best practices
MES Helps Molder Tackle Plant Efficiency
New central computer system dramatically improved operating efficiencies and slashed costs for a molder of tackle boxes and other types of cases.
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TOOLING: Repairing Molds in the Press: Part 3
This is the final part of a series on tooling in the press. This column will cover repairs that can be accomplished in the press.
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EXTRUSION: Venerable Maddock Mixer Still an Extrusion Workhorse
Variations to this decades-old mixing section are widely used, but processors should carefully analyze these designs and not assume they will perform better.
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INJECTION MOLDING: Improving Barrel-Temperature Measurement and Control
Proper thermocouple placement and contact area are crucial, as is wire maintenance. But remember that barrel temperature and melt temperature are not the same
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MATERIALS: The Problems with Single-Point Data: Part 9
Time—and not just temperature—governs the behavior of materials under load. Both must be considered when evaluating a polymer for an application.
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Prototype to Production: NPI/Medical Is Quick-Turn Artist
New name, same focus: From 1 part to millions, a new-product development manufacturer for over 45 years.
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Molder Builds a Business From Next to Nothing
Under new ownership, Cumberland Plastics Solutions’ decision to invest when times were tough has paid big dividends.
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TOOLING: Designing Molds for Easy Cleaning & Maintenance in the Press
Pay attention to water leaks and rust, proper grease selection, vent buildup, and checks for wear.
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EXTRUSION: Managing Regrind
Reusing scrap is a necessary evil. But be aware of the negative impact scrap has on properties and extrusion efficiencies. Start by developing a regrind-usage program.
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INJECTION MOLDING: Get Control Over Barrel Zone Temperature Override
Poor temperature control results in an erratic melt stream and process. Here are some tips on how to get things under control.
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