Exploring the: Injection Molding Zone



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Nozzle Leaks: Why They Occur, How to Detect & Fix Them
Nozzle leaks are a serious problem in injection molding. Here are some causes and remedies.
Columns Published: 7/30/2012
Should You Profile Injection Velocity?
If you can get by with one velocity, use only one, because fill time is easier to reproduce, and it is easier to set up the process.
Columns Published: 6/26/2012
Understanding Polymer Flow: Interpreting the Viscosity Curve
Take the time to do the viscosity curve on new molds. You will learn more in that hour than many learn in years about the process for this tool.
Columns Published: 5/29/2012
All About ‘Cushion’
What it means. Why it's important.
Columns Published: 4/26/2012
Getting Good Data from DOE
How do you know what process variables control a part’s dimensions or other properties? A properly conducted DOE is the answer—but incorrect procedure will yield useless data.
Columns Published: 3/26/2012
Improve Profits by Graphing Injection Pressure
Graphing is a powerful aid in optimizing the process and troubleshooting both process and machine issues.
Columns Published: 2/21/2012
Working with Color Concentrates
Perhaps the greatest difficulty involving the use of color concentrates is specifying them appropriately for the material to which they are being added.
Columns Published: 2/21/2012
What to Calibrate on Your Press
There are different approaches to meeting the goal of making parts identically. At the heart of all them is the process or the machine setup sheet. My bet would be you cannot find two that are identical.
Columns Published: 1/28/2012
What Percentage of Barrel Capacity Should Your Shot Size Be?
The answer combines both experience and science, and it may be one of those molding details that gets overlooked but could be stealing a chunk of your profits.
Columns Published: 11/28/2011
Plasticating Rates: Your Profits Are at Stake
To get the best cycle time you need the right machine, and few molders take the time to specify this critical component of the process.
Columns Published: 10/25/2011

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