ASTM B629-1977(2008) 电镀用钼和钼合金的制备的标准实施规程

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【英文标准名称】:StandardPracticeforPreparationofMolybdenumandMolybdenumAlloysforElectroplating
【原文标准名称】:电镀用钼和钼合金的制备的标准实施规程
【标准号】:ASTMB629-1977(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1977
【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】:B08.02
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Molybdenumisusedinengineeringapplicationswherestrengthandrigidityofcomponentpartsareneeded,especiallyathightemperatures.Itsgoodstrengthathightemperatures,lowvaporpressure,andgoodimpactandcreepresistancemakeitattractiveforload-bearingitemssuchasturbineblades,mechanicalseals,rocketmotorparts,heatingelements,andelectronicdevices.Molybdenum,however,iseasilyoxidized,andtheoxidesarenotprotective.Thevolatilityoftheoxidesabove800x00B0;Ccanlead,inthecaseofunprotectedparts,tocatastrophicoxidationandtolossesindimensions.Electroplatedcoatingsareappliedtomolybdenumtopreventoxidation,topreventseizingandgalling,andtoassistjoiningbysoldering,brazing,anddiffusionbonding.1.1Thispracticecoversaprocedureforpreparingmolybdenumanditsalloysforelectroplating.Theprocedureutilizestechniques,equipment,andchemicalsthatarecommontoelectroplating.Specializedproceduressuchashydrogenheattreatmentandfusedsaltpicklingarenotincluded.Theseandotherprocedurescanbefoundinthereferenceslistedattheendofthispractice.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H63
【国际标准分类号】:77_120_99
【页数】:2P.;A4
【正文语种】:英语