Know-How
Melt Flow Rate Testing—Part 3
There is a well-established relationship between something called the weight-average molecular weight of a polymer and a parameter known as the zero-shear viscosity.
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Your Machine is Built…Now What?
Here is what you need to do to get ready for the installation of your new accumulator head machine.
Read MoreThe Scale-Up Conundrum
There are many methods used to determine scale-up based on output, but most designers do not scale the melting requirement along with the output.
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‘Auto Compensate’ Your Press To Handle Viscosity Variations
Here's how to put your injection molding machine on cruise control to make consistently good parts even in the face of material viscosity variations.
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Melt Flow Rate Testing – Part 2
To fully appreciate the strengths and weaknesses of the melt-flow-rate (MFR) test it is important to know something about the way the test is performed.
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Understanding Screw Breakage
You might think you're over-torquing the screw, but more often than not bending is the reason.
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Level Your Press in an Hour or Less
A level injection molding machine is necessary to keep producing high-quality parts. Here's how to do it right.
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Your Pre-Installation Checklist-Part 1
The work really begins after you've ordered your new machine.
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Extrusion: Where's the Data? The Importance of Melt Strength in Extrusion
All extrusion processes depend to some degree on the melt strength of the polymer, and this property is generally a no-show on data sheets.
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