Know-How

Extrusion

How Screw Design Can Boost Output of Single-Screw Extruders

Optimizing screw design for a lower discharge temperature has been shown to significantly increase output rate.

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21 Tips to Slash Energy Costs in Molding

This checklist can provide injection molders a good starting point on the path to reduced energy consumption and can generate some money savings on that journey.  

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The Impact of Hydraulics on Tool Design, Practical Uses — Part 2 of 2

Here are more tips on using hydraulically actuated devices on your tools.

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Tracing the History of Polymeric Materials, Part 26: High-Performance Thermoplastics

The majority of the polymers that today we rely on for outstanding performance — such as polysulfone, polyethersulfone, polyphenylsulfone and PPS — were introduced in the period between 1965 and 1985. Here’s how they entered your toolbox of engineering of materials.    

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best practices

The Impact of Hydraulics on Tool Design -- Part 1 of 2

Get a better understanding of their use, proper sizing, and how the tool design and setup in the machine can impact failures in manufacturing.

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Troubleshooting Vent Flow Problems in Single-Screw Extruders

Vent flow can be a costly problem and a housekeeping nuisance. Here is some advice on how to eliminate it.  

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Multiscrew

Improving Twin-Screw Compounding of Reinforced Polyolefins

Compounders face a number of processing challenges when incorporating a high loading of low-bulk-density mineral filler into polyolefins. Here are some possible solutions.

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How Important is Minimizing Residence Time in Injection Molding?

Does a focus on the concept of “minimum residence time” distract attention from areas of injection molding that have more of a direct impact on melt quality?

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Molds & Tooling

How to Select the Right Tool Steel for Mold Cavities

With cavity steel or alloy selection there are many variables that can dictate the best option.

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Elastomers

Tracing the History of Polymeric Materials, Part 25: Silicones

The long road to the development of silicone resulted in a chemistry that is remarkably versatile.  

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Blending & Dosing