Category Archives: Plastic Injection Troubleshooting Network

The primary purpose of this group is helping one another on troubleshooting issues as they relate to plastic injection

Plastic411 introduces the CORE Processor Training System

CORE Processor Training System

 

I am now offering a training program that is specifically designed to address each company’s training needs individually. The CORE program is intended to enforce and compliment the standard training programs available for decoupled and scientific molding.

CORE builds the talents within your processing team by identifying, addressing and removing specific weaknesses through training, development and equipment. The system has a unique set of tools not found in any other program…

 

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Eliminating the “Fire Fight” in Plastic Injection

Plastics production rides a fine line when the goal of low scrap, high yields and sustainable, repeatable systems are being developed. Without the proper approach, the system can  quickly fall into one of two categories: tribulation.. or turmoil. Quite often you will hear old school molders describing their battle for a robust processing system as “fire fighting” in the world of plastic injection molding. In real terms, “fighting fires” on the production floor is a sign of system failure. True molding standards don’t require constant coddling, adjusting, sorting, etc. It is real easy to fall into the trap of applying “Band-Aids” to molding situations when the proper approach should have been……

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Effective Machine Shutdowns are Key to Successful Start Ups

By Garrett MacKenzie

press floor

The weekend comes to an end and the time comes to bring the molding floor back online for the beginning of a new work week. A molder can sometimes dread the tasks associated with a full plant restart. There are many potential failures that can occur as a plant is returned to a production state. Despite these risks, much of the headache can be avoided simply through proper shutdown and start up procedures. The following article addresses many key components that often lead to poor restarts. It also provides insight into some of the methods that can be implemented to not only reduce system breakdowns, but also can offer smoother start-ups with fewer problems…

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Laws of Viscosity in Molding

By Garrett MacKenzie

viscosity

Viscosity is a very large category that has huge effects on standardizing molding processes. It is also one of the most important  factors in a molder’s arsenal of making process changes. This article will first explain viscosity, and then delve into different situations where viscosity may help or be hurting  a processors goal of zero scrap and high output…..

 

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Mold Watering/ Heating: Key of Process Control

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By Garrett MacKenzie

When trying to establish process control in plastic injection, watering the tool is a key variable that is often overlooked. Water set-up and design are every bit as important as establishing and recording a repeatable process. The steps taken when watering a mold are key to a processor’s goal of consistency. If during the design and development stage, watering is put on the back burner as an “unimportant” variable, the potential for lost process control is huge. 

Below are some insights into the most important facets of cooling or heating your mold, as well as what recordable data are important in the initial stages of process engineering…

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