best practices
Injection Molding: A Practical Approach to Calculating Residence Time
Toss the formulas. The best way to determine residence time is to conduct a simple experiment.
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A Processor's Most Important Job, Part 5: POM Polymers
Using a mold temperature above a polymer’s Tg ensures a degree of crystallinity high enough to provide for dimensional stability, even if the part must be used at elevated temperatures. But POM is an exception. Why?
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Tooling: What You Need to Know About Jump Gates
Many molders don’t care for jump gates because they have to process around them. But here are some tricks of the trade.
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Extrusion: Why There Are No Truly Universal Dies
Flow characteristics of different polymers vary considerably. So while adjustment features are available, for the most part dies must be designed for an individual polymer.
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Injection Molding: How Backpressure Adjustments Influence Shot Size
Raising backpressure results in increasing shot size, which can cause a host of other problems.
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A Processor’s Most Important Job, Part 4: Mold Temperature
Engineering polymers require higher mold temperatures to achieve their ideal structure. The temptation to turn down the mold temperatures can hurt part performance.
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New Screen Changer Boosts Productivity, Cuts Scrap for Extruder of PET Strapping
Cyklop’s move to a new-model, high-efficiency screen changer reduces number of screen changes and backflush waste while yielding uniform melt flow and high throughputs.
Read MoreConformal Cooling Technology Maximizes Cooling Efficiency
DME says that the TruCool Conformal Cooling line provides greater overall cooling coverage with even distribution while maintaining a targeted, consistent temperature and reducing cycle times by as much as 60 percent.
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GW Plastics Bets on Metal 3D Printing
Conformal cooling is goal of big investment at U.S. mold facility.
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Cast vs. Integral: Which Feed Section Is Best for You?
Here are seven factors extrusion processors should weigh to help them decide between cast feed section versus an integral extrusion feed section.
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