Exploring the: Injection Molding Zone



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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.
Columns Published: 3/25/2013
Coping with Weak Weld Lines
Weld lines cause significant reject rates and are a common problem that all molders face.
Columns Published: 2/26/2013
Don’t Ignore Nozzle Temperature Control
It is not a trivial detail.
Columns Published: 1/28/2013
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.
Columns Published: 12/28/2012
Dimensional Stability After Molding: Part 1
The degree to which molded parts shrink as they cool is largely dependent upon the composition of the material being processed.
Columns Published: 12/28/2012
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.
Columns Published: 11/28/2012
The Cost of Doing Nothing
Most people usually associate costs with doing something.
Columns 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.
Columns Published: 10/26/2012
PBT & PET Polyester: Part 2 The Performance Factor
All things being equal, PET will outperform PBT mechanically and thermally. But the processor must dry the material properly and must understand the importance of mold temperature in achieving a degree of crystallinity that allows the natural advant...
Columns Published: 10/26/2012
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.
Columns Published: 9/29/2012

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