HB 7344.9-1996 数控机床用夹具件 中型槽定位长方形基础板

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基本信息
标准名称:数控机床用夹具件 中型槽定位长方形基础板
中标分类: 航空、航天 >> 航空器与航天器制造用设备 >> 夹具
发布日期:1996-09-13
实施日期:1997-01-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
页数:1页
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所属分类: 航空 航天 航空器与航天器制造用设备 夹具
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforTearStrengthofConventionalVulcanizedRubberandThermoplasticElastomers
【原文标准名称】:传统硫化橡胶和热塑性弹性体的撕裂强度的标准试验方法
【标准号】:ASTMD624-2000(2007)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D11.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:constrainedpathtear;nickedtearspecimen;tearpropagation;tearresistance;tearstrength;trousertear;Elastomericrubbermaterials;Tearresistance;Thermoplasticelastomers(TPE);Vulcanizationcharacteristics
【摘要】:Vulcanizedrubberandthermoplasticelastomers(TPE)oftenfailinserviceduetothegenerationandpropagationofaspecialtypeofrupturecalledatear.Thistestmethodmeasurestheresistancetotearingaction.Tearstrengthmaybeinfluencedtoalargedegreebystress-inducedanisotropy(mechanicalfibering),stressdistribution,strainrate,andtestpiecesize.Theresultsobtainedinatearstrengthtestcanonlyberegardedasameasureundertheconditionsofthatparticulartestandmaynothaveanydirectrelationtoserviceperformance.Thesignificanceofteartestingmustbedeterminedonanindividualapplicationorproductperformancebasis.1.1Thistestmethoddescribesproceduresformeasuringapropertyofconventionalvulcanizedrubberandthermoplasticelastomerscalledtearstrength.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:83_060
【页数】:9P.;A4
【正文语种】:


【英文标准名称】:StandardTestMethodforTensileStrengthandElongationofPressure-SensitiveTapes
【原文标准名称】:压敏胶纸带抗拉强度和弹性的标准试验方法
【标准号】:ASTMD3759/D3759M-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【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】:D10.14
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:breakingenergy;breakingstrength;elongation;pressure-sensitivetape;tensilestrength
【摘要】:Thistestmethodprovidesinformationthatcanbeusedinmaterialspecificationsforproductdesignandqualityassuranceapplications.Itcanbeusedincomparingdifferentproducts.Theuseofthistestmethodmustberelatedtothepurposeforwhichthetestisperformed.Onepurposeisfordeterminingtherelativestrengthofthetapeinthesizeinwhichitispurchasedorused.Anotherpurposeistoidentifyorcharacterizeaparticularbackingmaterial.5.2.1Thetestmaybeperformedonthetapeas-received,thatis,withoutcuttingthematerialtoaspecimenwidthlessthantheas-receivedwidth.Usuallytapeswiderthan48mm[2in.]arenottesteddueprincipallytothelimitationsofequipment.Tapesasnarrowasapproximately3mm[0.125in.]canbetested.5.2.2Thetestmaybeperformedonaspecimencutfromwithinthesamplematerialboundariesusingasharprazorcutter,suchasthatdefinedinSection6.Thismethodisusuallyusedformaterialcharacterization,determiningqualityofconformance,andforspecificationcompliance.Stretchcharacteristicsofelongationatbreakorforcetoaspecifiedelongationcanberelatedtothetapersquo;intendeduseorforidentifyingorcharacterizingamaterial.1.1Thistestmethodcoversthemeasurementoftensilestrengthatbreak(breakingstrength)andstretchproperties(elongation)forpressure-sensitivetapesandlabels.Itincludesproceduresformachinedirectionandcrossdirection,forhigh-strengthfilamentreinforcedbackingsandforhighstretchbackings.Italsoincludesaprocedureforobtainingforce("F"value)inconjunctionwithaspecifiedelongation.Theseproceduresemployaconstant-rate-of-extension(CRE)-typetestingmachine.1.2ThevaluesstatedineitherSIorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;conversionsbetweenmeasurementsystemsmustbeconductedcarefully.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G39
【国际标准分类号】:
【页数】:7P.;A4
【正文语种】:英语