【英文标准名称】:StandardDigitalReferenceImagesforInvestmentSteelCastingsforAerospaceApplications
【原文标准名称】:航空航天用熔模钢铸件用标准数字参考图像
【标准号】:ASTME2660-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:E07.02
【标准类型】:(Reference)
【标准水平】:()
【中文主题词】:
【英文主题词】:aerospace;digitalreferenceimage;discontinuities;investmentcastings;nickel;steel;X-ray
【摘要】:Thesedigitalreferenceimagesareintendedforreferenceonly,butaredesignedsuchthatacceptancestandards,whichmaybedevelopedforparticularrequirements,canbespecifiedintermsofthesedigitalreferenceimages.Theillustrationsaredigitalimagesofcastingsthatwereproducedunderconditionsdesignedtodevelopthediscontinuities.GradedDiscontinuities:Gasholes,spongeshrinkage,dendriticshrinkage,lessdenseforeignmaterial(1)Theimagesofthe1/8-in(3.2-mm)castingsareintendedtobeusedinthethicknessrangeuptoandincludingx00BC;-in(6.3-mm).Theimagesofthe3/8-in(9.5-mm)castingsareintendedtobeusedinthethicknessrangeofoverx00BC;-in(6.4-mm),uptoandincludingx00BD;-in(12.7-mm).Theimagesofthex00BE;-in(19.1-mm)castingsareintendedtobeusedinthethicknessrangeofoverx00BD;-in(12.7-mm),uptoandincluding1-in.(25.4-mm).CavityShrinkage,FilamentaryShrinkage:(1)Theimagesofthex00BE;-in(19.1-mm)castingsareintendedtobeusedinthethicknessrangeuptoandincluding1-in.(25.4-mm).UngradedDiscontinuities:Theimagesofthe3/8-in(9.5-mm)castingsareintendedtobeusedinthethicknessrangeuptoandincluding1-in.(25.4-mm).ImageDeterioration8212;Manyconditionscanaffecttheappearanceandfunctionalityofdigitalreferenceimages.Forexample,electricalinterference,hardwareincompatibilities,andcorruptedfilesanddriversmayaffecttheirappearance.ThePracticeE2002linepairgaugeslocatedineachdigitalreferenceimagecanbeusedasanaidtodetectimagedeteriorationbycomparingthemeasuredresolutionusingthegaugestotheresolutionstatedonthedigitalreferenceimage.Donotusethedigitalreferenceimagesiftheirappearancehasbeenadverselyaffectedsuchthattheinterpretationanduseoftheimagescouldbeinfluenced.Agreementshouldbereachedbetweencognizantengineeringorganizationandthesupplierthatthesystemusedbythesupplieriscapableofdetectingandclassifyingtherequireddiscontinuities.1.1Thedigitalreferenceimagesprovidedintheadjuncttothisstandardillustratevarioustypesanddegreesofdiscontinuitiesoccurringinthin-wallsteelinvestmentcastings.Useofthisstandardforthespecificationorgradingofcastingsrequiresprocurementoftheadjunctdigitalreferenceimageswhichillustratethediscontinuitytypesandseveritylevels.Theyareintendedtoprovidethefollowing:1.1.1Aguideenablingrecognitionofthin-wallsteelcastingdiscontinuitiesandtheirdifferentiationbothastotypeanddegreethroughdigitalradiographicexamination.1.1.2Exampledigitalradiographicillustrationsofdiscontinuitiesandanomenclatureforreferenceinacceptancestandards,specificationsanddrawings.1.2Twoillustrationcategoriesarecoveredasfollows:1.2.1Graded8212;Sixcommondiscontinuitytypeseachillustratedineightdegreesofprogressivelyincreasingseverity.1.2.2Ungraded【英文标准名称】:LightningProtectionComponents(LPC)-Part2:requirementsforconductorsandearthelectrodes.
【原文标准名称】:雷电防护部件(LPC).第2部分:导体和接地电极的要求
【标准号】:NFC17-151-2-2008
【标准状态】:现行
【国别】:法国
【发布日期】:2008-11-01
【实施或试行日期】:2008-11-22
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:避雷针;地线;夹具;分类;集电装置;元部件;连接器;定义;尺寸;接地导线;接地极;接地装置;导电体;电气工程;电绝缘;电性能;紧固件;接地线;避雷装置;避雷防护;材料;测量点;机械性能;金属保护;金属的;防护设备;安全措施;安全要求;规范(验收);终端标志;测试
【英文主题词】:Airterminationrods;Catchlines;Clamps;Classification;Collectingdevices;Components;Connectors;Definition;Definitions;Dimensions;Earthconductors;Earthelectrodes;Earthinginstallations;Electricconductors;Electricalengineering;Electricalinsulation;Electricalproperties;Fasteners;Groundingrods;Lightningconductors;Lightningprotection;Materials;Measuringpoints;Mechanicalproperties;Metalprotection;Metallic;Protectiveequipment;Safetymeasures;Safetyrequirements;Specification(approval);Terminalmarkings;Testing
【摘要】:
【中国标准分类号】:K49
【国际标准分类号】:91_120_40
【页数】:29P;A4
【正文语种】:其他