EN 439-1994 焊接填料.电弧焊和切割用保护气体;德文版本EN439:1994
时间:2024-05-27 20:19:44 来源: 标准资料网 作者：标准资料网 阅读：8102
【英文标准名称】:Weldingconsumables-Shieldinggasesforarcweldingandcutting;GermanversionEN439:1994
【原文标准名称】:焊接填料.电弧焊和切割用保护气体;德文版本EN439:1994
【标准号】:EN439-1994
【标准状态】:现行
【国别】:
【发布日期】:1995-05
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:化学性质;混合气体;焊接填充金属;等离子电弧焊;名称与符号;气体保护焊;电弧焊接;保护气体;切削;分类系统;气体;切削工具;等离子体电弧切割;特性
【英文主题词】:
【摘要】:焊接填料.电弧焊和切割用保护气体;德文版本EN439:1994
【中国标准分类号】:J33
【国际标准分类号】:25_160_20
【页数】:6P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforTranslaminarFractureToughnessofLaminatedandPultrudedPolymerMatrixCompositeMaterials
【原文标准名称】:叠层和挤拉制聚合物基质合成材料横断面断裂韧性的标准试验方法
【标准号】:ASTME1922-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:E08.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:韧性;分层的;断裂韧性;聚合材料;高聚物;试验方法
【英文主题词】:translaminarfracturtoughness;laminatedpolymer;pultrudedpolymer;matrixcomposite
【摘要】:TheparameterKTLdeterminedbythistestmethodisameasureoftheresistanceofapolymermatrixcompositelaminatetonotch-tipdamageandeffectivetranslaminarcrackgrowthunderopeningmodeloading.Theresultisvalidonlyforconditionsinwhichthedamagezoneatthenotchtipissmallcomparedwiththenotchlengthandthein-planespecimendimensions.Thistestmethodcanservethefollowingpurposes.Inresearchanddevelopment,KTLdatacanquantitativelyestablishtheeffectsoffiberandmatrixvariablesandstackingsequenceofthelaminateonthetranslaminarfractureresistanceofcompositelaminates.Inacceptanceandqualitycontrolspecifications,KTLdatacanbeusedtoestablishcriteriaformaterialprocessingandcomponentinspection.Thetranslaminarfracturetoughness,KTL,determinedbythistestmethodmaybeafunctionofthetestingspeedandtemperature.Thistestmethodisintendedforroomtemperatureandquasi-staticconditions,butitcanapplytoothertestconditionsprovidedthattherequirementsof9.2and9.3aremet.ApplicationofKTLinthedesignofservicecomponentsshouldbemadewithawarenessthatthetestparametersspecifiedbythistestmaydifferfromserviceconditions,possiblyresultinginadifferentmaterialresponsethanthatseeninservice.Notalltypesoflaminatedpolymermatrixcompositematerialsexperiencethecontainednotch-tipdamageandeffectivetranslaminarcrackgrowthofconcerninthistestmethod.Forexample,thenotch-tipdamagemaybemoreextensiveandmaynotbeaccompaniedbyanysignificantamountofeffectivetranslaminarcrackgrowth.Typically,lowerstrengthcompositematerialsandthosewithasignificantproportionofreinforcingfibersalignedinadirectionperpendiculartothenotchaxismaynotexperiencethecontainednotch-tipdamagerequiredforavalidtest.1.1Thistestmethodcoversthedeterminationoftranslaminarfracturetoughness,KTL,forlaminatedandpultrudedpolymermatrixcompositematerialsofvariousplyorientationsusingtestresultsfrommonotonicallyloadednotchedspecimens.1.2Thistestmethodisapplicabletoroomtemperaturelaboratoryairenvironments.1.3Compositematerialsthatcanbetestedbythistestmethodarenotlimitedbythicknessorbytypeofpolymermatrixorfiber,providedthatthespecimensizesandthetestresultsmeettherequirementsofthistestmethod.Thistestmethodwasdevelopedprimarilyfromtestresultsofvariouscarbonfiber-epoxymatrixlaminatesandfromadditionalresultsofglassfiber-epoxymatrix,glassfiber-polyestermatrixpultrusionsandcarbonfiber-bismaleimidematrixlaminates(1-4,6,7).1.4Arangeofeccentricallyloaded,single-edge-notchtension,ESE(T),specimensizeswithproportionalplanardimensionsisprovided,butplanarsizemaybevariableandadjusted,withassociatedchangesintheappliedtestload.Specimenthicknessisavariable,independentofplanarsize.1.5Specimenconfigurationsotherthanthosecontainedinthistestmethodmaybeused,providedthatstressintensitycalibrationsareavailableandthatthetestresultsmeettherequirementsofthistestmethod.Itisparticularlyimportantthattherequirementsdiscussedin5.1and5.4regardingcontainednotch-tipdamagebemetwhenusingalternativespecimenconfigurations.1.6ValuesstatedinSIunitsaretoberegardedasthestandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityo......
【中国标准分类号】:G31
【国际标准分类号】:83_140_20
【页数】:5P.;A4
【正文语种】:
【英文标准名称】:Aluminiumandaluminiumalloys-Anodizing-Part19:ratingsystemfortheevaluationofpittingcorrosion-Gridmethod.
【原文标准名称】:铝和铝合金.阳极化处理.第19部分:斑蚀评价的分级系统.格栅法
【标准号】:NFA91-455-19-2002
【标准状态】:作废
【国别】:法国
【发布日期】:2002-06-01
【实施或试行日期】:2002-06-05
【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】:
【英文主题词】:Alloys;Aluminium;Aluminiumalloys;Anodic;Anodiccoating;Anodicoxidation;Coatings;Corrosion;Corrosiontests;Counting;Definition;Definitions;Electrical;Evaluations;Gridsystems;Inspection;Measurement;Measuringtechniques;Non-ferrousmetals;Non-metalliccoatings;Oxidecoatings;Pittingcorrosion;Protectivecoat;Surfacetreatment;Surfaces;Testequipment;Testing;Voltage;Weightingsystem
【摘要】:
【中国标准分类号】:A29
【国际标准分类号】:25_220_20;77_120_10
【页数】:8P.;A4
【正文语种】:其他