焊縫及其外觀質(zhì)量查收規(guī)范標(biāo)準(zhǔn)焊縫及其外觀質(zhì)量查收規(guī)范標(biāo)準(zhǔn)#/8//焊接缺點名稱ImperfectionDesignationISO6520-1Reference說明Remarks厚度tmm查收標(biāo)準(zhǔn)DQualityLevelD查收標(biāo)準(zhǔn)CQualityLevelC查收標(biāo)準(zhǔn)BQualityLevelB裂紋Cracks弧坑裂紋CraterCrack表面氣孔SurfacePores張口弧坑Craterpipe未熔合（未完整熔合）Lackoffusion(incompletefusion)10010420172025>=0.5不樣意不一樣意不一樣意任何可見裂紋Anyvisualcracks1kLiNotPermittedNotPermittedNotPermitted單個氣孔的最大尺寸Maximumdimensionofasingleporefor--對接焊縫Buttwelds--角焊縫Filletwelds單個氣孔的最大尺寸Maximumdimensionofasingleporefor--對接焊縫Buttwelds--角焊縫Filletwelds>=0.5不樣意不一樣意不一樣意NotPermittedNotPermittedNotPermitted0.5to3d<=0.3sd<=0.3a>30.5to3h<>3>=0.5不d<=0.3s,butmax.3mmd<=0.3a,butmax.3mm=0.2th<=0.2t,butmax.2mm樣意NotPermitted不一樣意NotPermittedd<=0.2s,butmax.3mmd<=0.3a,butmax.3mm不一樣意NotPermittedh<=0.1t,butmax.1mm不一樣意NotPermitted不一樣意NotPermitted不一樣意NotPermitted不一樣意NotPermitted不一樣意NotPermitted不一樣意NotPermitted焊接缺點名稱ISO6520-1ImperfectionReferenceDesignation說明Remarks//厚度tmm查收標(biāo)準(zhǔn)DQualityLevelD查收標(biāo)準(zhǔn)CQualityLevelC查收標(biāo)準(zhǔn)BQualityLevelB根部未焊透4021Incomplete只合用于單邊對接焊縫Onlyforsinglesidebuttwelds>=0.5欠缺點同意存在:不一樣意不一樣意ShortimperfectionsNotPermittedNotPermitted連續(xù)咬邊Continuousundercut中斷咬邊Intermittentundercut根凹Shrinkagegroove余高過高（對接焊縫）Excessweldmetal(buttweld)501150125013h<=0.2t,butmax.2mm要求圓滑過渡Smoothtransitionisrequired.不可以連續(xù)出現(xiàn)Thisisnotregardedasasystematicimperfection要求圓滑過渡Smoothtransitionisrequired要求圓滑過渡Smoothtransitionisrequired0.5to3欠缺點同意存在Shortimperfections:h<=0.2t>3h<=0.2t,butmax.1mm0.5to3h<=0.2mm+0.1t>3>=0.5欠缺點同意存在Shortimperfections:h<=0.1th<=0.1t,butmax.0.5mm欠缺點同意存在Shortimperfections:h<=0.1t不一樣意NotPermittedh<=0.05t,butmax.0.5mm不一樣意NotPermitted欠缺點同意存在欠缺點同意存在欠缺點同意存在Shortimperfections:h<=0.2tbutmax.2mmShortimperfections:h<=0.1tbutmax.1mmShortimperfections:h<=0.05tbutmax.0.5mmh<=1mm+0.25b,butmax.10mmh<=1mm+0.15b,butmax.7mmh<=1mm+0.1b,butmax.5mm焊接缺點名稱ImperfectionDesignationISO6520-1參照號ISO6520-1Reference焊縫凸度（角焊縫）503Excessiveconvexity（filletwelds）焊透過大504Excesspenetration焊縫過渡不良505Incorrectweldtoe說明Remarks由Buttwelds（對接焊）4Filletwelds （角焊） a1>=a, a2>=a//厚度tmm>=0.50.5to3>3>=0.5>=0.5查收標(biāo)準(zhǔn)D查收標(biāo)準(zhǔn)C查收標(biāo)準(zhǔn)BQualityLevelDQualityLevelCQualityLevelBh<=1mm+0.25b,butmax.5mmh<=1mm+0.6bh<=1mm+1.0b,butmax.5mma>=90°a>=90°h<=1mm+0.15b,butmax.4mmh<=1mm+0.3bh<=1mm+0.6b,butmax.4mma>=100°a>=110°h<=1mm+0.1b,butmax.3mmh<=1mm+0.1bh<=1mm+0.2b,butmax.3mma>=150°a>=110°焊接缺點名稱ImperfectionDesignationISO6520-1參照號ISO6520-1Reference焊瘤Overlap未焊滿SaggingIncompletefilledgroove燒穿Burnthrough焊腳不對稱（腿長不等）Excessiveasymmetryoffilletweld(excessiveunequalleglength)506509511510512說明Remarks■當(dāng)焊腳不等時Incasewhereanasymmetricfilletweldhasnotbeenprescribed//厚度tmm查收標(biāo)準(zhǔn)DQualityLevelD查收標(biāo)準(zhǔn)CQualityLevelC查收標(biāo)準(zhǔn)BQualityLevelB>=0.5h<=).2b不一樣意NotPermitted0.5to3>3>=0.5>=0.5不一樣意NotPermitted欠缺點同意存在欠缺點同意存在不一樣意Shortimperfections:h<=0.25tShortimperfections:h<=0.1tNotPermitted欠缺點同意存在欠缺點同意存在欠缺點同意存在Shortimperfections:h<=0.25tbutmax.2mmShortimperfections:h<=0.1tbutmax.1mmShortimperfections:h<=0.05tbutmax.0.5mm不一樣意NotPermittedh<=2mm+0.2a不一樣意NotPermittedh<=2mm+0.15a不一樣意NotPermittedh<=2mm+0.15a//焊接缺點名稱ImperfectionDesignationISO6520-1參照號ISO6520-1Reference說明Remarks厚度t查收標(biāo)準(zhǔn)DmmQualityLevelD查收標(biāo)準(zhǔn)CQualityLevelC查收標(biāo)準(zhǔn)BQualityLevelB根凹Rootconcavity515要求圓滑過渡Smoothtransitionisrequired0.5to3h<=0.2mm+0.1t根部氣孔Rootporosity接頭不良PoorRestart516517焊縫金屬凝結(jié)時， 在焊縫根部形成的多孔性氣孔(如根部缺乏氣體保護(hù)時)Spongyformationattherootofaweldduetobubblingoftheweldmetalatthemomentofsolidification(e.g.lackofgasbacking)>3>=0.5>=0.5欠缺點同意存在Shortimperfections:h<=0.2t,butmax.2mm局部同意Locallypermitted同意：依據(jù)接頭不良出現(xiàn)的地點Permitted:Thelimitdependsonthetypeofimperfectionoccurredduetorestart欠缺點同意存在Shortimperfections:h<=0.1t欠缺點同意存在Shortimperfections:h<=0.1t,butmax.1mm不一樣意NotPermitted不一樣意NotPermitted不一樣意NotPermitted欠缺點同意存在Shortimperfectionsh<=0.05t,butmax.0.5mm不一樣意NotPermitted不一樣意NotPermitted//焊接缺點名稱ISO6520-1說明Imperfection參照號RemarksDesignationISO6520-1Reference厚度tmm查收標(biāo)準(zhǔn)DQualityLevelDQualityLevelCQualityLevelB角焊縫填補金屬過5213薄Insufficientthroatthickness不合用較大的熔深工藝Notapplicabletoprocesseswithproofofgreaterdepthofpenetration0.5to3>3欠缺點同意存在Shortimperfections:h<=0.2mm欠缺點同意存在Shortimperfections:h<=0.3mm+0.1a,butmax.2mm欠缺點同意存在Shortimperfections:h<=0.2mm欠缺點同意存在Shortimperfections:h<=0.3mm+0.1a,butmax.1mm不一樣意NotPermitted不一樣意NotPermitted角焊縫填補金屬過5214Excessivethroat角焊縫實質(zhì)喉高過大Theactualthroatthicknessofthefilletweldistoolarge>=0.5不限Unlimitedh<=1mm+0.2a,butmax.4mmh<=1mm+0.15a,butmax.1mmthickness電弧劃傷StrayArc飛濺Spat