#BESTPRACTICES

Injection Know How

How to Know When Your Process is Ready to Make Acceptable Parts

Focus on six key metrics to help you determine when a process is lined out and stable enough to start production. 
#bestpractices

Five Ways SPC Can Improve Performance

Statistical process control (SPC) can help plastics processors determine the factors responsible for product quality variation and provide a roadmap for improving the production process.
#bestpractices #monitoring

Extrusion

Understanding the Effect of Polymer Viscosity on Melt Temperature

Every processor should get hold of the viscosity curves for the polymers they use or contemplate using in their operations, and learn how to read them.
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Materials Know How

Materials Part 6 of 7: Annealing Tips for Thermoplastic Polyurethanes

TPUs form physical, rather than chemical, crosslinks that can be broken by reheating. Formation of these crosslinks can be sped up by annealing, which improves a variety of properties.
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Purging Compounds

Follow These Purging and Preventive Maintenance Tips for Your Screws and Barrels

Processors can extend the life of equipment and improve productivity by coupling a preventive-maintenance program for their screws and barrels with routine use of chemical purging compounds..
#bestpractices #screws

Molds & Tooling

Tooling: Back to Basics On Die Springs--Part 2

Follow these steps for proper die-spring selection and installation.
#dies #bestpractices

Drying

Clear Your Calendars for Plastics Technology 'Tech Days'

Beginning Oct. 8, we will be bringing exclusive, live, online technical content on a wide range of processing topics that you can access for free.
#bestpractices #industry4-0 #dies

Multi-Screw Compounding

How and Where Twin-Screw Extruders Fit in Recycling

When utilized in a thoughtful way, the corotating intermeshing twin-screw extruder can transform recycled materials into value-added products and parts. Here’s what you need to know, and some real-world examples of the technology deployed for both post-industrial and post-consumer recycling.
#bestpractices #sustainability

Materials Know How

Materials Part 5: Annealing Tips for Crosslinked Polymers

As with semi-crystalline thermoplastics, annealing can be used in thermosetting polymers to obtain a level of crosslinking that may not be possible within the molding cycle.
#bestpractices #Elastomers

Know How

Tooling: Back to Basics on Die Springs Part 1

Some molding shops insist that all of their molds have springs to return the ejector plates. And there are lots from which to choose. Here we’ll focus on compression die springs for injection molds.
#bestpractices #dies

Multi-Screw Compounding

Demystifying the Devolatilization Process

Here are some practical guidance and simple tools to help you better understand the process and improve your operation.
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Injection Know How

Back to the (Re)Grind

Some amount of scrap—generated in startup, shutdown or defective parts—is inevitable. How can you reclaim regrind into new profitable parts?
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Extrusion Know How

Extrusion: 'Melt-Blown' Fiber: What You Need to Know to Enter the Face Mask Market

Coronavirus pandemic has made extrusion processors curious about entering the face-mask market. But melt-blown fiber is very different from most other extrusion processes and requires specialized equipment.
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Injection Molding

Tooling: How to Properly Size Gates, Runners and Sprues; Part 5 of 5

Get the sprue, runner and gate sizes close to ideal the first time around.
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Engineering Resins

Materials: Annealing Tips for Semi-Crystalline Polymers: Part 4

You can forgo the elevated mold temperatures normally recommended for high-performance semi-crystalline materials. But it’s risky and likely to yield parts that under-perform expectations … assuming that they emerge from the annealing process looking anything like the drawing.
#pet #bestpractices

Injection Know How

Use This Check List to Get Your Machine Properly Installed

Whether you bought a new machine or one that’s been refurbished, you need to prepare for installation so that it can be executed as seamlessly as feasible. Here some advice.
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Injection Molding

Achieving Continuous Improvement Using SMED Programs

A good SMED quick changeover program can help optimize financial performance by converting non-value-add time into value-add time.
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Extrusion

Extrusion: The Importance of Zone 1 Barrel Temperature

Tweaking the temperature settings of the first barrel zones may not yield the desired result. In fact, they may yield the opposite. Here’s why.
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Molds & Tooling

Tooling: How to Properly Size Gates, Runners and Sprues, Part 4

How to get the sprue, runner and gate sizes close to ideal the first time around.
#bestpractices

Engineering Resins

Part 3 Materials: Annealing Tips for Semicrystalline Polymers

For these polymers, annealing is done to establish a level of crystallinity that cannot be practically obtained within the parameters of a normal molding cycle. Here’s some guidance on setting annealing time and temperature.
#bestpractices #Elastomers