MIL-C-44210 (AMENDMENT 1)
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MIL-C-44210 (AMENDMENT 1), MILITARY SPECIFICATION: CHICKEN AND RICE, THERMOSTABILIZED, FOR MEAL, READY-TO-EAT (1 DEC 1987).
【英文标准名称】:StandardGuideforSteamTreatmentofFerrousPowderMetallurgy(P/M)Materials
【原文标准名称】:黑色粉末冶金(P/M)材料蒸汽处理的标准指南
【标准号】:ASTMB935-2005(2009)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【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】:B09.05
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:blackening;blackoxide;ferrousPMparts;ironoxide;magnetite;steam;Ferrousmetals/alloys--specifications;MIM(metalinjectedmolded)applications;PIM(powderinjectedmolding)applications;Steamblackening/treatment;Structuralbuildingmate
【摘要】:Theperformanceandqualityofsteam-treatedmaterialsdependsuponthesurfacecleanlinessofthematerialpriortosteamtreatmentandtheadequacyoftheprocessing.Steamtreatmentcanbeusedasadecorativecoating,producingablue-graytoablue-blackappearance.ItcanreducethesusceptibilityofferrousPMmaterialstofurtheroxidationandcorrosion,thusprovidingbettershelflife.Moresignificantly,improvementsinapparenthardness,compressivestrength,wearcharacteristics,andsomemechanicalproperties(seeAppendixX1)canbeobservedduetosteamtreatment.Thehardnessofmagnetite(Fe3O4)formedduringsteamtreatmentistypicallyequivalentto50HRC,andwhenpresentinsinteredmaterials,theirwearresistancecanbeimprovedsignificantly.Steamtreatmentisalsousedtosealpartsorprovideabasematerialforadditionalcoatings.SteamtreatedferrousPMmaterialsareusedinmanyindustries,includingautomotive,marine,homeappliancesandlawnandgardenapplications.1.1Thisguideisintendedasanaidinestablishingandmaintainingaprocedureforthesteamtreatment,alsoreferredtoassteamblackening,ofsinteredferrousPMmaterialsandtheappropriateuseandevaluationofthesematerials.AdditionalinformationconcerningtheeffectofthisprocessonferrousPMmaterialpropertiesiscontainedinAppendixX1.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H70
【国际标准分类号】:77_160
【页数】:3P.;A4
【正文语种】:英语
基本信息
标准名称: | 示波器校准仪检定规程 |
英文名称: | Verification Regulation of Oscilloscope Calibrator |
中标分类: |
综合 >>
计量 >>
无线电计量 |
替代情况: | 被JJG 278-2002代替 |
发布日期: | |
实施日期: | 2003-09-01 |
首发日期: | |
作废日期: | |
出版日期: | |
页数: | 16页 |
适用范围
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引用标准
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所属分类: 综合 计量 无线电计量