您的位置: 标准下载 » 国内标准 » 行业标准 »

TB/T 1486-1999 13号车钩用车钩托梁

作者:标准资料网 时间:2024-05-16 11:53:34  浏览:9650   来源:标准资料网
下载地址: 点击此处下载
基本信息
标准名称:13号车钩用车钩托梁
中标分类: 铁路 >> 机车车辆通用标准 >> 车钩与缓冲装置
替代情况:TB 1486-1983
发布部门:中华人民共和国铁道部
发布日期:1999-11-26
实施日期:2001-12-01
首发日期:
作废日期:
提出单位:铁道四方车辆研究所
归口单位:铁道四方车辆研究所
起草单位:铁道四方车辆研究所齐齐哈尔铁路车辆(集团)有限责任公司、铁道四方车辆研究所
起草人:吕月红、韩月荣、石振栓
出版社:中国铁道出版社
出版日期:2001-12-01
页数:4页
适用范围

本标准规定了13号车钩用车钩托梁的型式与尺寸、技术要求及标记等。
本标准适用于装用13号车钩用冲击座的铁道货车

前言

没有内容

目录

没有内容

引用标准

没有内容

所属分类: 铁路 机车车辆通用标准 车钩与缓冲装置
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforPropagationTearResistanceofPlasticFilmandThinSheetingbyPendulumMethod
【原文标准名称】:用摆锤法测定塑料薄膜与薄板抗扩展扯裂性的标准试验方法
【标准号】:ASTMD1922-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D20.19
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Elmendorf;nonrigidsheeting;plasticfilm;tear;thinsheeting;Elmendorfapparatus;Nonrigidplastics;Pendulumtest;Plasticsheetandfilm--tearresistance;Propagationtearresistance;Tearresistance;Thinsheeting
【摘要】:Thistestmethodisofvalueinrankingrelativetearingresistanceofvariousplasticfilmsandthinsheetingofcomparablethickness.Experiencehasshownthetesttohaveitsbestreliabilityonrelativelylessextensiblefilmsandsheeting.Variableelongationandobliquetearingeffectsonthemoreextensiblefilmsprecludeitsuseasapreciseproduction-controltoolforthesetypesofplastics.Thistestmethodshouldbeusedforspecificationacceptancetestingonlyafterithasbeendemonstratedthatthedatafortheparticularmaterialareacceptablyreproducible.Thistestmethodshouldbeusedforserviceevaluationonlyafteritsusefulnessfortheparticularapplicationhasbeendemonstratedwithanumberofdifferentfilms.Thistestmethodhasbeenwidelyusedasoneindexofthetearingresistanceofplasticfilmandthinsheetingusedinpackagingapplications.Whileitmaynotalwaysbepossibletocorrelatefilmtearingdatawithitsothermechanicalortoughnessproperties,theapparatusofthistestmethodprovidesacontrolledmeansfortearingspecimensatstrainingratesapproximatingsomeofthosefoundinactualpackagingservice.Duetoorientationduringtheirmanufacture,plasticfilmsandsheetingfrequentlyshowmarkedanisotropyintheirresistancetotearing.Thisisfurthercomplicatedbythefactthatsomefilmselongategreatlyduringtearing,evenattherelativelyrapidratesofloadingencounteredinthistestmethod.Thedegreeofthiselongationisdependentinturnonfilmorientationandtheinherentmechanicalpropertiesofthepolymerfromwhichitismade.Thesefactorsmaketearresistanceofsomefilmsreproduciblebetweensetsofspecimenstox00B1;5%ofthemeanvalue,whileothersmayshownobetterreproducibilitythanx00B1;50%.DataobtainedbythistestmethodmaysupplementthatfromTestMethodD1004,whereinthespecimenisstrainedatarateof50mm(2in.)perminute.However,specimengeometryandtestingspeedofthetwotestmethodsaredissimilar.Therateoftearinginthistestmethod,whilevaryingasafunctionofresistancetotear,isintherangefrom7.6to46m(300to1800in.)/min.Thereisnotadirect,linearrelationshipbetweentearingforceandspecimenthickness.Datafromthistestmethodareexpressedastearingforceinmillinewtons(orgrams-force,ifdesired),withspecimenthicknessalsoreported.Butsetsofdatafromspecimensofdissimilarthicknessareusuallynotcomparable.Therefore,onlydataatthesamethicknesscanbecompared.Formanymaterials,theremaybeaspecificationthatrequirestheuseofthistestmethod,butwithsomeproceduralmodificationsthattakeprecedencewhenadheringtothespecification.Therefore,itisadvisabletorefertothatmaterialspecificationbeforeusingthistestmethod.Table1ofClassificationSystemD4000liststheASTMmaterialsstandardsthatcurrentlyexist.1.1Thistestmethodcoversthedeterminationoftheaverageforcetopropagatetearingthroughaspecifiedlengthofplasticfilmornonrigidsheetingafterthetearhasbeenstarted,usinganElmendorf-typetearingtester.Twospecimensarecited,arectangulartype,andonewithaconstantradiustestinglength.Thelattershallbethepreferredorrefereespecimen.1.2Becauseof(1)difficultiesinselectinguniformlyidenticalspecimens,(2)thevaryingdegreeoforientationinsomeplasticfilms,and(3)thedifficultyfoundintestinghighlyextensibleorhighlyorientedmaterials,orboth,thereproducibilityofthetestresultsmaybevariableand,insomecases,notgoodormisleading.Provisionsaremadeinthetestmethodtoaddressob......
【中国标准分类号】:G33
【国际标准分类号】:83_140_10
【页数】:7P.;A4
【正文语种】:英语


【英文标准名称】:StandardConsumerSafetySpecificationforExpansionGatesandExpandableEnclosures
【原文标准名称】:伸缩门和伸缩围栏标准消费者安全规范
【标准号】:ASTMF1004-2010
【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】:F15.16
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:enclosure;expandableenclosures;expansiongates;gates;Accordian-stylegates;Bottomspacing;Children'sfurniture;Completely-boundedopenings;Consumersafetyspecifications(infants/children);Corrals;Expansiongates;Gates;Heightofsides;M
【摘要】:1.1Thisconsumersafetyspecificationcoversminimumsafetyperformancerequirements,testmethods,andrequirementsforlabelingandinstructionalmaterialtominimizehazardstoyoungchildrenresultingfromthenormaluseandreasonablyforeseeablemisuseandabuseofexpansiongatesandexpandableenclosures.1.2Productsknownasexpansiongatesandexpandableenclosures,orbyanyothername,whichareinthescopeofthisconsumersafetyspecificationareintendedforyoungchildrenagedsixmonthsthrough24months,andaredefinedinSection3.1.3ExpansiongatesandexpandableenclosuresdefinedinSection3arefordomesticuseandarenottobeconfusedwithothertypesofgatesorenclosuresthatmaybespecificallydesignedforcommercial,institutional,agricultural,petuse,oranyothersuchuse.1.4NoexpansiongateorexpandableenclosureasdefinedinSection3,thatis,producedaftertheapprovaldateofthisconsumersafetyspecificationeitherbylabelorothermeans,shallindicatecompliancewiththisspecificationunlessitconformstoalltherequirementscontainedherein.1.5Forexpediency,expansiongatesandexpandableenclosuresasdefinedinSection3willheretoforebereferredtointhisconsumersafetyspecificationasx201C;gatesx201D;andx201C;enclosuresx201D;unlessreferredtodefinitively.1.6Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.7Thefollowingpertainsonlytothetestmethodsportion,Section7,ofthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q70
【国际标准分类号】:97_190
【页数】:16P.;A4
【正文语种】:英语