DIN 25623-6-1966 铁路车辆零件术语.车窗、活门、车厢通风设备、货车用带紧固装置的有枢轴后门
时间:2024-05-21 19:14:49 来源: 标准资料网 作者：标准资料网 阅读：9565
【英文标准名称】:Termsforrailwayvehicleparts;windows,trap-doors,ventilationofcompartments,pivotedenddoorswithfasteningdeviceforwagons
【原文标准名称】:铁路车辆零件术语.车窗、活门、车厢通风设备、货车用带紧固装置的有枢轴后门
【标准号】:DIN25623-6-1966
【标准状态】:作废
【国别】:德国
【发布日期】:1966-10
【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】:熔断器;铁路车辆零部件;窗;定义
【英文主题词】:railways;railwayvehiclecomponents;fuses;windows;definition;railwayapplications;definitions
【摘要】:
【中国标准分类号】:S34;S30
【国际标准分类号】:45_060_20;01_040_45
【页数】:2P;A4
【正文语种】:德语
【英文标准名称】:StandardSpecificationforContactMolded"Fiberglass"(Glass-Fiber-ReinforcedThermosettingResin)Flanges
【原文标准名称】:接触模制玻璃纤维(玻璃-纤维-增强热固树脂)法兰的标准规范
【标准号】:ASTMD5421-1993
【标准状态】:作废
【国别】:美国
【发布日期】:1993
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:阀门;呋喃;纤维;塑料;法兰;配件;玻璃;零件;接合边界;接触模制纤维;接触模制法兰;整数边缘;热老化增强塑料;聚乙烯塑料;热老化树脂
【英文主题词】:parts;flanges;buttweld;contactmoldedfiberglass;contactmoldedflanges;fiber;integralflange;plasticsreinforcedthermosetting;polyesterplastics;reinforcedthermosettingresin;valves;plastic;glass;
【摘要】:
【中国标准分类号】:J15
【国际标准分类号】:23_040_60
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDeterminationoftheBreakawayFrictionCharacteristicsofRollingElementBearings
【原文标准名称】:测定滚动体轴承破裂摩擦特性的标准试验方法
【标准号】:ASTMG182-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:G02.50
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:轴承;测定;元件;摩擦;滚动轴承;滚动体;试验
【英文主题词】:coefficientofrollingfriction;frictiontesting;rolling;rollingfriction
【摘要】:Thistestisasimple,effectivewayofdeterminingtheabilityofbearingstorollfreely.Mostbearingmanufacturersdonotsupplyinformationonthebreakawayfrictioncoefficientoftheirproductsandifthisisadesignfactor,usersoftenbuycandidatebearingsandtrythemuntiltheyfindonethatappearstooperatefreerthantheothers.Thistestallowsquantificationofthebreakawayfrictioncharacteristicsofbearings.Thistestassessesthefrictionofabearingasatribosystemwhichincludesitsconstructionandlubrication.Ithasshowntocorrelatewithuse.Ifabearinghasalowbreakawayangleinthistest,itsbreakawayfrictionwillbelowerinservicethanthesamesizebearingsthatdisplayedahigherbreakawayangleinthistest.Breakawayfrictionofbearingsisimportantininstrumentswhereforcesarelightandthebearingsareusedaspivotsratherthanforcontinuedrotation.Lowfrictionisoftenimperativeforproperdeviceoperation.Bearingswithlowbreakawayfrictionareoftensoughtforwebhandlingrollers.Manyrollersaredrivenonlybytangentialwebcontactandslippagecanoftendamagetheweb.Lowfrictionbearingsarerequired.Thistestisusefulforscreeningbearingsforanyapplicationswherebreakawayfrictionisadesignconcern.1.1ThistestmethodisanextensionofTestMethodG164andusesaninclinedplaneandapaperclipridertodetectthepresenceorabsenceoflubricantsonthesurfacesofflexiblewebs.Astudytoidentifyfreespinningorlowrollingfrictionbearingsindicatedthatthepaperclipfrictiontestcouldbeusedforrollingfrictionbysimplyreplacingthepaperclipwitharollingelementbearingonanaxle.Theangleoftheinclinedplaneatinitiationofrollingisthebreakawayangle.Thistestmethodcanbeusedtomeasuretheangleatbreakawayofsmalldiameter(upto100mmoutsidediameter)rollingelementbearings.Thebearingsthathavebeentestedinthedevelopmentofthismethodareconventionalballbearingswithdifferentseparators,seals,anddifferentconditionsoflubrication(none,oil,greases,andsoforth),butthereisnotechnicalreasonwhythistestmethodwouldnotworkwithbearingsofotherdesign,includingplainbearings.Rollingelementbearingslikeanyslidingsystemcanhavefrictioncharacteristicsatbreakawaythataredifferentthanrollingcontinuously.Asisthecasewithmostinclinedplanefrictiontests,thetestonlyproducesthefrictioncharacteristicattheonsetofmeasurablerolling,usingtheangle()whenmeasurablerollingcommences.Theobjectiveofthistestisanassessmentofbreakawayrollingfrictioncharacteristicstoassistmachinedesignersintheselectionofrollingelementbearingsforinstrumentpivotsandthelikewherebreakawayfrictionisaconcern.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J11
【国际标准分类号】:21_100_20
【页数】:5P.;A4
【正文语种】: