Know How - Injection Molding

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Published: 5/28/2013

What's Different About Molding Engineering Plastics
If you try to run them like commodity materials such as PP you'll have problems.

Published: 4/29/2013

Take a Scientific Approach to Troubleshooting
Taking a scientific approach minimizes the 'art' of molding, which is particularly helpful when troubleshooting

Published: 3/25/2013

Screw Decompress Before Screw Rotate
Thoughtfully determining when to start screw rotation to build the charge for the next shot can reduce the wear and tear on the screw tip, check valve, and screw motor.

Published: 2/26/2013

Coping with Weak Weld Lines
Weld lines cause significant reject rates and are a common problem that all molders face.

Published: 1/28/2013

Don’t Ignore Nozzle Temperature Control
It is not a trivial detail.

Published: 12/28/2012

Minimize Screw Recovery & Cycle Times
There are hundreds of details you must identify and control to run a successful molding plant. One that is almost always at the top of the list is optimizing cycle time. Shorter cycles that make acceptable parts improve profits.

Published: 11/28/2012

How to Specify A Resin Dryer
To dry your polymer correctly you need a dryer that is properly designed and working properly. Here are my suggested specifications, for a two-, three- or four-bed desiccant dryer, the most common types used.

Published: 10/26/2012

Top 10 Reasons Why Molders Fail At Implementing ‘Scientific Molding
What is Scientific Molding? And why do molders seem to have such a difficult time embracing its concepts? Here are some thoughts on the matter.

Published: 9/29/2012

Get the Most From Your Tooling
The history and culture of the molding industry has been to pull out every trick possible to work around design, resin, tooling, processing, and testing issues once the mold arrives. It is time to rewrite history.

Published: 8/27/2012

Establish a True ‘24/7’ Production Process
New or existing mold trials need to produce a production-worthy process that will run 24/7.