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毕业设计（论文）外文翻译外文题目：Headprocessingtechnology译文题目：封头加工工艺2012年3月11日Headprocessingtechnology1.weldingprocess1.1weldingoperationOurfactorycommonweldingmethodsare:manualwelding,argonarcwelding,submergedarcwelding.(1)manualweldingismainlyusedforcarbonsteel3-6mmplatewelding.(2)submergedarcweldingtomorethan8mmcarbonsteelstainlesssteelsheetweldingmainly.(3)3-6mmstainlesssteelargonarcweldingwithweldingmainly.CommonlyusedstainlesssteelwireER304andER316Lsteelwire,commonlyusedtoJ422andJ507andJ426andJ427low-temperatureweldingconsumables.FluxofcarbonsteelusedistheHJ431,stainlesssteelcommonlyusedisHJ260,.Asaresultofweldingwirefluxcanbeeasilyaffectedwithdamp,storedintheinfrareddryingmachine,fluxHJ431andHJ260dryingtemperatureis250-300℃.WeldingwireJ422andJ350dryingtemperaturewere150℃and300℃Weldingprocessiscompletelyinaccordancewiththe"welding"execution,sheetthicknessdeterminestheweldingtoweldingordoublesidedarcweldinginwelding,aftertheweldseaminspection(RTXray)judgmentwithoutpores,cracksandotherdefects,suchasfoundintheabovedeficiencies,totherepair,untilthefilming.1.2weldingoperationstandard(1)weldingprocedurecardafterreceivingprocess,affirmtheprocesscardandphysicalmaterial,quantity,unitnumber,specifications,sizeinstructionnumberisconsistent,whetherthereisdebrisaroundthewafer,wafersplasheswhethercleanremoval,suchastreatmentisnotclean,willusethegrindingclean.(2)thereisnoweldingtestplate,groovecuttingqualitycanmeettherequirement,materialsurfacewithoutobviousdefects,suchasabnormalresponse.(3)accordingtothe"Regulations"weldingprocedurecardcheckofweldinggroovetypeanddimensionscorrespondto.(4)oneachsideofgroovesurfacegrinding,buttedgeoffsetisnotgreaterthanthe10%thickness,andnotmorethan1.5mm.(5)pointfixedthefirstweldlayerterminalweldinglengthnotlessthan50mm,arcboardspecificationsshouldbe150*150mmandamaskhavingRarc,teamroundsshouldbegivenwithin8hoursofwelding,ortouseflametothemoistureinsidethebakinggroove.(6)thewelderholds"welding"and"weldingrecords"forweld
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