摘要消失模铸造由于具有精确成型、近无余量的特点，符合铸件轻量化、精确化的发展趋势，且其然而由于生产界对其认识还不够深刻，管理还不到位，给新技术的应用带来了麻烦，有些铸造缺陷层出不穷，防不胜防。对于一些含有扁平内孔的铸件，由于内孔处于白模的内表面，使得此处砂型的紧实性等往往不如白模的外表面砂子，最终成形铸件的质量不够理想。本次研究的重点就在于采取措施使得消失模铸件不仅外表面尺寸精度高，其内孔尺寸精度同样也要达到一定水平。首先，消失模铸件的质量和模具的表面处理有很大的关系。如，消失模表面涂料的选用合适与否与最终制成的成品件的质量有重大的关系。其次，消失模铸造砂型的选择、砂子的紧实度和铸件内孔的砂处理等都与最终成品的质量有很大的关系。关键词：消失模扁平内孔涂料AbstractBecauseLostFoamCasting（LFC）hasthecharacteristicsofprecisionforming,nearlynounwanted,conformstothedevelopmenttrendofthelightweight,accuratecasting,andithasunlimitedmaterial,lowcost,goodquality,smoothsurface,castingcharacteristicsofcompactstructure,canrealizelarge-scalemassproduction,soithasbeenwidelyused.However,duetotheunderstandingofmanufacturingindustryforitisnotenough,managementdoesnotreachthedesignatedposition,alsobroughttroubletotheapplicationofnewtechnologies,andsomecastingdefectsemergeinendlessly,small-scaleoperations.Forsomecastingcontainingplatinnerhole,becausetheinnerholeisintheinnersurfaceofdie，it'smakesheresuchassandcompactabilityoftennotbetterthantheoutsidesurfaceofthesand,eventuallyformingthequalityofthecastingisnotideal.Focusofthisstudyistotakemeasurestomakemoldcastingsurfacesizenotonlyhighprecision,whichholesizeaccuracyaswellastoachieveacertainlevel.Firstofall,thequalityofdiecastingandmouldsurfacetreatmenthasalottodo.,suchas,theselectionofmoldsurfacecoatingisproperandeventuallymadethequalityofthefinishedproductshaveasignificantrelationship.Secondly,thechoiceofthelostfoamcastingsandmold,thecompactnessofthesandandcastingsandofinnerholeprocessingandfinalqualityofthefinishedproducthasalottodo.Keywords：LFCTheflatinnerholesurfacecoating目录HYPERLINK\l"_Toc106266683"摘要PAGEREF_Toc106266683\h1HYPERLINK\l"_Toc106266684"AbstractPAGEREF_Toc106266684\h2HYPERLINK\l"_Toc106266704"第一章绪论5HYPERLINK\l"_Toc106266686"课题研究的来源及研究方向5HYPERLINK\l"_Toc106266688"1.1.1课题来源及意义5HYPERLINK\l"_Toc106266689"1.1.2本研究的主要方向PAGEREF_Toc106266689\h5HYPERLINK\l"_Toc106266687"消失模铸造技术介绍5HYPERLINK\l"_Toc106266688"5