【英文标准名称】:SpecificationforIron-PhosphorusPowderMetallurgy(P/M)PartsforSoftMagneticApplications
【原文标准名称】:软磁性磷铁粉末冶金技术零件规范
【标准号】:ANSI/ASTMA839-1997
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:粉末冶金;铁
【英文主题词】:powdermetallurgy;iron
【摘要】:Thisspecificationcoverspartsproducedfromironphosphorouspowdermetallurgymaterials.Thesepartsareusedinmagneticapplicationsrequiringhigherpermeabilityandelectricalresistivityandlowercoerciveforcethanattainableroutinelyfrompartsproducedfromironpowder.Twopowdertypesarecovered;TypeIcontainingnominally0.45%phosphorus,andTypeIIcontainingnominally0.8%phosphorus.ThisspecificationdealswithP/Mpartsinthesinteredorannealedcondition.Shouldthesinteredpartsbesubjectedtoanysecondaryoperationthatcausesmechanicalstrain,suchasmachiningorsizing,theyshouldbere-sinteredorannealed.Thevaluesstatedineithercustomary(cgs-emuandinch-pound)unitsorSIunitsaretoberegardedseperatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromtwosystemsmayresultinnonconformancewiththisspecification.
【中国标准分类号】:H72
【国际标准分类号】:77_160
【页数】:
【正文语种】:英语