best practices
How to Establish an Acceptable Range for Pressure at Transfer
Pressure at transfer tells you the viscosity of the resin, providing the fill time is the same. Monitoring pressure at transfer—or better yet, the integral under the pressure vs. time curve—provides insight into the process.
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Melt Flow Rate Testing—Part 6
Once degradation has been established, the discussion inevitably turns to how it happened. It might be expected that the answer to this question is widely known. Not so. The good news is that the influences that cause polymer degradation during processing are few.
Read MoreBusting the Conformal Cooling Myths
Conformal cooling is opening up new ways of doing things with new tools to solve problems.
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A Processor’s Advice on How to Get Moisture Testing Right
Follow these four steps to ensure your results are on target.
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Optimize Cooling Water Supply To Reduce Costs
In the last three articles (March, May, Sept. 2012), we introduced the problem of wasted energy in cooling-water systems and presented two types of solutions—minimizing “parasitic” heat gains and raising water temperatures to minimize demand.
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Optimize Resin Management in Extrusion Blow Molding
In the EBM process, profits depend greatly on how judiciously you use resin.
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Which Winder’s for You?
It's time to apply more science to the process of selecting the right kind of winder for your operation.
Read MoreMaintenance Training? Show Me the Money
Training works best if a goals are set and a plan is established to meet them.
Read MoreWhy I Still Like Analog Meters
They may not look as slick as their digital cousins, but I find them more helpful in identifying and troubleshooting extrusion problems.
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Dimensional Stability After Molding: Part 1
The degree to which molded parts shrink as they cool is largely dependent upon the composition of the material being processed.
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