拉力试棒取样标准

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1、SpécificationtechniqueRef:9059005EngineeringStandardRev:DDC1070313Page:1/14Date:10/07/07Titre/title:GrayIronforPerformerScrollsRédaction:A.LandréApprobation:J-P.Bodart1.0SCOPE1.1Propose-ThisspecificationdescribesthetypeofgrayironusedinthemanufacturingofPerformerscrolls.Thiscast

2、ironmaterialconformstostandardASTMA48-94aorNFEN1561,althoughitsmechanicalcharacteristicsareintermediary.1.2Applicability-ThisspecificationappliestoallDanfoss-ManeuropPerformerscrolls.Themaximumtemperaturetakenintoaccountinthisspécificationis450°F(230°C).2.0APPLICABLEDOCUMENTS2.

3、1Référenceddocuments-ISO945-1994orASTMA247-67NFEN1561orASTMA48-94a2.2Relateddocuments-None3.0GLOSSARYNone4.0REQUIREMENTS4.1General-Themechanicalcharacteristicsofthecastironshouldallowaproperresistanceofthepartsunderoperatingconditonsencounteredduringqualificationtestingandprope

4、rmachiningpropertiesthatcomplywithDanfoss-Maneurop’smanufacturingequipmentandprocess.4.2Chemicals-Inordertoavoidanycompatibilityproblemwithrefrigerantandoil,theuseofanyrustprotectionorgrayironcoatingshouldnotbedonewithoutthewrittenagreementofDanfossManeurop.4.3Méchanicalandmeta

5、llurgical-ThemechanicalstrengthoftheinvolutesofthePerformerscrollsisdirectlylinkedtothemechanicalstrengthofthegrayironandtothesizeofthegraphitelamellaswherethemachinedinvoluteisattachedtothescrollConfidential:PropertyofDanfossCommercialCompressors,Trevoux,France.Nottobehandedov

6、erto,copiedorusedbythirdparty.UseofcontentstobeauthorisedbyDanfossCommercialCompressors.D059ESpécificationtechniqueRef:9059005EngineeringStandardRev:DDC1070313Page:2/14Date:10/07/07Titre/title:GrayIronforPerformerScrollsRédaction:A.LandréApprobation:J-P.Bodartbaseplate.Thechart

7、belowgivesthemechanicalpropertiesandthegraphitesizesaccordingtotheapplicationofthescrolls(refrigerant,airconditionning,refrigeration,other).Thegraphitecontainedintothecastironmustalwaysbeshape«I»,nographiteaccumulationisallowed.TheevaluationofthegraphitesizeisdonebytheuseofISO9

8、45-1994standard.Theconformityofthewrapmechanicalstreng