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【英文标准名称】:Non-destructiveexaminationofwelds-Ultrasonicexaminationofweldedjoints-Acceptancelevels
【原文标准名称】:焊接无损检验.焊点超声检测.验收水平
【标准号】:BSEN1712-1997
【标准状态】:作废
【国别】:英国
【发布日期】:1997-12-15
【实施或试行日期】:1997-12-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:试验条件;灵敏度;校正;焊接接头;无损检验;焊接;厚度;横向连接;超声检验;尺寸;验收(鉴定);验收检验;连接
【英文主题词】:Boundaries;Buttseams;Ferriticsteels;Materials;Materialstesting;Methods;Non-destructivetesting;Permissibility;Surfaces;Testing;Ultrasonictesting;Ultrasonics;Weldedjoints;Welding;Weldingengineering
【摘要】:ThisEuropeanStandardspecifiesultrasonicacceptancelevels,2and3,forfullpenetrationweldedjointsinferriticsteels,whichcorrespondtothequalitylevelsBandCofEN25817.Otheracceptancelevelscanbeusedbyspecification.AnacceptancelevelcorrespondingtolevelDofEN25817hasnotbeenincludedinthisstandardasultrasonictestingisnotrecommendedforthisweldquality.TheseacceptancelevelsareapplicabletotestingcarriedoutinaccordancewiththestandardsreferredtoinEN12062.Textdeleted.Thestandardisapplicabletothetestingoffullpenetrationferriticsteelwelds,withthicknessesfrom8mmupto100mm.Itcanalsobeusedforothertypesofwelds,materialsandthicknessesabove100mm,providedthetestshavebeenperformedwithnecessaryconsiderationofthegeometryandacousticalpropertiesofthecomponentandanadequatesensitivitycanbeemployedtoenabletheacceptancelevelsofthisstandardtobeapplied.ThenominalfrequencyofprobesusedinthisEuropeanStandardisbetween2MHzand5MHzunlessattenuationorrequirementsforhigherresolutioncallforanotherfrequency.Theuseoftheseacceptancelevelsinconjunctionwithfrequenciesoutsidethisrangeneedstobeconsideredcarefully.
【中国标准分类号】:J33
【国际标准分类号】:25_160_40
【页数】:14P.;A4
【正文语种】:英语