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processing tips
Shredding Thin Film: How to Do It Right
While many processors recoil at this task, a little know-how in shredding equipment, processing, and maintenance should add the necessary confidence.
ICYMI: March Roundup
Still catching up post-PTXPO? Whether you attended the show or not, there were bound to be some must-read articles that may have slipped past you. Catch up on what you missed.
Read MoreICYMI: January Roundup
In case you missed it, here’s a short recap of the articles that our readers are taking note of.
Read MorePlastics Technology Year in Review: Your Favorite Reads of 2024
A year-end review of the top stories showcasing industry trends, advancements and expert insights. Revisit the articles that captured the attention of the plastics community.
Read MoreMedical Tubing: Use Simulation to Troubleshoot, Optimize Processing & Dies
Extrusion simulations can be useful in anticipating issues and running “what-if” scenarios to size extruders and design dies for extrusion projects. It should be used at early stages of any project to avoid trial and error and remaking tooling.
Read MoreThe Importance of Barrel Heat and Melt Temperature
Barrel temperature may impact melting in the case of very small extruders running very slowly. Otherwise, melting is mainly the result of shear heating of the polymer.
Read MoreUltrasonic Welding: Tips, Techniques, and Troubleshooting
In this collection of content, we provide expert advice on welding from some of the leading authorities in the field, with tips on such matters as controls, as well as insights on how to solve common problems in welding.
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Bringing Order to the Chaotic Debate of Turbulent Flow in Injection Molding
Is turbulent flow required for all cooling channels to optimize the cooling process in injection molding? It depends. Author reviews the Reynolds number, advanced cooling technologies, simulation’s potential role and more.
Five Quick Steps Toward Better Blending
Rising costs of resins and additives, along with higher demands for quality and use of regrind, place a premium on proficient blending. Here are some steps to get you there.
Read MoreGot Streaks or Black Specs? Here’s How to Find and Fix Them
Determining the source of streaking or contamination in your molded parts is a critical step in perfecting your purging procedures ultimately saving you time and money.
Read MoreKnow Your Options in Injection Machine Nozzles
Improvements in nozzle design in recent years overcome some of the limitations of previous filter, mixing, and shut-off nozzles.
Read MoreBozzelli’s Guide To Specifying a Dryer
Here's a list of 17 things to do when looking for new drying equipment.
Read MoreThe Effects of Time on Polymers
Last month we briefly discussed the influence of temperature on the mechanical properties of polymers and reviewed some of the structural considerations that govern these effects.
Read MoreThe Effects of Stress on Polymers
Previously we have discussed the effects of temperature and time on the long-term behavior of polymers. Now let's take a look at stress.
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Sizing Your Granulator To Optimize Scrap Reuse
What makes good regrind, and why is it important? Ideal regrind should be as close to pelletized material as possible, meaning regrind that is uniform and homogeneous, with minimal dust, fines and longs. Learn how to find the right granulator for your scrap.
A Guide to Ultrasonic Welding Controls
Ultrasonic welding today is a sophisticated process that offers numerous features for precise control. Choosing from among all these options can be daunting; but this guide will help you make sense of your control features so you can approach your next welding project with the confidence of getting good results.
Read MoreHow to Optimize Pack & Hold Times for Hot-Runner & Valve-Gated Molds
Applying a scientific method to what is typically a trial-and-error process. Part 2 of 2.
Read MoreThe Importance of Melt & Mold Temperature
Molders should realize how significantly process conditions can influence the final properties of the part.
Read MoreHot Runners: A View from the Bottom Up
Addressing hot-runner benefits, improvements, and everyday issues from the perspective of decades of experience with probably every brand on the market. Part 1 of 2.
Read MoreHow to Set Barrel Zone Temps in Injection Molding
Start by picking a target melt temperature, and double-check data sheets for the resin supplier’s recommendations. Now for the rest...
Read MoreThe Strain Rate Effect
The rate of loading for a plastic material is a key component of how we perceive its performance.
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ICYMI: May Roundup
May was a busy month, especially with the buzz coming out of the Extrusion Conference. Here’s a quick look at the top articles from May you might have missed.
Sarah Barnett
Senior Digital Content Manager, Plastics Technology, MoldMaking Technology
Why (and What) You Need to Dry
Other than polyolefins, almost every other polymer exhibits some level of polarity and therefore can absorb a certain amount of moisture from the atmosphere. Here’s a look at some of these materials, and what needs to be done to dry them.
Read MoreTunnel Gates for Mold Designers, Part 1
Of all the gate types, tunnel gates are the most misunderstood. Here’s what you need to know to choose the best design for your application.
Read MoreThe Effects of Temperature
The polymers we work with follow the same principles as the body: the hotter the environment becomes, the less performance we can expect.
Read MoreImprove Quality & Productivity With Advanced Screw Design
Most molders are still running with screw designs that haven’t changed much in 30 years. But they don’t need to.
Read MoreSolve Four Common Problems in PET Stretch-Blow Molding
Here’s a quick guide to fixing four nettlesome problems in processing PET bottles.
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