0519-07091ce-布勒环模技术协议-卢译-律卢终

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1、TechnicalAgreementforCircularMouldBlankPurchaser:WuxiBuhlerSupplier:LiyangJinkunForgingandPressingCo.Ltd.I.PurposeThisagreementismadetostandardizeinspectionandacceptanceofcircularmouldroughmachiningworkpiecesofagranulator.II.ScopeofApplicationThisagreementisappliedtoX46Cr13forgedcircularmouldrou

2、ghmachiningworkpiecesproducedforBuhlerbyLiyangJinkunForgingandPressingCo.Ltd.III.TechnicalRequirements1.RawMaterials1.1Anelectric-arcfurnaceisadopted,andexternalrefiningandvacuumdegassingareadoptedforsmelting.1.2ChemicalcompositionshouldbeinaccordancewithTable1.Table1:Chemicalcompositionrequirem

3、entsofthecircularmould(unit:%)MaterialCSiMnPSCrNiMoVCuAlHX46Cr130.43~0.470.2~0.40.85~1.0≤0.03≤0.03note13.0~14.0≤0.25≤0.15≤0.1≤0.30.015~0.0352.5ppmNote:ClientsrequirethatthecontentofSisfrom0.02to0.03%.1.3NonmetallicinclusionThenonmetallicinclusiongradeshouldbestrictlycontrolledandbeevaluatedaccor

4、dingtoASTME45.Thelocationofsamplingcanbethesurfaceofthecircularmould.TheinclusiongraderequirementsarestatedinTable2.Table2:NonmetallicinclusionqualificationgradeTypesofnonmetallicinclusionQualificationgrade≤FineseriesRoughseriesA2.01.5B1.51.0C2.01.5D2.01.5DS1.5A+B+C+D+DS≤grade62.Forging2.1Freefo

5、rgingisadoptedforforging.Forgingheatingandcoolingafterforgingareimplementedbyprocess.Forgingdeformationisdividedintofourstageswhicharedrawingout,upsetting,upsettingpunchingandbearizing.Theforgingratioisgreaterthan5.1,Drawingoutforgingratioisgreaterthan2.2,Upsettingforgingratioisgreaterthan1.8.3,

6、Upsettingpunchingforgingratioisgreaterthan1.2.4,Bearizingforgingratioisgreaterthan1.7.Graph1ForgingProceduresandForgingRatio1.HeatTreatment1.1Hardness1.1.1Fortheconvenienceofmachining,spheroidizingannealingisadoptedforheattreatmentprocess.1.1.2Hardnessrequirements:TheaveragehardnessisfromHB180to

7、207.ThehardnessdifferenceofoneworkpiecebetweenthemaximumandtheminimumhardnessshouldnotexceedHB20,andthehardnessdifferenceofthesamebatchshouldnotexceedHB27.AportableLeebhardnesstesterverifiedbyDepartmentofMetrologyisappliedin