注塑指导Competitive Injection Molding by Kazmercost

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1、COMPETITIVEINJECTIONMOLDINGDavidO.Kazmer,P.E.,Ph.D.SME/Eastec2004ConferenceSpringfield,MA1AgendaEconomicStructures&DataEvaluationofInjectionMoldingBarrierstoCompetitionModernMoldingTechnologiesSummary2CostStructuresTotalProductionCostsTotalLaborCostsTotalConsum

2、ablesCostTotalFacilitiesCostsMachineryMaint’nceFacilitiesYield$/HrOutputDowntimeEnergyResin3CostParametersCostparametersN.E.ChinaOperatorlabor$13/hr$0.70/hrEng/Mgtlabor$30/hr$3/hrEnergycost$0.08/kWhABSresin$1477/ton$950/tonMachinerycost$30/hr$15/hrFacilitiescost$7

3、.00/ft2$4.20/ft2Maintenancerate10%20%4AgendaEconomicStructures&DataEvaluationofInjectionMoldingClass0:ObsoleteClass1:StandardClass2:EfficientClass3:LightsOutBarrierstoCompetitionModernMoldingTechnologiesSummary5InjectionMoldingEconomicsCaseStudyforaMid-SizedMolder2

4、00millionpartsperyearAveragepartweight:10g6Class0:ObsoleteOperatingConditions8cavities/moldwithcoldrunnersPoorlyselectedhydraulicmachines(26kW)50secondspercycle(optimistic)Coolingissues&semi-automatic95%qualitylevel(optimistic)1operatorper1machine1eng/mgtper15oper

5、ators2shifts,5daysperweek4hoursetupper10,000parts7Class0:ObsoleteFactoryCharacteristics#Operators#Machines#Eng/MgtEnergyUse8Class0:ObsoleteCostData9Class1:StandardOperatingConditions16cavities/moldwith50%hotrunnersWellselectedhydraulicmachines(30kW)45secondsperc

6、ycle(optimistic)98%qualitylevel(optimistic)1operatorper2machines1eng/mgtper15operators2shifts,5daysperweek2hoursetupper10,000parts10Class1:StandardFactoryCharacteristics#Operators#Machines#Eng/MgtEnergyUse11Class1:StandardCostData12Class2:EfficientOperatingCondi

7、tions32cavities/moldwithhotrunnersElectricmachines(26kW)40secondspercycle,fullyautomatic99%qualitylevel1operatorper4machine1eng/mgtper15operators3shifts,5daysperweek1hoursetupper10,000parts13Class2:EfficientFactoryCharacteristics#Operators#Machines#Eng/MgtEnergyUs

8、e14Class2:EfficientCostData15Class3:LightsOutOperatingConditions32cavities/moldwithhotrunnersElectricmachines(22kW)35secondspercycleFullyautoma