Exploring the: Injection Molding Zone



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INJECTION MOLDING: Are Your Sprue or Parts Sticking? Here Are Some Solutions
Nine times out of 10 when a sprue or part sticks, the result of trying to unstick it is more scratches or undercuts, making the problem worse and the fix more costly. Here’s how to set up a proper procedure for this sticky wicket.
Columns Published: 7/28/2014
TOOLING: Balancing the Heat Budget In Injection Molds
Basic formulas for how much heat you must pull out of the mold to achieve a set cycle time
Columns Published: 6/19/2014
INJECTION MOLDING: Setting Mold Protection Takes Time But Saves More
Mold protection is often neglected, but it more than pays for the time and attention required.
Columns Published: 6/19/2014
INJECTION MOLDING: Troubleshooting Bridging
Bridging is an aggravating problem that can shut you down. Here's how to find it and fix it.
Columns Published: 5/21/2014
INJECTION MOLDING: ‘Know Your Machine’
Many molders think they “know their machine,” but in reality do not. They get consumed by the demands of day-to-day production requirements and lose sight of the big picture.
Columns Published: 4/23/2014
Industry Expands Again
January was the third month in a row and the fifth time in six months that index was higher than it was one year ago.
Columns Published: 2/25/2014
Let’s Confer…About Conferences
Plastics Technology and sister pubs plan thermoplastic composite in automotive event. Meantime, Molding Conference purchased by PT parent.
Columns Published: 2/25/2014
Shutting Down & Starting Up An Injection Molding Machine
Whether your press is going down for repairs, a holiday, or a slow production schedule, proper shut-down and start-up procedures must be followed.
Columns Published: 2/25/2014
How to Set Barrel Zone Temps
Start by picking a target melt temperature, and double-check data sheets for the resin supplier’s recommendations. Now for the rest...
Columns Published: 1/23/2014
How to Establish an Acceptable Range for Pressure at Transfer
Pressure at transfer tells you the viscosity of the resin, providing the fill time is the same. Monitoring pressure at transfer—or better yet, the integral under the pressure vs. time curve—provides insight into the process.
Columns Published: 12/29/2013

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