MMT inMotion Multimedia Presentation

In-Mold Rheological Control

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David Hoffman, Global Director, Technical Sales & Marketing, at Beaumont Technologies, Inc., explains In-Mold Rheological Control. This presentation was filmed at the 2006 Mold Making Exposition. (Total time: 48:43 minutes)

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Follow the links below to access the chapter slides of Beaumont Technologies inMotion presentation, "In-Mold Rheological Control"

Introduction Viscosity In Injection Molding Taking Molding To New Dimensions "Naturally Balanced" The Science Behind Non-Uniform Rheology The Science Behind Non-Uniform Rheology (cont.) Non-Symmetrical Rheological Properties Results Of Non-Uniform Rheology (Low Cavitation) Rheological Imbalances Cause Shrink & Warp Differences The Cost Of Not Controlling Rheology In-Mold Rheological Control Systems (Single Axis) Uniform Rheology TO And WITHIN The Mold Cavity Flow Analysis Rheology Vs. Real World Rheology Progressive Rheological Control 32-Cavity Mold Example Separating Steel Imbalances & Rheological Imbalances Opening The Process Window: Controlling Rheology

Material Degradation Uniform Cavity Pressure & Process Stability Rheological Control Systems (Multi-Axis) Controlling The Melt Front Advancement Controlling The Melt Front Advancement (continued) Controlling The Melt Front Advancement (continued) Controlling The Melt Front Advancement (continued) Overcoming Part Geometry Through Rheological Control Systems Rheological Control (Single Axis) Rheological Control: Controlling Core Shift Rheological Control: Solving Glass Migration MAX Control: Influencing Weld Line Strength Rheological Control: Ability To Influence Weld Lines Rheological Control: Ability To Influence Weld Lines (continued) In-Mold Rheological Control Systems: Summary In-Mold Rheological Control Systems: Summary (continued) Why Use Rheological Control Systems?