GB 4141.20-1984 小波纹手轮

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基本信息
标准名称:小波纹手轮
中标分类: 机械 >> 通用零部件 >> 操作件
替代情况:调整为JB/T 7273.1-1994
发布日期:
实施日期:1985-01-01
首发日期:
作废日期:
出版日期:
页数:2页
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所属分类: 机械 通用零部件 操作件
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【英文标准名称】:StandardTestMethodforPeelAdhesionofPressure-SensitiveTape
【原文标准名称】:压合带的皮层剥离粘着力的标准试验方法
【标准号】:ASTMD3330/D3330M-2004(2010)
【标准状态】:现行
【国别】:美国
【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】:D10.14
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:adhesiontobacking;adhesiontoliner;peeladhesionat90&x00B0;angle;peeladhesionat180&x00B0;angle;pressuresensitivetape;Adherence;Acceptancecriteria/testing;Adhesion--pressure-sen
【摘要】:Thesetestmethodsaretoolsforqualityassuranceuse.Givenspecificpressure-sensitivetapeandarequirementintermsoftheminimumormaximumpeelvalueexpectedforthistape,thedatafromthetestcanbeusedinconjunctionwithacceptancecriteria.TestMethodA,B,C,E,orFcanshowtherelativebondstrengthofagiventapetooneormoresurfaces(materialandtexture)ascomparedtothestandardstainlesssteelpanel.Substitutionofrepresentativesamplesofmaterialsinquestionforthestandardsteelpanelwouldsufficetodothis.TestMethodsA,B,C,EorFcannotbeusedtocomparetwopressure-sensitivetapesofthesametypebutofdifferentmanufacturefortheirabilitytoadheretoasurface.Thisisbecausethemeasuredpeelforceisnotnormalizedforafixedareaofstress.Theareaunderstressvarieswithbackingstiffnessandadhesiverheology(firmness).Twodifferenttapesseldomagreeintheseproperties.TestMethodDcanshowtheamountofforcerequiredtoremovealinerthatcoverstheadhesivesideofatapeataspecifiedpeelrate.Theforcewillbedifferentatotherpeelrates.Thesetestmethodsmaynotprovidedesigninformationasthereisusuallynodirectrelationshipbetweenpeeladhesionandanyfunctionalrequirement.1.1Thesetestmethodscoverthemeasurementofthepeeladhesionofpressure-sensitivetapes.1.1.1TestMethodAgivesameasureoftheadherence,whenpeeledat180x00B0;angle,toastandardsteelpanelortoothersurfaceofinterestforasingle-coatedtape.1.1.2TestMethodBgivesameasureoftheadherencetothebackingofasingle-coatedtape.1.1.3TestMethodCgivesameasureoftheadherenceofdouble-coatedtapetoastandardsteelpanelorothersurfaceofinterest.1.1.4TestMethodDgivesameasureoftheadherenceofthereleaselinertotheadhesiveofeithersingle-ordouble-coatedtape.1.1.5TestMethodEgivesameasureoftheadherenceofanadhesivetransfertapetoastandardsteelpanelorothersurfaceofinterest.1.1.6TestMethodFgivesameasureoftheadherence,whenpeeledat90x00B0;angle,toastandardsteelpanelorothersurfaceofinterestforasingle-coatedtape.1.2Thesetestmethodsprovideameansofassessingtheuniformityoftheadhesionofagiventypeofpressure-sensitiveadhesivetape.Theassessmentmaybewithinarolloftape,betweenrolls,orbetweenproductionlots.1.3Variationsineitherthetapebackingortheadhesive,orboth,affecttheresponse.Therefore,thesetestmethodscannotbeusedtopinpointthespecificcause(s)ofnon-uniformity.1.4Thesetestmethodsmaynotbeappropriatetotesttapeshavingrelativelystiffbackings,stiffliners,orbackingsshowinghighstretchatlowforces.Thesecharacteristicswillresultinahighvariabilityforthetestresponsewhichisnotatrueindicationoftherealnatureoftheadhesivebond.1.5ValuesstatedineitherSIorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents,therefore,eachsystemmustbeusedindependentlywithoutcombiningvaluesinanyway.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G38
【国际标准分类号】:83_180
【页数】:6P.;A4
【正文语种】:英语


【英文标准名称】:Thinparallelkeysandtheircorrespondingkeyways(Dimensionsinmillimetres)
【原文标准名称】:薄型平键及其键槽(以mm表示尺寸)
【标准号】:ISO2491-1974
【标准状态】:作废
【国别】:国际
【发布日期】:1974-08
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC14
【标准类型】:()
【标准水平】:()
【中文主题词】:规范;尺寸;紧固件;键;平键
【英文主题词】:Dimensions;Fasteners;Keys(engineering);Parallelkeys;Specifications
【摘要】:Alsospezifiesthematerialofthekeys,givestherelationwhichshouldbeobservedbetweenthediameterofshaftandthesectionofkey,andisofgeneralapplicationforcylindricalshaftends.Itisrecommendedthatthevaluesgivenbeadheredtoevenforspecialapplications.FornormaltaperkeysandcorrespondingkeywaysrefertoISO/R773.
【中国标准分类号】:J18
【国际标准分类号】:21_120_30
【页数】:3P;A4
【正文语种】:英语