ASTM A388/A388M-2011 钢锻件超声检验用标准实施规程
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【英文标准名称】:StandardPracticeforUltrasonicExaminationofSteelForgings
【原文标准名称】:钢锻件超声检验用标准实施规程
【标准号】:ASTMA388/A388M-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:A01.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:角钢梁检查;背部反射;DGS;直射波检测;超声波;锻件
【英文主题词】:anglebeamexamination;back-reflection;DGS;straightbeamexamination;ultrasonic;Forgings
【摘要】:Thispracticeshallbeusedwhenultrasonicinspectionisrequiredbytheorderorspecificationforinspectionpurposeswheretheacceptanceoftheforgingisbasedonlimitationsofthenumber,amplitude,orlocationofdiscontinuities,oracombinationthereof,whichgiverisetoultrasonicindications.Theultrasonicqualitylevelshallbeclearlystatedasorderrequirements.1.1Thispracticecoverstheexaminationproceduresforthecontact,pulse-echoultrasonicexaminationofsteelforgingsbythestraightandangle-beamtechniques.ThestraightbeamtechniquesincludeutilizationoftheDGS(DistanceGain-Size)method.SeeAppendixX3.1.2Thispracticeistobeusedwhenevertheinquiry,contract,order,orspecificationstatesthatforgingsaretobesubjecttoultrasonicexaminationinaccordancewithPracticeA388/A388M.1.3Supplementaryrequirementsofanoptionalnatureareprovidedforuseattheoptionofthepurchaser.Thesupplementaryrequirementsshallapplyonlywhenspecifiedindividuallybythepurchaserinthepurchaseorderorcontract.1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.5Thisspecificationandtheapplicablematerialspecificationsareexpressedinbothinch-poundunitsandSIunits.However,unlesstheorderspecifiestheapplicablex201C;Mx201D;specificationdesignation[SIunits],thematerialshallbefurnishedtoinch-poundunits.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:77_040_20;77_140_85
【页数】:9P.;A4
【正文语种】:
【原文标准名称】:钢锻件超声检验用标准实施规程
【标准号】:ASTMA388/A388M-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:A01.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:角钢梁检查;背部反射;DGS;直射波检测;超声波;锻件
【英文主题词】:anglebeamexamination;back-reflection;DGS;straightbeamexamination;ultrasonic;Forgings
【摘要】:Thispracticeshallbeusedwhenultrasonicinspectionisrequiredbytheorderorspecificationforinspectionpurposeswheretheacceptanceoftheforgingisbasedonlimitationsofthenumber,amplitude,orlocationofdiscontinuities,oracombinationthereof,whichgiverisetoultrasonicindications.Theultrasonicqualitylevelshallbeclearlystatedasorderrequirements.1.1Thispracticecoverstheexaminationproceduresforthecontact,pulse-echoultrasonicexaminationofsteelforgingsbythestraightandangle-beamtechniques.ThestraightbeamtechniquesincludeutilizationoftheDGS(DistanceGain-Size)method.SeeAppendixX3.1.2Thispracticeistobeusedwhenevertheinquiry,contract,order,orspecificationstatesthatforgingsaretobesubjecttoultrasonicexaminationinaccordancewithPracticeA388/A388M.1.3Supplementaryrequirementsofanoptionalnatureareprovidedforuseattheoptionofthepurchaser.Thesupplementaryrequirementsshallapplyonlywhenspecifiedindividuallybythepurchaserinthepurchaseorderorcontract.1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.5Thisspecificationandtheapplicablematerialspecificationsareexpressedinbothinch-poundunitsandSIunits.However,unlesstheorderspecifiestheapplicablex201C;Mx201D;specificationdesignation[SIunits],thematerialshallbefurnishedtoinch-poundunits.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:77_040_20;77_140_85
【页数】:9P.;A4
【正文语种】:
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