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High Quality Casting Girth Gear for Ball Mill / Rotary Kiln1
Power Transmission PartsGirth GearGear
CITICHL HEAVY INDUSTRIES CO., LTD.
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Product Description High quality casting girth gear for ball mill / rotary kiln Process: Forging/CastingNormalizing&Tempering-Proof MachinnigQuenching&TemperingFinish Machining(Teeth Grinding)We can offer you in various process conditions Solutions for Many End Markets and Applications--Mining--Metallurgy--Power Generation--Cement Plant--Port Machinery--Oil and natural--Paper making--OEM gear case--General IndustrialSpecificationMachining ScopeSizeOD Max 16mOne Piece of Gear: OD Max 13mAssemble Gear: According to drawingsHobbing Modulus10-60Milling ModulusUp to 120Spiral Modulus1-15Accuracy GradeMilling: 6 gradeHobbing: 8 gradeMaterialAlloy steel: 42CrMo4, 34CrNiMo6 etc.Carbon steel: C45E, 1030Carburizing steelQuenched and tempered steelHeat treatmentQuenching & Tempering, Surface QuenchingTeeth ProfileSpur, Helical, Herringbone, Crown, Spiral, Worm and shaft Inspection and Test Outline of Girth Gear:No.ItemInspection AreaAcceptance CriteriaInspection StageCertificates1Chemical CompositionSampleMaterial RequirementWhen SmeltingAfter Heat TreatmentChemical Composition Report2Mechanical PropertiesSample(Test Bar on the Gear Body)Technical RequirementAfter Heat TreatmentMechanical Properties Report3Heat TreatmentWhole BodyManufacturing StandardDuring Heat TreatmentHeat Treatment ReportCurves of Heat Treatment4Hardness TestTooth Surface, 3 Points Per 90°Technical RequirementAfter Heat TreatmentHardness Teat ReportAfter Semi Finish Machining5Dimension InspectionWhole BodyDrawingAfter Semi Finish MachiningDimension Inspection ReportFinish Machining6Magnetic Power Test (MT)Tooth SurfaceAgreed StandardAfter Finish Gear HobbingMT Report7UTSpokes PartsAgreed StandardAfter Rough MachiningUT ReportAfter WeldedAfter Semi Finish Machining8PTDefect AreaNo Defect IndicatedAfter DiggingAfter WeldedPT Record9Mark InspectionWhole BodyManufacturing StandardFinal InspectionPictures10Appearance InspectionWhole BodyCIC's RequirementBefore Packing(Final Inspection) 11Anti-rust InspectionWhole BodyAgreed Anti-rust AgentBefore PackingPictures 12Packing InspectionWhole BodyAgreed Packing FormDuring PackingPictures Testing Process:· QA DOC: Chemical Composition Report, Mechanical Properties Report, UT Report, Heat Treatment Report, Dimensions Check Report· The data on chemical composition report and mechanical properties report are approved by third party, Luoyang Ship Material Research Institute, CSIC.· UT test: 100% ultrasonic test according to EN10228-3, SA388, Sep 1921 C/c etc.· Heat Treatment Report: provide original copy of heat treatment curve/time table.
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