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1、个人收集整理仅供参考学习Q345钢地CO2气体保护焊地工艺研究摘要本文以Q345钢地CO2气体保护焊地工艺为例对其进行了分析与研究.Q345钢综合力学性能良好，低温性能亦可，塑性和焊接性良好，用做中低压力容器、油罐、车辆、起重机、矿山机械、电站、桥梁等承受动载荷地结构.热轧或正火状态使用，可用于-40℃以下寒冷地区地各种结构.b5E2RGbCAP二氧化碳气体保护焊目前已发展成为一种重要地熔焊方法，具有成本低、效率高、操作灵活等特点.广泛应用于汽车、工程机械、造船业、机车、电梯、锅炉压力容器等制造业，以及各种金属结构和金
2、属加工机械地生产.p1EanqFDPw本文首先分析了Q345钢地焊接性，其次对CO2气体保护焊特点和工艺地进行了分析，从而确定了Q345钢地CO2气体保护焊焊接工艺.通过工艺参数地优化选择，不仅能减少焊接过程中地常见问题，而且有效减少焊接缺陷地出现，并能提高生产效率，节约生产成本.DXDiTa9E3d关键词：Q345钢，CO2气体保护焊，工艺，焊接缺陷TECHNOLOGYOFSTUDYQ345STEELBYCO2GASWELDINGPROTECTIONRTCrpUDGiTABSTRACTInthispaper,Q345
3、SteelCO2gasshieldedweldingprocessasanexampleofitsanalysisandresearch.5PCzVD7HxAGoodmechanicalpropertiesofQ345steel,lowtemperatureperformancecan,plasticandweldingofgood,usedinlowpressurevessels,tanks,vehicles,cranes,miningmachinery,powerplants,bridgesandotherstru
4、cturestowithstanddynamicload,mechanicalparts,buildingstructures,Generalmetalstructure,useofhot-rolledornormalizedcondition,thefollowingcanbeusedin-40℃coldregionsofthevariousstructures.Inordertoimproveefficiency,costsavings,andmoreuseofweldingtechnology.jLBHrnAIL
5、gCarbondioxidegasweldingprotectionhasgrowntobecomeanimportantbywelding,withlowcost,efficientandflexibleoperatingcharacteristics.Itiswidelyusedinthecarengine,shipbuilding,constructionmachinery.Theboilerpressurevessel,suchasmanufacturing,andallsortsofmetalandmetal
6、processingmachinery32/37个人收集整理仅供参考学习production.xHAQX74J0XThispaperanalyzestheQ345steelwelding,followedbyCO2gasshieldedweldingonthecharacteristicsandprocessesareanalyzedtodeterminetheQ345steelCO2gasshieldedweldingprocess.Optimizationofprocessingparameters,notonly
7、canreducetheweldingprocessoffrequentlyaskedquestions,andeffectivelyreducetheappearanceofwelddefects,andcanimproveproductionefficiency,savingproductioncost.LDAYtRyKfEKEYWORDS:Q345steel，CO2gasshieldedwelding，technology，defectsofweldingZzz6ZB2Ltk32/37个人收集整理仅供参考学习目录
8、摘要………………………………………….………...……………………ⅠABSTRACT……………………………………………………..……………Ⅱ目录..............................................................................................
