DIN 9684-3-1997 农业拖拉机和机械.信号传送接口.第3部分:系统功能和识别符
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【英文标准名称】:Agriculturaltractorsandmachinery-Interfacesforsignaltransfer-Part3:Systemfunction,identifier
【原文标准名称】:农业拖拉机和机械.信号传送接口.第3部分:系统功能和识别符
【标准号】:DIN9684-3-1997
【标准状态】:作废
【国别】:德国
【发布日期】:1997-07
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:农业;农业机械;机械工程;设计;电子数据处理;农业工程;牵引车;信号传输;接口;系统结构;服务设施;识别;数据总线;数据服务;初始化;数据传送;总线系统;数据处理
【英文主题词】:
【摘要】:
【中国标准分类号】:B90;T68
【国际标准分类号】:65_060_10
【页数】:51P;A4
【正文语种】:德语
基本信息
标准名称: | 城镇燃气管网抢修和维护技术规程CJJ51-92 |
中标分类: |
工程建设 >>
供热、供气、空调及制冷工程 >>
供气工程 |
替代情况: | 被CJJ 51-2001替代 |
发布日期: | 1992-12-02 |
实施日期: | 1993-07-01 |
首发日期: | 1900-01-01 |
作废日期: | 2001-07-01 |
出版日期: | 1900-01-01 |
适用范围
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前言
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目录
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引用标准
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所属分类: 工程建设 供热 供气 空调及制冷工程 供气工程
【英文标准名称】:StandardTestMethodforDeterminingStrengthofAdhesivelyBondedRigidPlasticLap-ShearJointsinShearbyTensionLoading
【原文标准名称】:用抗拉荷载法在剪切胶粘剂粘接刚性塑料搭接接头的抗剪切强度的标准试验方法
【标准号】:ASTMD3163-2001(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【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】:D14.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:adhesivebonds;plastic;shearstrength;tension;Bondstrength--adhesives(plastic-to-plastic);Sheartesting--adhesives;Tensileproperties/testing--adhesivebonds;Adhesive-bondedplastics;Adhesivejoints;Lap-shearapplications/testing;Rigidplastic
【摘要】:Duetotheincreaseduseofadhesive-bondedplasticsasaresultoftheinherentadvantagesaffordedbybondedratherthanmechanicallyfastenedjoints,particularlythealleviationofstressraisersandstresscracking,thereisaneedforstandardtestsbywhichjointsofvariousplasticsubstratesandadhesivescanbecompared.Thistestmethodisintendedtomeetsuchaneed.Thistestmethodislimitedtotesttemperaturesbelowthesofteningpointofthesubjectadherends,andisnotintendedforuseonanisotropicadherendssuchasreinforcedplasticlaminates.Themisuseofstrengthvaluesobtainedfromthistestmethodasallowabledesign-stressvaluesforstructuraljointscouldleadtoproductfailure,propertydamage,andhumaninjury.Theapparentshearstrengthofanadhesiveobtainedfromagivensmallsingle-lapspecimenmaydifferfromthatobtainedfromajointmadewithdifferentadherendsorbyadifferentbondingprocess.Thenormalvariationoftemperatureandmoistureintheserviceenvironmentcausestheadherendsandtheadhesivetoswellandshrink.Theadherendsandadhesivearelikelytohavedifferentthermalandmoisturecoefficientsofexpansion.Eveninsmallspecimens,short-termenvironmentalchangescaninduceinternalstressesorchemicalchangesintheadhesivethatpermanentlyaffecttheapparentstrengthandothermechanicalpropertiesoftheadhesive.Theproblemofpredictingjointbehaviorinachangingenvironmentisevenmoredifficultifadifferenttypeofadherendisusedinalargerstructuraljointthanwasusedinthesmallspecimen.Theapparentshearstrengthmeasuredwithasingle-lapspecimenisnotsuitablefordeterminingallowabledesignstressesfordesigningstructuraljointsthatdifferinanymannerfromthejointstestedwithoutthoroughanalysisandunderstandingofthejointandadhesivebehaviors.Single-laptestsmaybeusedforcomparingandselectingadhesivesorbondingprocessesforsusceptibilitytofatigueandenvironmentalchanges,butsuchcomparisonsmustbemadewithgreatcautionsincedifferentadhesivesmayresponddifferentlyindifferentjoints.SeeGuideD4896forfurtherdiscussionoftheconceptsrelativetointerpretationofadhesivebondedsingle-lapjoints.1.1ThistestmethodisintendedtocomplementTestMethodD1002andextenditsapplicationtosingle-lapshearadhesivejointsofrigidplasticadherends.Thetestmethodisusefulforgeneratingcomparativeshearstrengthdataforjointsmadefromanumberofplastics.Itcanalsoprovideameansbywhichseveralplasticsurfacetreatmentscanbecompared.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_180
【页数】:3P.;A4
【正文语种】:英语