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简介：ＳｉｔｕａｔｉｏｎｏｎｗｅｌｄｅｒｔｒａｉｎｉｎｇｉｎＣｈｉｎａ￥ＹＵＪｉｌｕｎ（ＨａｒｂｉｎＷｅｌｄｉｎｇＴｒａｉｎｉｎｇＣｅｎｔｅｒ（１５００４６））Ａｂｓｔｒａｃｔ：ＴｈｅｓｔａｔｅｏｆｗｅｌｄｅｒｓｔｒａｉｎｉｎｇｉｎＣｈｉｎａｉｓｉｎｔｒｏ...

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简介：ＤｅｖｅｌｏｐｍｅｎｔｏｆｗｅｌｄｉｎｇｔｅｃｈｎｉｑｕｅｆｏｒｐｅｔｒｏｃｈｅｍｉｃａｌｉｎｄｕｓｔｒｙｉｎＣｈｉｎａ￥ＬＩＱｉｎｇｌｉｎ（Ｓｉｎｏ－ＰｅｔｒｏｃｈｅｍｉｃａｌＣｏｒｐｏｒａｔｉｏｎ，Ｂｅｉｊｉｎｇ（１０００２９）ＺＨＯＵＺｈｅｎｄ...

简介：Ｗｅｌｄｉｎｇｔｅｃｈｎｏｌｏｇｙｉｎｏｉｌ－ｆｉｅｌｄｃｏｎｓｔｒｕｃｔｉｏｎｉｎＣｈｉｎａ￥ＨＯＵＸｉａｎｚｈｏｎｇ（ＤａｑｉｎｇＯｉｌＦｉｅｌｄ）Ａｂｓｔｒａｃｔ：Ｔｈｉｓｐａｐｅｒｉｎｔｒｏｄｕｃｅｓｔｈｅａｐｐｌｉｃａｔｉｏｎａｎｄｄｅｖｅ...

简介：WeanalyzedthestatusanddevelopmentoftheweldingconsumablesindustryinChinaduringthe12thFive-YearPlan(2011-2015)period,andidentifiedthemajorproblemsintheindustry.Wepredictedthedevelopmenttrendsthatareexpectedforthe13thFive-YearPlan(2016-2020)period.Wesuggestsomespecificcountermeasuresandpractices,whichtheChineseweldingindustryshouldacceleratethetransformation-upgradingandcoordinateddevelopmentoftheindustryanditsfirms,shouldworkonimprovingtheiroverallqualitytoimprovethebrand'sinfluence,enlargetheirinputintoresearchandtechnologyupgrading,anddevelopalow-carbongreenproductionmodethatcouldbeputinplacetopromotethedevelopmentoftheChineseweldingconsumablesindustry.

简介：ＤｅｖｅｌｏｐｍｅｎｔｏｎｍａｎｕｆａｃｔｕｒｉｎｇｔｅｃｈｎｏｌｏｇｙｏｆｒａｉｌｗａｙｌｏｃｏｍｏｔｉｖｅａｎｄｒｏｌｌｉｎｇｓｔｏｃｋｉｎｄｕｓｔｒｙｉｎＣｈｉｎａ￥ＷＡＮＧＫｅｊｉａ（ＣｈｉｎａＮａｔｉｏｎａｌＲａｉｌｗａｙＬｏｃｏｍｏｔｉｖ...

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简介：BondingofAl2O3tocuisperformeddirectlyusingTifoilattemperatureof1273K.Themicrostructureofthejointinterfaceisinuestigatedthroughscanningelectronmicroscope（SEM）,electron.probemicroanalysis（EPMA）andX-raydiffraction（XRD）.theeffectoftheinitialtifoilthicknessonthereactionlayerthicknessandthejointStrengthareinvestigated.

简介：本文结合生产实践,简要分析提出了CO2气体保护焊目前所存在的缺陷与问题,并提出了相应的解决方法与CO2气体保护焊的发展趋势。

简介：ＡｖｉｓｉｏｎｔｒａｃｋｉｎｇｓｙｓｔｅｍｏｆｒｏｂｏｔＣＯ２ｓｈｏｒｔｔｒａｎｓｆｅｒｗｅｌｄｉｎｇＷｕＲｅｎｙｕ；ＷａｎｇＧｕｏｄｏｎｇａｎｄＬｉＸｉａｏｑｉ（ＴｉａｎｊｉｎＵｎｉｖｅｒｓｉｔｙ）ＺｈａｎｇＬｉａｎｃｈａｎｇ(ＭｏｔｏｒｏｌａＣ?..

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简介：本文介绍了CO2气体保护电弧焊的冶金特点，CO2气体保护电弧焊焊接过程中的熔滴过渡形式；从焊丝的冶金过程，焊接时的工艺参数的选择及调整等方面探讨了汽车白车身CO2焊接质量的控制。

简介：IntheautomaticCO2arcwelding,thealterationoftheverticaldistancebetweentheweldingtorchandtheworkpiecehasastrongeffectontheweldingparameterssuchasweldingcurrentandvoltage,withtheresultthattheappearanceandqualityofweldarenotsteady.Toweakentheinfluenceofthedistancealteration,amethodisputforwardinthepaper.Themethodisthatthealternatewire-feedcontrolisusedforcompensatingtheweldingcurrent.Onthebasisoftheoreticalanalysis,astaticnumericalmodelforalternatewire-feedcontrolisestablished.Theexperimentsshowthatthemodel-basedregulationofthewirefeedratecancompensatetheweldingcurrentandensuretheappearanceofweld.Whenthealterationofverticaldistancebetweenthetorchandtheworkpieceisgreater,notonlyisthewirefeedrateregulated,buttheoutputvoltageofthepowersourceisadjustedtoensuretheappearanceandqualityofweld.

简介：本文介绍了CO2焊工艺方法及其高效、优质、低成本的综合优越性以及在石油、化工、天然气工程建设中的应用与发展,不同种类的气体与焊丝相组合的工艺特点及控制焊缝成形的操作技术。

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简介：ThispaperintroducesabrazingprocessbetweenAl_2O_3ceramicandInvaralloy.Al_2O_3canbebrazedwithInvareffectively.TheinterfacialstructureofAl_2O_3/Invarjointcanbeexpressedas:Invar/Ag(s,s)+Cu(s,s)+Fe_2Ti(zoneⅠ)/Ag(s,s)+Cu(s,s)+Fe_2Ti+NiTi+Cu_3Ti(zoneⅡ)/Ag(s,s)+Cu(s,s)+Cu_2Ti+Al(s,s)+TiC+TiO(zoneⅢ)/Al_2O_3.Themaximumshearstrengthof139MPawasmeasuredforas-brazedAl_2O_3/Invarjointbrazedat850℃for25minor900℃for15min.