【英文标准名称】:ButtweldingEnds
【原文标准名称】:对接焊端
【标准号】:ASMEB16.25-2003
【标准状态】:作废
【国别】:美国
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国机械工程师协会(ASME)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:焊接端;对接焊;规范(验收);尺寸;焊接接头;焊接工艺;公差(测量);管连接件
【英文主题词】:Buttwelding;Dimensions;Pipecouplings;Specification(approval);Tolerances(measurement);Weldedjoints;Weldingends;Weldingprocesses
【摘要】:ThisStandardcoversthepreparationofbuttweldingendsofpipingcomponentstobejoinedintoapipingsystembywelding.Itincludesrequirementsforweldingbevels,forexternalandinternalshapingofheavy-wallcomponents,andforpreparationofinternalends(includingdimensionsandtolerances).Coverageincludespreparationforjointswiththefollowing:nobackingrings;splitornoncontinuousbackingrings;solidorcontinuousbackingrings;consumableinsertrings;andgastungstenarcwelding(GTAW)oftherootpass.Detailsofpreparationforanybackingringmustbespecifiedwhenorderingthecomponent.
【中国标准分类号】:J33
【国际标准分类号】:23_040_40
【页数】:24P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodsforOilContent,Oil-ImpregnationEfficiency,andInterconnectedPorosityofSinteredPowderMetallurgy(PM)ProductsUsingArchimedesx2019;Principle
【原文标准名称】:用阿基米德原理测定油含量、油浸渍效率和烧结粉末冶金(PM)制品的互联孔隙的标准试验方法
【标准号】:ASTMB963-2008
【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】:B09.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:mpregnationefficiency;interconnectedporosity;oilcontent;oil-impregnatedbearings;oil-impregnationefficiency;oil-impregnatedPMparts
【摘要】:Oilcontentvaluesaregenerallycontainedinspecificationsforoil-impregnatedPMbearings.Theoil-impregnationefficiencyprovidesanindicationofhowwelltheas-receivedpartshadbeenimpregnated.Thedesiredself-lubricatingperformanceofPMbearingsrequiresaminimumamountofinterconnectedporosityandsatisfactoryoilimpregnationoftheinterconnectedporosity.Aminimumoilcontentisspecified.Theresultsfromthesetestmethodsmaybeusedforqualitycontrolorcompliancepurposes.1.1Thisstandarddescribesthreerelatedtestmethodsthatcoverthemeasurementofphysicalpropertiesofoil-impregnatedpowdermetallurgyproducts.1.1.1Determinationofthevolumepercentofoilcontainedinthematerial.1.1.2Determinationoftheefficiencyoftheoil-impregnationprocess.1.1.3Determinationofthepercentinterconnectedporositybyoilimpregnation.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.ThevaluesinparenthesesareconvertedinaccordancewithIEEE/ASTMSI10andareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H16
【国际标准分类号】:77_160
【页数】:5P.;A4
【正文语种】:英语