TD工艺处理（TDprocessprocessing）.pdf

该【TD工艺处理（TDprocessprocessing） 】是由【青山代下】上传分享，文档一共【7】页，该文档可以免费在线阅读，需要了解更多关于【TD工艺处理（TDprocessprocessing） 】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。:..TD工艺处理(TDprocessprocessing)DiscussionondeformationquantityindieTDprocesspanyNewsDiscussionondeformationquantityindieTDprocessChengdugoldproductsscienceandTechnologyDevelopmentCo.,:TDandheattreatmentwillbedeformed,ofcourse,municationtominimizedeformation,,stillcannoteffectivelyachievetheprecisecontrolofmolddeformationtodecimillimetre(),-calledmetalheattreatmentisinthemetalheatingtoacertaintemperature,insulationforacertaintime,:temperature,time,,.,infiltratingmetal(relative:..tocarburizing,boridingandnitridingonlybynonmetals).,willhaveacarboncontentofthemetalworkpieceplacementofboraxmoltensaltvanadium,niobium,titanium,chromiumandothermetalatomsinthemetalatomandtheworkpieceforboraxinmoltensaltofcarbonatomsinthechemicalreaction,,-11,,themoldisactuallyintheeggshellstate-shellishard(TDlayerofhardnessofmorethan3000HV),thecoreisverysoft(metalworkpiecematrixhardnessof35-52HRC).Intheproductionprocess,inordertogetahigherhardnessofthesurfaceTDlayertosupportrigidity,itmustbewithworkpiecesupto1010-1030DEGCtoquenchingandtempering,,,wemustclearlyrealizethatthereisnomold,afterthecompletionofTD,,,thephasechangewill:..occur,,,thepursuitofthesmallestdeformation,itiseachmanufacturer,eachkindofheattreatmentmethod,,,ithasbeenprovedthatthemainfactorsaffectingTDtreatmentare:(1)diedesign;Dieshape,wallthickness,',thesmallertheshape,thesmallerthelengthtodiameterratio,thesmallerthedeformation.(two)materials:1,position1)thecontentsofkeyelementsCr,,:..hardenabilityis,thesmallerthedeformationofmetalmatrixis,andthelowerthehardenabilityis,,,),thesmallerthesegregation,,thedeliveryofmaterials:bars,plates,forgingsthreekindsofstateofdeliveryofdifferentheattreatmentmethods,materialfiberdirectionisdifferent,theheattreatmentprocessofdeformationarealsodifferent.(three)theheattreatmentmethodbeforeTD;,,-11materialsarequenchedat1080-1020DEGC,gasquenchingoraircooling,andtemperedat510-,returnthreetimesevery2to4hours.:..(four)TDprocess1)clamping:accordingtotheshapeofthemold,geometricsize,lengthtodiameterratio,wallthicknessandotherfactors,)preheatingtemperature:reasonablepreheatingtemperaturecannotonlyensurethedeformationofthemold,,inouropinion,)outofthefurnaceattitude:out,intothefurnaceattitudecontrol,canreducethemoldinthecrucibleandsaltbathresistance,thesmallertheresistance,)mixinginthefurnace:)coolingmodeandspeed:,thesmallerthedeformationis,'scoretechnicalsecrets,orusersonlycareabouttheresults,donotcareabouttheprocess.:..Therefore,ontrolprocess,,:(1)molddesign:fromtheshape,size,lengthanddiameterratio,wallthicknessandinsertmoldsegments,asmuchaspossibleintothemoldintheprocessofTDdeformation.(two)material:plywithGB/T1299-,isothermalspheroidizingshallberequiredandatwolevelinspectionreportshallbeissued.(three)heattreatment:thechoiceofhighquenchingback,coolingmedium,thebestchoiceofgasquenchingoraircooling;(four)throughtheprocesstestmethod:reservedsizetolerancerequirementsstrictlyminoritydiescanprocessexperimentofTDtreatmentonthesamefurnacemoldmaterial,moldtestandsummaryofdeformationanddeformation,ordingtothedeformationtodeformationinaprocessbymeansofreservesizepensateforthemold,,,theTDprocess,becausethemolddeformationofmanyincentives,:..andsomeprocessesareTDmanufacturersarenotinvolved,infact,,thedeformationofmoldintheprocessofTDthefactisdifficulttoprecisedecimillimetre(),foreachkindofmetalmaterialisnotapreciseformulaforgeneralandalsofailedtoestablishamathematicalmodeltoguidetheproductionandpracticeofourdiscipline,whichisthefeatureofmetalmaterial,,eveninafairlymitmenttoensureaprecisevalueofmoldintheprocessofTDdeformationcontrol,atleastnottopromise(),WemadeCr12MoV(pany,steelshares,Fushunspecialsteel,PanzhihuasteelproductsdevelopedthetheGreatWall),ifonlyinthesamefurnacematerialthroughprocesstest,,itisneverplainsailing,.