ASTM E164-2008 焊接的超声接触检验的标准实施规程

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【英文标准名称】:StandardPracticeforContactUltrasonicTestingofWeldments
【原文标准名称】:焊接的超声接触检验的标准实施规程
【标准号】:ASTME164-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E07.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:NDTofweldments;nondestructivetesting;ultrasoniccontactexamination;ultrasonicNDTofweldments;weldments;Aluminumalloys;Calibration--ultrasonicanalysisinstrumentation;Ferrousmetals/alloys;Ultrasonictesting;Ultrasonictesting--welds;W
【摘要】:Thetechniquesforultrasonicexaminationofweldsdescribedinthispracticeareintendedtoprovideameansofweldexaminationforbothinternalandsurfacediscontinuitieswithintheweldandtheheat-affectedzone.Thepracticeislimitedtotheexaminationofspecificweldgeometriesinwroughtorforgedmaterial.Thetechniquesprovideapracticalmethodofweldexaminationforinternalandsurfacediscontinuitiesandarewellsuitedtothetaskofin-processqualitycontrol.Thepracticeisespeciallysuitedtothedetectionofdiscontinuitiesthatpresentplanarsurfacesperpendiculartothesoundbeam.Othernondestructiveexaminationsmaybeusedwhenporosityandslaginclusionsmustbecriticallyevaluated.Whenultrasonicexaminationisusedasabasisofacceptanceofwelds,thereshouldbeagreementbetweenthemanufacturerandthepurchaserastothespecificreferencestandardsandlimitstobeused.ExamplesofreferencestandardsaregiveninSection7.Adetailedprocedureforweldexaminationdescribingallowablediscontinuitylimitsshouldbewrittenandagreedupon.1.1ThispracticecoverstechniquesfortheultrasonicA-scanexaminationofspecificweldconfigurationsjoiningwroughtferrousoraluminumalloymaterialstodetectwelddiscontinuities(Note1).Thereflectionmethodusingpulsedwavesisspecified.Manualtechniquesaredescribedemployingcontactofthesearchunitthroughacouplantfilmorwatercolumn.1.2Thispracticeutilizesanglebeamsorstraightbeams,orboth,dependinguponthespecificweldconfigurations.Practicesforspecialgeometriessuchasfilletweldsandspotweldsarenotincluded.Thepracticeisintendedtobeusedonthicknessesof0.250to8in.(6.4to203mm).Note18212;Thispracticeisbasedonexperiencewithferrousandaluminumalloys.Othermetallicmaterialscanbeexaminedusingthispracticeprovidedreferencestandardscanbedevelopedthatdemonstratethattheparticularmaterialandweldcanbesuccessfullypenetratedbyanultrasonicbeam.Note28212;ForadditionalpertinentinformationseePracticeE317,TerminologyE1316,andPracticeE587.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J33
【国际标准分类号】:25_160_40
【页数】:24P.;A4
【正文语种】:英语