焊縫其外觀質(zhì)量驗(yàn)收規(guī)范標(biāo)準(zhǔn)

1、/焊縫及外觀質(zhì)量查收規(guī)范一目的Purpose建立諾信達(dá)格公司焊接產(chǎn)品的焊縫和外觀質(zhì)量查收標(biāo)準(zhǔn)Thepurposeoftheprocedureistoprovideaninspectionstandardforweldingfusion-weldedjointsqualityandcosmetic二范圍Scope所有諾信達(dá)格的焊接產(chǎn)品的焊縫外觀檢驗(yàn)TheprocedureisapplicablefortheweldingcosmeticinspectionofallNordsonDageproducts.三定義和吻合DefinitionsandSymbols1.短弊端Shortimperfect

2、ions若是焊縫長(zhǎng)度有100mm或更長(zhǎng)以及在100mm長(zhǎng)度內(nèi)包含的最大數(shù)量的弊端累計(jì)長(zhǎng)度低于25mm，那么這樣的弊端能夠?yàn)槭嵌瘫锥?。Incasewhentheweldsis100mmlongorlonger,imperfectionsareconsideredtobeshortimperfectionsif,inthe100mmwhichcontainsthegreatestnumberofimperfections,theirtotallengthislessthan25mm若是焊縫長(zhǎng)度小于100mm,但是在總長(zhǎng)范圍內(nèi)的弊端累計(jì)長(zhǎng)度小于焊縫長(zhǎng)度的25%，那么這樣的弊端也能夠?yàn)槭嵌瘫锥薎nca

3、sewhentheweldislessthan100mmlong,imperfectionsareconsideredtobeshortimperfectionsiftheirtotallengthislessthan25%ofthelengthoftheweld2.符號(hào)Symbols角焊縫的名義喉高nominalthroatthicknessofthefilletweldb焊接消融金屬的寬度widthofweldreinforcement弊端尺寸（高度或?qū)挾龋﹉eightorwidthofimperfection對(duì)接焊縫的名義厚度nominalbuttweldthickness壁厚或板厚/w

4、allorplatethickness角焊縫的腿長(zhǎng)leglengthofafilletweld-焊趾的角度angleofweldtoe四參照文件NormativeReferencesISO5817:2007WeldingFusion-weldedjointsinsteel,nickel,titaniumandtheiralloys(beamweldingexcluded)QualitylevelsforimperfectionsISO6520:2007WeldingandalliedprocessesClassificationofgeometricimperfectionsinmetalli

5、cmaterialsPart1:Fusionwelding五標(biāo)準(zhǔn)等級(jí)的采納InspectionQualityLevelSelection下表對(duì)焊接的不同樣弊端進(jìn)行了分類和定義，B級(jí)為最高焊接要求的檢驗(yàn)級(jí)別，C級(jí)為正常焊接要求的檢驗(yàn)級(jí)別，D級(jí)為較低焊接要求檢驗(yàn)級(jí)Belowtabledefinetheweldinglimitsforimperfectionforqualitylevels.QualitylevelBcorrespondstothehighestrequirementonthefinishedweld.QualitylevelCcorrespondstothenormalrequir

6、ementonthefinishedweld.QualitylevelDcorrespondstothelowerrequirementonthefinishedweld.若是沒有特別規(guī)定，除了焊縫表面不同樣意有焊渣異物混淆和不同樣意有為完好交融和浸透以外，所有焊接產(chǎn)品的檢驗(yàn)等級(jí)為C級(jí),拜會(huì)下面的表單Ifnoanyspecifiedexceptnoslaginclusionandlackoffusion/penetration,thequalitylevelCwillbedefaultselection.Detaildefinitionreferredtothetableasbelow.焊接弊

7、端名稱ImperfectionDesignation裂紋Cracks弧坑裂紋CraterCrack表面氣孔SurfacePores張口弧坑Craterpipe未熔合(未完好熔合)Lackoffusion(incompletefusion)/ISO6520-1說明厚度t查收標(biāo)準(zhǔn)D查收標(biāo)準(zhǔn)C查收標(biāo)準(zhǔn)BReferenceRemarksmmQualityLevelDQualityLevelCQualityLevelB100任何可見裂紋Anyvisualcracks=0.5不同樣意不同樣意不同樣意NotPermittedNotPermittedNotPermitted104=0.5不同樣意不同樣意不同樣

8、意NotPermittedNotPermittedNotPermitted2017單個(gè)氣孔的最大尺寸0.5to3Maximumdimensionofasingleporefor-對(duì)接焊縫Buttweldsd=0.3s不同樣意不同樣意-角焊縫Filletweldsd3Maximumdimensionofasingleporefor-對(duì)接焊縫Buttweldsd=0.3s,butmax.3mmd=0.2s,butmax.3mm不同樣意-角焊縫Filletweldsd=0.3a,butmax.3mmd=0.3a,butmax.3mmNotPermitted20250.5to3h3h=0.2t,but

9、max.2mmh=0.5不同樣意不同樣意不同樣意NotPermittedNotPermittedNotPermitted焊接弊端名稱ISO6520-1ImperfectionReferenceDesignation根部未焊透4021Incomplete連續(xù)咬邊5011Continuousundercut5012中止咬邊Intermittentundercut根凹5013Shrinkagegroove說明Remarks只適用于單邊對(duì)接焊縫Onlyforsinglesidebuttwelds要求圓滑過渡Smoothtransitionisrequired.不能夠連續(xù)出現(xiàn)Thisisnotregar

