DIN 17022-5 2000 Heat treatment of ferrous materials surface hardness.pdf

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1、DEUTSCHENORMMarch2000Heattreatmentofferrousmaterials{Part5:Surfacehardening17022-5ICS25.200WärmebehandlungvonEisenwerkstoffen–VerfahrenderWärmebehandlung–Teil5:RandschichthärtenInkeepingwithcurrentpracticeinstandardspublishedbytheInternationalOrganizationforStandardization(ISO),acommahasbeenuse

2、dthroughoutasthedecimalmarker.ContentsPageForeword.............................................................................11Scope.............................................................................12Normativereferences...............................................................

3、23Concepts..........................................................................24Principleofmethod.................................................................25Identificationofheattreatmentcondition..............................................26Procedure..............................

4、...........................................36.1Pretreatmentandpreparation........................................................36.2Austenitizing......................................................................46.3Quenching..................................................................

5、......66.4Subzerotreatment.................................................................76.5Tempering........................................................................87Secondarytreatment................................................................88Heattreatmentmedia...............

6、................................................88.1Coolingandquenchingmedia........................................................88.2Subzerotreatmentmedia............................................................89Effectsofsurfacehardening...................................................

7、......89.1Effectsoncasestructure............................................................89.2Effectsonhardnessandeffectivecasedepth...........................................99.3Effectsonshapeanddimensions......................