ASTM B629-1977(2003) 电镀用钼和钼合金的制备

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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
【标准号】:ASTMB629-1977(2003)
【标准状态】:现行
【国别】:
【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(ASTM)
【起草单位】:B08.02
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:金属;温湿度预调节;金属覆层;覆层;电镀;钼;合金;金属的
【英文主题词】:molybdenum;molybdenumalloys;electroplating;
【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】:


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【英文标准名称】:Non-destructivetestingofwelds-Magneticparticletesting
【原文标准名称】:焊缝的无损检测.磁粉检测
【标准号】:BSENISO17638-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2010-01-31
【实施或试行日期】:2010-01-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:铁磁的;精整;磁粉探伤;材料;材料试验;金属的;金属;无损检验;容许性;安全;规范(验收);钢件焊接;钢;表面检验;试验类别;试验;试验条件;焊接接头;焊接;焊接工程;焊缝
【英文主题词】:Ferromagnetic;Finishes;Magnetic-particleflawdetection;Materials;Materialstesting;Metallic;Metals;Non-destructivetesting;Permissibility;Safety;Specification(approval);Steelwelding;Steels;Surfaceinspections;Testcategories;Testing;Testingconditions;Weldedjoints;Welding;Weldingengineering;Welds
【摘要】:ThisInternationalStandardspecifiestechniquesfordetectionofsurfaceimperfectionsinweldsinferromagneticmaterials,includingtheheataffectedzones,bymeansofmagneticparticletesting.Thetechniquesaresuitableformostweldingprocessesandjointconfigurations.Variationsinthebasictechniquesthatwillprovideahigherorlowertestsensitivity,aredescribedinAnnexA.ThisInternationalStandarddoesnotspecifyacceptancelevelsoftheindications.FurtherinformationonacceptancelevelsforindicationsmaybefoundinEN1291orinproductorapplicationstandards.
【中国标准分类号】:J33
【国际标准分类号】:25_160_40
【页数】:22P.;A4
【正文语种】:英语


【英文标准名称】:Studs,ThreadedEnd1.25d
【原文标准名称】:双头螺钉.旋入端≈1.25d
【标准号】:DIN939Bb.1-1951
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
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