【英文标准名称】:StandardTestMethodforLossofMassinHydrogenforCobalt,Copper,Tungsten,andIronPowders(HydrogenLoss)
【原文标准名称】:钴、铜、钨和铁粉用氢质量损失(氢还原减重)的标准试验方法
【标准号】:ASTME159-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:B09.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:chemicalanalysis;cobaltpowder;copperpowder;hydrogenloss;ironpowder;metalpowders;oxygencontent;tungstenpowder;Chemicalanalysis;Copperpowder;Hydrogencontent--metals/alloys;Hydrogenloss;Ironpowder;Metalpowders;Oxides(hydrog
【摘要】:Theoxygencontentofapowderaffectsbothitsgreenandsinteredproperties.Hydrogenlossisatermwidelyusedinthepowdermetallurgyindustryeventhoughthemeasurementrepresentsanapproximateoxygencontentofthepowder.Oxygenisthemostcommonhydrogen-reducibleconstituentofmetalpowders,andthisproceduremaybeusedasameasureofoxygen,reducibleunderthetestconditions,ifotherinterferingelementsareabsent.1.1Thistestmethodcoversthedeterminationofthemassofhydrogen-reducibleconstituentsinthefollowingmetalpowders:cobalt,copper,iron,andtungsten.1.2Thistestmethodisusefulforcobalt,copper,andironpowdersintherangefrom0.05to3.0%oxygen,andfortungstenpowderintherangefrom0.01to0.50%oxygen.1.3Thistestmethoddoesnotmeasuretheoxygencontainedinoxidessuchassiliconoxide(SiO2),aluminumoxide(Al2O3),magnesiumoxide(MgO),calciumoxide(CaO),titaniumdioxide(TiO2),etc.thatarenotreducedbyhydrogenatthetesttemperatures.1.4Fortotaloxygencontent,vacuumorinertgasfusionmethodsareavailable(seeTestMethodsE1019).1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H16
【国际标准分类号】:77_160
【页数】:3P.;A4
【正文语种】:英语