【英文标准名称】:Methodforultrasonictestingofspecialforgingsbyanimmersiontechniqueusingflat-bottomedholesasareferencestandard
【原文标准名称】:以平底孔为参考标准采用浸没技术的特殊锻件的超声波试验法
【标准号】:BSM36-1970
【标准状态】:现行
【国别】:英国
【发布日期】:1970-09-14
【实施或试行日期】:1970-09-14
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:图示;超声波学;锻件;报告;缺陷与故障;航空运输工程;试样;航空发动机;涡轮机部件;无损检验;色码;超声检验;飞行器部件;表面缺陷;控制样品;声学检验;探伤;尺寸;旋转部件
【英文主题词】:
【摘要】:1ThisBritishStandardappliestotheultrasonicinspectionbyanimmersiontechniqueofspecialforgingsusedprimarilyforrotatingparts,e.g.turbinediscs.Itaccordinglydescribesthemethodoftestingbywhichtheacceptabilityofsuchforgingscanbeassessed,andspecifiesflat-bottomedholereferencestandards,apparatusre-quirements,andcontrolandtestprocedures.2Themethod,whichisconfinedtopulseechotech-niquesandtheuseofsinglecrystaltransceiverprobes,islimitedtouseonforgingshavingathicknessofnotlessthantwicethenearsurfaceresolutionoftheprobe(asdeterminedin2.1.4)whichlendthemselves,byvirtueoftheirform,tomechanicalscanninginwhichtheincidentbeamisapproximatelynormaltothesurfaceofthesectionbeingscanned.3Themethodisprimarilyintendedandrecommendedforuseonforgingswhentheseareintherawmaterialstateonly.However,itcanbeusedduringmanufactureonmachinedorpart-machinedcomponents,providedthatthesecomponentscomplywiththeshapeandthicknessdescribedin1.1.2.4Byagreement,thestandardmayalsobeusedfortestsonothertypesofforgingsandwroughtformsmanufac-turedinallmetallicmaterials,inwhichcasedueallowancehastobemadeforthedifferencesinultrasonicattenuationandtransmissionfactorspresentedbyeachmaterial.Factorsaffectingtheapparentflawsizewhenestimatedbycomparisonwiththereferencestandards,andprocedureswhichwillenabledueallowancetobemadeforthemaredescribed.
【中国标准分类号】:H26
【国际标准分类号】:49_025_01
【页数】:22P;A4
【正文语种】:英语