【英文标准名称】:StandardTestMethodsforApparentPorosity,LiquidAbsorption,ApparentSpecificGravity,andBulkDensityofRefractoryShapesbyVacuumPressure
【原文标准名称】:用真空压力法测定成型耐火材料表观空隙率、吸水性、表观比重和体密度的标准试验方法
【标准号】:ASTMC830-2000(2006)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2000
【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】:C08.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:apparentporosity;apparentspecificgravity;bulkdensity;hydration;refractoryshapes;vacuumpressure;waterabsorption;Bulkdensity;Density--carbon/graphite;Liquidabsorption;Porosity--apparent;Refractories(general);Specificgravity--refr
【摘要】:Apparentporosity,waterabsorption,apparentspecificgravity,andbulkdensityareprimarypropertiesofrefractoryshapes.Thesepropertiesarewidelyusedintheevaluationandcomparisonofproductqualityandaspartofthecriteriaforselectionanduseofrefractoryproductsinavarietyofindustrialapplications.Thesetestmethodsareusedfordetermininganyorallofthesepropertiesandareparticularlyusefulfortestinghydratableproducts.Thesetestmethodsareprimarystandardmethodsthataresuitableforuseinqualitycontrol,researchanddevelopment,establishingcriteriaforandevaluatingcompliancewithspecifications,andprovidingdatafordesignpurposes.Fundamentalassumptionsinherentinthesetestmethodsare:Thetestspecimensconformtotherequirementsforsize,configuration,andoriginalfaces,Theopenporesofthetestspecimensarefullyimpregnatedwithliquidduringthevacuum-pressuretreatment,andTheblottingofthesaturatedtestspecimensisperformedasspecifiedinaconsistentanduniformmannertoavoidwithdrawingliquidfromthepores.Deviationfromanyoftheseassumptionsadverselyaffectsthetestresults.Inlaboratorystudiesinvolvingcastablespecimen,abiaswasnotedbetweenformed2X2X2x2013;in(50X50X50x2013;mm)andspecimensquarteredfromlarger9X4.5X2.5x2013;in(228X114X64x2013;mm)castspecimens.Additionally,anerrorintheapparentporositydeterminationwasfoundoncastableswheneverthespecimenswereheatedto1500x00B0;F(816x00B0;C)andthenexposedtowaterasasaturationmedia.Theerrorwasattributedtoreactivityofcementwithwaterandsubsequentre-hydrationofcementphases.Thehigherthecementlevelofthecastable,thegreatertheerrornoted.Itwasconcludedthatanerrorinporosityvaluescouldoccurforrefractorymaterialshavingapotentialtoformhydratedspecieswithwater.Testingunderthesameconditionsinkeroseneproducedresultsthatwerebelievedtobemoreaccurate,butthedatasuggestedthatthekerosenemightnothavesaturatedtheopenporesofcastspecimenasreadilyaswater.SupportingdatawerefiledatASTMheadquartersandcanbeobtainedbyrequestingresearchreport1014.Certainprecautionsmustbeexercisedininterpretingandusingresultsfromthesetestmethods.Allfourpropertyvaluesareinterrelatedbyatleasttwoofthethreebasedatavaluesgeneratedduringtesting.Thus,anerrorinanybasedatavaluewillcauseanerrorinatleastthreeofthepropertyvaluesforagiventestspecimen.Certainoftheproperties,thatis,apparentspecificgravityandbulkdensity,arefunctionsofotherfactorssuchasproductcomposition,compositionalvariabilitywithinthesameproduct,imperviousporosity,andtotalporosity.Generalizationsonorcomparisonsofpropertyvaluesshouldbejudiciouslymadebetweenlikeproductstestedbythesetestmethodsorwithfullrecognitionofpotentiallyinherentdifferencesbetweentheproductsbeingcomparedorthetestmethodused.Whenaliquidotherthanwaterisused,suchastypesofkeroseneormineralspirits,specificgravitymustbeknownbyeitherdeterminationormonitoringonacontrolledbasis.Specificgravitywillchangeduetodifferentgradesofliquids,evaporation,orcontaminationwithdirtorforeignmaterial.Thetestshouldnotberuniftheliquidbecomesdirty,foamy,orchangescolor,becauseforeignparticlescanblockporesandpreventimpregnationofthesample.1.1Thesetestmethodscoverthedeterminationofthefollowingpropertiesofrefractoryshapes:1.1.1Apparen......
【中国标准分类号】:Q40
【国际标准分类号】:81_080
【页数】:5P.;A4
【正文语种】:英语


Product Code:SAE AMS5707
Title:Nickel Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings, 58Ni - 19.5Cr - 13.5Co - 4.3Mo - 3.0Ti - 1.4Al - 0.05Zr - 0.006B, Consumable Electrode Remelted or Vacuum Induction Melted, 1825 to 1900 掳F (996 to 1038 掳C) Solution, Stabilization, and Precipitation Heat Treated
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers a corrosion and heat-resistant nickel alloy in the form of bars, forgings, flash welded rings, and stock for forging or flash welded rings.