10、dedasasystematicimperfection要求圓滑過渡Smoothtransitionisrequired/厚度t查收標(biāo)準(zhǔn)D查收標(biāo)準(zhǔn)C查收標(biāo)準(zhǔn)BmmQualityLevelDQualityLevelCQualityLevelB=0.5短弊端贊同存在：不同樣意不同樣意ShortimperfectionsNotPermittedNotPermittedh=0.2t,butmax.2mm0.5to3短弊端贊同存在短弊端贊同存在不同樣意Shortimperfections:Shortimperfections:NotPermittedh=0.2th3h=0.2t,butmax.1mmh=

11、0.1t,h=0.05t,butmax.0.5mmbutmax.0.5mm0.5to3h=0.2mm+0.1t短弊端贊同存在不同樣意Shortimperfections:NotPermittedh3短弊端贊同存在短弊端贊同存在短弊端贊同存在Shortimperfections:Shortimperfections:Shortimperfections:h=0.2tbutmax.2mmh=0.1tbutmax.1mmh=0.5h=1mm+0.25b,butmax.h=1mm+0.15b,butmax.h=0.5h=1mm+0.25b,butmax.h=1mm+0.15b,butmax.h=1mm

12、+0.1b,but5mm4mmmax.3mm0.5to3h=1mm+0.6bh=1mm+0.3bh3h=1mm+1.0b,butmax.h=1mm+0.6b,butmax.h=0.5a=90a=100a=150=0.5a=90a=110a=110-Filletwelds（角焊）a1=a,a2=a焊接弊端名稱ImperfectionDesignationISO6520-1參照號(hào)ISO6520-1Reference/說明厚度t查收標(biāo)準(zhǔn)D查收標(biāo)準(zhǔn)C查收標(biāo)準(zhǔn)BRemarksmmQualityLevelDQualityLevelCQualityLevelB焊瘤Overlap未焊滿SaggingIncom

13、pletefilledgroove燒穿Burnthrough焊腳不對(duì)稱(腿長(zhǎng)不等)Excessiveasymmetryoffilletweld(excessiveunequalleglength)506=0.5h=0.2b不同樣意不同樣意NotPermittedNotPermitted5090.5to3短弊端贊同存在短弊端贊同存在不同樣意511Shortimperfections:Shortimperfections:NotPermittedh=0.25th3短弊端贊同存在短弊端贊同存在短弊端贊同存在Shortimperfections:Shortimperfections:Shortimpe

14、rfections:h=0.25tbutmax.2mmh=0.1tbutmax.1mmh=0.5不同樣意不同樣意不同樣意NotPermittedNotPermittedNotPermitted512當(dāng)焊腳不等時(shí)=0.5h=2mm+0.2ah=2mm+0.15ah=2mm+0.15aIncasewhereanasymmetricfilletweldhasnotbeenprescribed焊接弊端名稱ImperfectionDesignation根凹Rootconcavity根部氣孔R(shí)ootporosity接頭不良PoorRestart/ISO6520-1說明厚度t查收標(biāo)準(zhǔn)D查收標(biāo)準(zhǔn)C查收標(biāo)準(zhǔn)B參

15、照號(hào)RemarksmmQualityLevelDQualityLevelCQualityLevelBISO6520-1Reference515要求圓滑過渡0.5to3h=0.2mm+0.1t短弊端贊同存在不同樣意SmoothtransitionisrequiredShortimperfections:NotPermittedh3短弊端贊同存在短弊端贊同存在短弊端贊同存在Shortimperfections:Shortimperfections:Shortimperfections:h=0.2t,butmax.2mmh=0.1t,butmax.1mmh=0.5局部贊同不同樣意不同樣意孔（如根部缺

16、少氣體保護(hù)時(shí)）LocallypermittedNotPermittedNotPermittedSpongyformationattherootofaweldduetobubblingoftheweldmetalatthemomentofsolidification(e.g.lackofgasbacking)517=0.5贊同：依照接頭不良出現(xiàn)的不同樣意不同樣意地址NotPermittedNotPermittedPermitted:Thelimitdependsonthetypeofimperfectionoccurredduetorestart焊接弊端名稱ISO6520-1Imperfecti

17、on參照號(hào)DesignationISO6520-1Reference角焊縫填充金屬過5213薄Insufficientthroatthickness角焊縫填充金屬過5214厚Excessivethroatthickness電弧劃傷601StrayArc飛濺602Spatter/說明厚度t查收標(biāo)準(zhǔn)DRemarksmmQualityLevelD不適用較大的熔深工藝0.5to3短弊端贊同存在NotapplicabletoprocesseswithproofofgreaterShortimperfections:depthofpenetrationh3短弊端贊同存在Shortimperfections:h=0.5不限TheactualthroatthicknessofthefilletweldisUnlimitedtoolarge-=0.5當(dāng)不影響母材的性能時(shí)接受Permitted,ifthepropertiesoftheparentmetalarenotaffected-=0.5依資料的防腐化要求接受Acceptancedependsonapplication,e.g.materia