注塑节能的研讨会INJECTION MOLDING ENERGY CONSERVATION SEMINAR【国外大学优秀课件】.ppt

INJECTION MOLDING ENERGY CONSERVATION SEMINAR: MODERN INJECTION MOLDING David O. Kazmer, P.E., Ph.D. Northeast Utilities Auditorium, Berlin, CT Economics 101 =Energy Conservation 101? Adam Smith Wealth of Nations, 1776 Each individual intending only his own gain must exchange what he owns or produces with others By division of labor and a free market, public interest is advanced. Does this “invisible hand” serve energy conservation? “Let’s Play The Price Is Right” Economic choices are usually rational Role of government to provide transfer prices and incentives Agenda Modern Molding Technologies Economic Structures Data Evaluation of Injection Molding Class 0: Obsolete Class 1: Standard Class 2: Efficient Class 3: Lights Out Competitive Strategies Conclusions Molding Technologies:Modular Molds Modularity standardization have provided Reduced design time mold tooling costs 10 minute quick change in press Trend reversal Cheap molds Prototype molds Lower importance of quick change givenexcess capacity Molding Technologies:All Electric Machines All electric advantages ~50% of the power Silent operation Cleanliness Precision Reduced AC costs Trend to continue Automotive hybrids fuel motor technology Asian machine technology improves Molding Technologies:Hot Runners Melt delivery systems provide: Low pressure drops Fast cycle times Zero material waste Tight quality control Trend to continue: Lower priced systems New technologies Economic decisions Molding Technologies:Cavity Pressure Control Closed loop pressure feedback provides: Automatic V/P switchover Improved consistency Quality control data Trend to continue: Low cost sensors Cheap computers New technologies Improved control Improved sensing Modern Manufacturing Molding Technologies:Automation Robotics provides for: Reduced labor content (demolding degating) Repeatable cycle times Fast cycle times Trend to continue: Cheap computers Low cost motors standard designs Molding Technologies:Quality Co