【英文标准名称】:Railwaycomponents-Technicaldeliveryrequirements-Part2:Non-alloycarbonsteelbaseplates
【原文标准名称】:铁道部件.交货技术条件.第2部分:非合金碳钢垫板
【标准号】:ISO6305-2-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-02
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC17
【标准类型】:()
【标准水平】:()
【中文主题词】:验收检验;底板;部件;交货条件;尺寸公差;尺寸;作标记;生产;质量要求;钢轨底座板;铁路设施;铁路设备;铁路固定设备;铁道车辆;铁路;钢产品
【英文主题词】:
【摘要】:ThispartofISO6305specifiesthequalityrequirementsoftheproductandtheconditionsofacceptancetestingforrollednon-alloycarbonsteelbaseplatesforusewithflat-bottomrailwayrails.
【中国标准分类号】:S11;H52
【国际标准分类号】:45_080
【页数】:12P;A4
【正文语种】:英语
基本信息
| 标准名称： | 油田注水真空脱氧设计规范 |
| 中标分类： |
工程建设 >>
原材料工业及通信、广播工程 >>
石油工程 |
| 替代情况： | 被SY/T 0046-1999代替 |
| 发布日期： | |
| 实施日期： | 1991-12-01 |
| 首发日期： | |
| 作废日期： | 1999-12-01 |
| 出版日期： | |
| 页数： | 24页 |
适用范围
没有内容
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 原材料工业及通信 广播工程 石油工程
【英文标准名称】:StandardShearTestMethodforBulkSolidsUsingtheSchulzeRingShearTester
【原文标准名称】:利用锌基轴承环剪切试验机进行标准的剪切试验方法
【标准号】:ASTMD6773-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D18.24
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:bulksolid;effectiveangleoffriction;effectiveyieldlocus;flowfunction;flowability;JenikeShearCell;internalfrictionangle;kinematicwallfrictionangle;powder;SchulzeRingShearTester;translationalsheartester;unconfinedyie
【摘要】:Reliable,controlledflowofbulksolidsfrombinsandhoppersisessentialinalmosteveryindustrialfacility.Unfortunately,flowstoppagesduetoarchingandratholingarecommon.Additionalproblemsincludeuncontrolledflow(flooding)ofpowders,segregationofparticlemixtures,useablecapacitywhichissignificantlylessthandesigncapacity,cakingandspoilageofbulksolidsinstagnantzones,andstructuralfailures.Bymeasuringtheflowpropertiesofbulksolids,anddesigningbinsandhoppersbasedontheseflowproperties,mostflowproblemscanbepreventedoreliminated(1).Forbulksolidswithasignificantpercentageofparticles(typically,onethirdormore)finerthanabout6mm(x00BC;in.),theunconfinedyieldstrengthisgovernedbythefines(x2212;6mmfraction).Forsuchbulksolids,strengthandwallfrictiontestsmaybeperformedonthefinefractiononly.Thistestmethodcoversoperationofthemanually-controlledSchulzeRingShearTester.Anautomatedversionofthistesterisalsoavailable.Itsmethodoftestingbulksolidsissimilarinprincipletothatdescribedinthistestmethod.Note18212;Thequalityoftheresultproducedbythisstandardisdependentonthecompetenceofpersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection/etc.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.PracticeD3740wasdevelopedforagenciesengagedinthetestingorinspection(orboth)ofsoilandrock.Assuchitisnottotallyapplicabletoagenciesperformingthisstandard.However,usersofthisstandardshouldrecognizethattheframeworkofPracticeD3740isappropriateforevaluatingthequalityofanagencyperformingthisstandard.Currentlythereisnoknownqualifyingnationalauthoritythatinspectsagenciesthatperformthisstandard.1.1Thistestmethodcoverstheapparatusandproceduresformeasuringtheunconfinedyieldstrengthofbulksolidsduringbothcontinuousflowandafterstorageatrest.Inaddition,measurementsofinternalfriction,bulkdensity,andwallfrictiononvariouswallsurfacesareincluded.1.2Themostcommonuseofthisinformationisinthedesignofstoragebinsandhopperstopreventflowstoppagesduetoarchingandratholing,includingtheslopeandsmoothnessofhopperwallstoprovidemassflow.Parametersforstructuraldesignofsuchequipmentmayalsobederivedfromthisdata.Anotherapplicationisthemeasurementoftheflowabilityofbulksolids,forexample,forcomparisonofdifferentproductsoroptimization.1.3AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026.1.3.1Theproceduresusedtospecifyhowdataarecollected/recordedorcalculatedinthisstandardareregardedastheindustrystandard.Inaddition,theyarerepresentativeofthesignificantdigitsthatgenerallyshouldberetained.Theproceduresuseddonotconsidermaterialvariation,purposeforobtainingthedata,specialpurposestudies,oranyconsiderationsfortheuserx2019;sobjectives:anditiscommonpracticetoincreaseorreducesignificantdigitsofreporteddatatobecommensuratewiththeseconsiderations.Itisbeyo......
【中国标准分类号】:N70
【国际标准分类号】:59_080_01
【页数】:28P.;A4
【正文语种】:英语