1350粗轧机轧制铝箔产生波浪的原因及控制方法-豆柴文库

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1350粗轧机轧制铝箔产生波浪的原因及控制方法
Title:CausesandControlMethodsofWrinklinginAluminumFoilduringRoughRollingin1350RoughingMill
Introduction
Aluminumfoiliswidelyusedinvariousindustries,suchaspackaging,electrical,andconstructionduetoitsexcellentpropertiessuchaslightweight,corrosionresistance,andthermalconductivity.Theproductionofaluminumfoilinvolvesseveralprocessingstages,includingroughrolling,intermediaterolling,andfinishingrolling.However,onecommonissuefacedduringtheroughrollingprocessisthegenerationofwrinklesonthealuminumfoilsurface.Thesewrinklescanleadtodecreasedproductqualityandincreasedmaterialwaste.Therefore,itiscrucialtounderstandthecausesandimplementeffectivecontrolmethodstominimizewrinkling.
CausesofWrinkling
1.ThicknessReductionRatio
Thethicknessreductionratioistheprimaryfactorinfluencingthegenerationofwrinklesduringroughrolling.Whenthereductionratioishigh,itresultsinexcessivestrainaccumulationinthematerial,leadingtowrinkling.Thethicknessreductionratiocanbecontrolledbyadjustingtherollingspeed,rollgap,androllingforce.
2.FrictionConditions
Frictionbetweenthealuminumfoilandtherollsplaysasignificantroleinwrinkleformation.Insufficientfrictioncanresultinslippagebetweenthefoilandrolls,causinglocalizedstrainconcentrationandsubsequentwrinkling.Conversely,excessivefrictioncanleadtoincreasedresistanceduringrolling,leadingtounevenmaterialflowandwrinkling.Tocontrolfriction,appropriatelubricationtechniques,suchastheapplicationofrollingoilorsurfacetreatments,canbeemployed.
3.Non-uniformStripTemperature
Non-uniformstripheatingcanalsocontributetowrinkling.Inadequateheatingorexcessivecoolingcanresultinvariationsinthematerial'splasticity,leadingtolocalizedstrainconcentrationandwrinkling.Ensuringuniformstriptemperaturethroughproperheatingtechniquesandcontrolsystemsisessentialforminimizingwrinkling.
ControlMethods
1.OptimizationofRollingParameters
Tocontrolwrinkling,variousrollingparametersmustbeoptimized.Therollingspeed,reductionratio,rollgap,androllingforceshouldbecarefullyadjustedtomain