【英文标准名称】:StandardTestMethodsforRubberPropertiesinCompressionorShear(MechanicalOscillograph)
【原文标准名称】:在压缩应力和剪切应力下橡胶特性的试验方法(机械示波器)
【标准号】:ASTMD945-2006
【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】:D11.14
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:炭黑;压力荷载;抗压强度;天然橡胶;特性;橡胶;剪切强度;合成橡胶;试验
【英文主题词】:chronograph;compression;creep;deflection;deformation;dynamicmodulus;elevatedtemperature;hysterisis;initialcreep;kineticenergy;lowtemperature;mechanicaloscillograph;pointmodulus;resilience;set;shear;staticmodulus;strain;stress;su
【摘要】:Therubberpropertiesthataremeasurablebythesetestmethodsareimportantfortheisolationandabsorptionofshockandvibration.Thesepropertiesmaybeusedforqualitycontrol,developmentandresearch.Measurementsincompressionareinfluencedbyspecimenshape.Thisshapefactormaybedescribedastheratiooftheloadedsurfaceareatotheunloadedsurfacearea.Inapplyingdatafromacompressionspecimen,shapefactormustbeincorporatedintothemathematicaltransferaltotheapplication.1.1ThesetestmethodscovertheuseoftheYerzleymechanicaloscillographformeasuringmechanicalpropertiesofrubbervulcanizatesinthegenerallysmallrangeofdeformationthatcharacterizesmanytechnicalapplications.Thesepropertiesincluderesilience,dynamicmodulus,staticmodulus,kineticenergy,creep,andsetunderagivenforce.Measurementsincompressionandsheararedescribed.,1.2Thetestisapplicableprimarily,butnotexclusively,tomaterialshavingstaticmoduliatthetesttemperaturesuchthatforcesbelow2MPa(280psi)incompressionor1MPa(140psi)inshearwillproduce20%deformation,andhavingresiliencesuchthatatleastthreecompletecyclesareproducedwhenobtainingthedampedoscillatorycurve.Therangemaybeextended,however,byuseofsupplementarymassesandrefinedmethodsofanalysis.Materialsmaybecomparedeitherundercomparablemeanstressormeanstrainconditions.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Foraspecificwarningsee.
【中国标准分类号】:G34
【国际标准分类号】:
【页数】:11P.;A4
【正文语种】:


【英文标准名称】:Refrigerantcompressors.Methodforpresentationofperformancedata
【原文标准名称】:制冷压缩机.第2部分:性能数据的表示方法
【标准号】:BS3122Pt.2-1990
【标准状态】:作废
【国别】:英国
【发布日期】:1990-08-31
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:性能;流体设备;误差修正;制冷;制冷系统;压缩机;冷却设备;容积式压缩机;数据表示
【英文主题词】:compressors;fluidequipment;errorcorrection;refrigeration;refrigeratingsystems;coolingequipment;datarepresentation;performance;positive-displacementcompressors
【摘要】:
【中国标准分类号】:J73
【国际标准分类号】:27_200;97_040_30
【页数】:8P;A4
【正文语种】:英语