Extrusion Know How
Solving Feed-Related Surging
Understanding the causes of surging can help troubleshoot and correct it.
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Extrusion: A Roll Is a Roll Is a Roll?
Chill rolls may looks simple and shiny, but they play a critical part in cooling and polishing film and sheet and are not all the same.
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Follow This Action Plan to Keep Your Sheet Dies in Line
Getting back into production after maintenance or troubleshooting requires a coordinated effort. Here’s how to get your sheet line up and running as fast as possible.
Read MoreExtrusion: Reducing Energy, Part II: ‘Adiabatic’ Extrusion
The term adiabatic extrusion was very popular in the ’60s and ’70s, but has seemingly disappeared from the processing terminology of today.
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Extrusion: Run Your Chevy Volt with Extruder Energy Savings—Part I
The electricity saved on a large extrusion line could power a number of Chevrolet Volts.
Read MoreExtrusion: Start Up and Shut Down Properly
A key goal during startup and shutdown of the extruder is to prevent degradation of the polymer left in the extruder and downstream components such as screen changers, adapters, and dies.
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Extrusion: Take Care of Your Rolls So They Can Play Their Role
In the sheet extrusion business, one of your most important manufacturing assets is your cooling rolls.
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Tooling: The Science of Profile Die Balancing
In our last column, we discussed the five things profile extruders need to know about profile die design—proper land length, land-length ratio, drawdown, considerations for sensitive materials, and decompression.
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Your Extruder's Best Friend
That's the melt pump, and its main purpose is to precisely control output to the die.
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