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How to Choose the Right Size Screw for an Injection Unit Based on Used Resin and Application

Date: Thursday, November 8, 2012 2:00 PM - 3:00 PM US Eastern Time


Description: The seminar will explain the methodology to correctly choose the right screw size for the application at hand. Differences in the selection based on material processed will be explained in detail. A short side trip into plastic physics will provide the necessary explanation of the main differences between polymers and provide the foundation required to make the right selection. Primary topics (what the registrant will learn): - Proper screw size calculation, methods, formulas - Understanding plastic density changes throughout the molding process - Learn why residence time is not related to the "shot size" of the barrel - Why percentages of barrel capacity is a rule of thumb at best

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