焊接专业毕业设计----加热槽的设计

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1、摘要本次设计的加热槽槽体是加热及搅拌沥青的专用容器。以通入夹套中的高温蒸气为热源加热沥青。设计产品普遍应用于石油化学工业、建筑业等行业上。该设计中详细制定了加热槽的制作工艺和封头冲压模具的设计。根据压力容器的标准，此加热槽属于II类压力容器。其设计、制造、检验和验收应符合GB150－98《钢制压力容器》的规定。16MnR钢是制造压力容器的专用钢。16MnR的硫、磷含量低，抗拉强度、延伸率、冲击韧性高。因此，16MnR的力学性能和工艺性能良好。除环境温度很低或钢板厚度很大时，冷裂纹倾向较大以外，不易产生其它种类的裂纹。Q235B钢的含碳量低，虽然强度不高，但塑性和冲击韧

2、性很好，焊接性优良。一般不会因焊接而出现严重的淬硬组织。通过分析母材的各种性能及本产品的结构特点，编制出适合本产品的生产工艺流程。主要是筒节、封头的加工工艺及加热槽槽体的总装配焊接工艺。制定下料及其成形工艺，填写零件加工工艺过程卡；制定装配工艺及焊接工艺，填写焊接工艺卡；制定焊后加工工艺。制定夹套的翻边、翻孔工艺。在制作封头时，还需根据封头的尺寸计算出封头冲压模具上模及下模的具体尺寸，制作冲压模具。结合本产品的技术要求，采用无损探伤和水压试验进行检验。最后，为了防止产品生锈需对产品进行涂漆。关键词：加热槽；焊接工艺；夹套；冲压模具42NoAbstractTheheat

3、ingtroughbodyofthistimedesignistheappropriationcontainerwhichheatsandmixesblendtheasphalt.Takepassesoverintheclampcoverthehightemperaturesteamtoheatuptheasphaltastheheatsource.Thedesignproductgenerallyappliestoprofessionandsooninpetrochemicalindustry,architectureindustry…etc.Inthisdesig

4、nindetailformulatedtothemanufacturecraftoftheheatingtroughandthedesignoftheheadofthetroughrammingmold.Accordingtothestandardofpressurecontainer,thisheatingtroughisbelongedtoIIkindofpressurecontainer.Itsdesign,manufacturing,examinationandacceptanceshouldconformtotheprovisionofGB150－98《St

5、eelssystempressurecontainers》.The16MnRsteelistheappropriationsteelwhichmakespressurecontainer.Thecontentofsulfur,phosphorusin16MnRislow,thetensilestrength,theelongationratioandpoundsattenacityarehigh.Therefore,mechanicsfunctionandcraftfunctionwith16MnRaregood.Inadditiontotheenvironmentt

6、emperatureisveryloworwhenthesteelplatethicknessisverybig,greatlyoutsidethecoldcrackiseasytocreation,don'teasilycreationothercategoriescrack.TheQ235Bsteelcontainsamountofcarbonlow,althoughthestrengthisn'thigh,plasticityandresilienceareverygoodandtheweldabilityisfine.Generallywillnotappea

7、rstheserioushardorganizationbecauseofweld.Throughanalyzesvariousfunctionoftheparentmetalandthestructurecharacteristicsofthisproduct,drawuptheproductiontechnicalprocesssuitedthisproduct.Mainlyistheprocessingcraftofthetubestanza,theheadandthefinalassemblyweldingcraftoftheheatingt