简介：Weldingtransformeriswidelyusedinindustrymanufacturing,depletingalargePortionofelectricityenergy.Basedonmoderncomputerandmathematicalprogramming,Optimundesignofelectro-magneticdevicesleadstohighlyefficientuseofenergrandmaterials.Arcweldingtransformerisoptimizedhere.Amathematicalmodel,consideringbothproductivecostandoperatinglosses,whichiscalledarEconomical-through-Lifetransformer,isestab-lished.Mixedfunctionmethod,mixeddispersingvariablemethodandimprovedorthogonalmethodhavebeenappliedtocarryouttheoptimizationcalculations.ResultshowsthatthepowerfactorisquiteimportantinanEconmi-cal-through-Lifetransformer,andthatsomeprinciplesmustbefollowedinthedesignwork.Alsodiscussedarethead-vantagesanddisadvantagesofthethreemethods.Intheend,theprospectofoptimumdesignofweldingtransformerisforecast.

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简介：ThesoftswitchingareweldinginverterreducesswitchinglossesandimprovesoperatingenvitonmentofdevicesbyusingZero-Voltage-Transition(ZVT)technique.Step-by-stepanalysisofeachtimingintervalandtheassociatingvoltageandcurrentwaveformsareincludedfortheFull-BridgeZero-Voltage-SwitchedPWMcomerter,Numerousdesignequationssupportingthephase-shiftedsoftswitchingtechniquearehighlighte.

简介：Inthispaper,theperformancecharacteristicsofASTMA19QS31803andASTMA1S2F51duplexstainlesssteelwereintroduced,andtheweldabilitieswereanalyzed.Theweldingrepairproceduresofthickwallduplexstainlesssteelweredevelopedbyweldingprocedurequalification.Researchshowsthattherepairweldinghaslesseffectonmechanicalpropertiesofweldedjointsandgreatinfluenceonphaseproportionsandpittingcorrosionresistance.Thetestresultsmeettherequirementsofprojectspecifications.Therepairweldingprocedurecanbeusedinproject,andonlyonetimerepairshallbeused.

简介：AccordingtothemaintoolsofTRIZ,thetheoryofinventiveproblemsolving,anewflowchartoftheproductconceptualdesignprocesstosolvecontradictioninTRIZisproposed.InordertorealizeautonomousmovingandautomaticweldseamtrackingforweldingrobotinTailedWeldedBlanks,acreativedesignofroboticvisualtrackingsystembasedonCMOShasbeendevelopedbyusingtheflowchart.Thenewsystemisnotonlyusedtoinspecttheworkpieceaheadofaweldingtorchandmeasurethejointorientationandlateraldeviationcausedbycurvatureordiscontinuityinthejointpart,butalsotorecordandmeasuretheimagesizeoftheweldpool.Moreover,thehardwareandsoftwarecomponentsarediscussedinbrief.

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