ASTM A839-2002(2008) 软磁用途的磷铁粉末冶金制造的零件技术规范

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【英文标准名称】:StandardSpecificationforIron-PhosphorusPowderMetallurgy(P/M)PartsforSoftMagneticApplications
【原文标准名称】:软磁用途的磷铁粉末冶金制造的零件技术规范
【标准号】:ASTMA839-2002(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:A06.02
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:coercivefieldstrength;iron-phosphorus;powdermetallurgy(P/M);P/Mparts;Metallographicanalysis/inspection;Permeability--magneticalloys;Phosphorusiron;Powdermetallurgy(P/M)materials--specifications;Coerciveforce;Electricalresistance/res
【摘要】:1.1Thisspecificationcoverspartsproducedfromiron-phosphoruspowdermetallurgymaterials.Thesepartsareusedinmagneticapplicationsrequiringhigherpermeabilityandelectricalresistivityandlowercoercivefieldstrengththanattainableroutinelyfrompartsproducedfromironpowder.1.2Twopowdertypesarecovered;TypeIcontainingnominally0.45%phosphorus,andTypeIIcontainingnominally0.8%phosphorus.1.3ThisspecificationdealswithP/Mpartsinthesinteredorannealedcondition.Shouldthesinteredpartsbesubjectedtoanysecondaryoperationthatcausesmechanicalstrain,suchasmachiningorsizing,theyshouldberesinteredorannealed.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.
【中国标准分类号】:H72
【国际标准分类号】:77_160
【页数】:4P.;A4
【正文语种】:英语