best practices
Understanding the Effects of Paint On Plastics
Paint can have significant effects on mechanical properties of plastic parts. As illustrated by this OEM’s procedure in developing new-generation outboard-motor covers, there’s no substitute for thorough testing.
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Prevent & Minimize Downtime in Hot Runner Molding
There are simple explanations for the most common hot-runner problems and equally simple ways to prevent them. One is to take advantage of features often overlooked in today’s hot-runner controls.
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The Paradox of Proportioning
Continuous proportioning typically involves a group of gravimetric feeders operating under some form of higher level coordinating control. One would think the result should be a perfectly formulated composite stream. But the devil is in the details.
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Automation Eliminates Contamination
Many molders use robots to boost output and repeatability, but SSI also uses them to prevent contamination of critical diagnostic products.
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Rogan Corp. at 80: Growing in Medical, LSR, Two-Shot Molding
Bondable TPEs and LSRs support growth in two-shot molding for medical and other markets.
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Family-Owned Thermoformer Continues to Flourish
By adding technology, home-grown tooling, and automation, industrial thermoformer C&K Plastics has grown while getting its costs under control.
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TOOLING: Flash-Free Molding: Part 1
A robust process window relies a lot on tooling. So it stands to reason that making a tool change to address issues provides a more robust solution
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EXTRUSION: Double Flights Are Not a Cure-All
There are certain applications where double-flighted feed sections make sense, and others where they don’t.
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INJECTION MOLDING: How Does Your Machine Control Pack Velocity?
You’ll need to find out in order to develop a molding process that you can repeat from machine to machine and mold to mold.
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MATERIALS: Don’t Guess Your Way through Root Cause Analysis: Part 2
The huge chasm between the laboratory and manufacturing discipline usually does not lend itself to problem-solving. It can be improved with clear communication between the analysis laboratory and the people bringing the problem to the lab.
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