best practices
The Top 10 Most-Viewed Plastics Technology Articles of 2018
Sinks, flash, gels, weld lines—many of the most-viewed articles at PTOnline.com in 2018 offered processors advice on how to deal with some of plastics most nettlesome problems.
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Plastics Technology’s Most-Viewed Columns of 2018
Here are the expert columns that visitors to PT’s site viewed the most in 2018, covering mold and melt temperatures; shot sizes; barrel capacity; material properties and more.
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Process Capability and the ‘Hesitation Effect’
Understanding the concepts of pack and hold and applying them during process development is critical for molders to achieve consistent part quality.
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Part 1: Heat Deflection Temperature vs. Dynamic Mechanical Analysis
Does the industry need a better way of reporting the temperature-dependent behavior of plastics? With DMA, it already has one. But it’s been glacially slow to catch on.
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PART 2 OF 2: Tricks of the Trade on RTOs, RSOs
They have a lot more to offer molders than just shutting off a cavity. Let’s take a closer look.
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Unraveling the Complexity of Single-Screw Scale-Up
Variables such as shear rates, melting rate, residence time and conductive heating are all influenced in the scale-up.
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PART 2: The Importance of Consistent Fill Time
To make identical parts, you need to keep fill time constant. In part one we covered the why. Here’s the how.
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Worldwide Switch to New Gauging System Pays Off for Haartz
Leading supplier of sheet and roll stock for automotive applications reevaluated its thickness-measurement technology in 2012, and now has 15 scanners in place worldwide from one supplier.
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Part 1: The Importance of Consistent Fill Time
To make identical parts, you need to keep fill time constant. Here’s why.
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Telltale Signs of Screw Wear
Determining the cause of wear is the first step in eliminating it.
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