Crystalcomponents單晶零件的鑄造技術(shù)11.16RapidSolidification(AmorphousAlloys)快速凝固（非晶和金）11.17InspectionofCastings鑄件檢驗11.18Melti
3、ngPracticeandFurnaces熔化操作和熔爐11.19FoundriesandFoundryAutomation鑄造廠與鑄造自動化11.1INTRODUCTIONThefirstcastingsweremadeduringtheperiod4000-3000B.C.,usingstoneandmetalmoldsforcastingcopper.Variouscastingprocesseshavebeendevelopedoveralongperiodoftime,eachwithitsowncharacteristicsandapplication,tome
4、etspecificengineeringandservicerequirements.Carburetor:化油器,engineblock:氣缸體,plumbingfixture:衛(wèi)生潔具,gunbarrel:槍筒，炮筒,fryingpan:煎鍋,hydraulicturbine:液力渦輪Twotrendsarecurrentlyhavingamajorimpactonthecastingindustry.Thefirstiscontinuingmechanizationandautomationofthecastingprocess;thesecondistheincr
5、easingdemandforhigh-qualitycastingswithclosedimensionaltolerancesandnodefectsdimensionaltolerance:容許尺寸公差TABLE11.1SummaryofCastingprocesses,TheiradvantagesandLimitationProcessAdvantagesLimitationsSandAlmostanymetalcast;nolimittosize,shapeorweight;lowcoolingcost.Somefinishingrequired;somewha
6、tcoarsefinish;widetolerances.ShellmoldGooddimensionalaccuracyandsurfacefinish;highproductionratePartsizelimited;expensivepatternsandequipmentrequired.ExpendablepatternMostmetalscastwithnolimittosize;complexshapes.Patternshavelowstrengthandcanbecostlyforlowquantities.PlastermoldIntricatesha
7、pes,gooddimensionalaccuracyandfinish;lowporosity.Limitedtononferrousmetals;limitedsizeandvolumeofproduction;moldmakingtimerelativelylong.CeramicmoldIntricateshapes;closetoleranceparts;goodsurfacefinish.Limitedsize.InvestmentIntricateshapes;excellentsurfacefini
