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

FREE Scientific Molding Webinar: Plastics Today

 

FREE SCIENTIFIC MOLDING WEBINAR

February 13     11:00 AM PST

Plastic injection processing has experienced massive change in the last 20 years. The days of molding by time and pressure have given way to molding by position, peak pressure and process repeatibility, aka scientific molding.

I am hosting this Plastics Today webinar and will provide instruction on key scientific molding principles.

Essential topics include:  process development, recording, monitoring and control; standardization; design optimization experiments; and process optimization.

Molding managers, process engineers, quality engineers, process technicians and anyone who needs an understanding of scientific molding and lean manufacturing concepts will benefit from this webinar.

 

Attend this webinar and learn:

 

  • What is needed during the process development stage
  • How to capture all scientific data specific to a process, including melt and mold temperature and turbulent flow
  • How to avoid situations that adversely affect process standardization (including an overview of tools that improve and verify process consistency)
  • Techniques that improve cycle times without jeopardizing process consistency and scrap rates
  • The nuances of fill time, gate seal, back pressure, pressure drop, cavity balance, melt and mold temperature, cavity pressure, viscosity and more

CLICK HERE TO REGISTER for webinar

Click HERE for information regarding Scientific Molding training in your plant..

CORE Plastic Injection Processor Training

The plastic411 CORE Processor training system is an in-plant training program that first identifies the strengths and weaknesses of your team,, and then develops in-house training at your plant using your presses and equipment!

This is NOT class room training that is quickly lost with very little retention due to the generic content of many programs that often are not providing information that applies to your plant!

  • PROCESSING I (includes scientific molding intro)
  • Scientific Molding 

Plastic411 2 day training programs cost considerably lower than most major training companies.. but content is primarily the same.

The primary difference?  The training is developed to be company specific. Very little class time.. on your floor, using your plant’s equipment, materials and processes. 2 day courses that you and I develop together.

The purpose of the training is simple.. to build core skill sets that apply directly to specific company needs and weaknesses. I developed the program based on the common complaint that current platforms have become universal. Much of the information taught isn’t retained because content doesn’t pertain to plant specifics, which makes it difficult to apply in a molder’s own specific environment.

Training Availability: Continental US. PROCESSING I generally starts at $3800, up to 6 attendees. Travel is of course an additional expense. Currently operating the business out of the mid west (Michigan), but also operate out of Florida. 6 month rotation.

 

Click HERE to for more information…

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……

Click HERE to read the article….

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…

Click HERE to read the article

 

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…..

 

Click HERE to read this article

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…

Click HERE to read the article