Know-How
Injection Molding: Focus on these Seven Areas to Set a Preventive Maintenance Schedule
Performing fundamental maintenance inspections frequently assures press longevity and process stability. Here’s a checklist to help you stay on top of seven key systems.
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Understanding the Incumbent Resin Effect
When you are looking to replace an existing resin with a new one, in trials sometimes the “incumbent” resin will cause gels and other defects. Here’s what to look for.
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Using Data to Pinpoint Cosmetic Defect Causes in Injection Molded Parts
Taking a step back and identifying the root cause of a cosmetic flaw can help molders focus on what corrective actions need to be taken.
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Revisiting the '5 M's' of Molding
All injection molding ultimately comes down to the “Man, Mold, Machine, Material and Method.” But those key aspects can be viewed differently if you’re auditing mold changes before startup or troubleshooting changes for an already validated process.
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Attending NPE2024 From the Perspective of a Molder
NPE2024 has come and gone, but before it’s completely in our collective rearview, Plastics Technology asked Rodney Davenport, vice president at injection molder CH3 Solutions, for a processor’s perspective on the big show.
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Understanding Melting in Single-Screw Extruders
You can better visualize the melting process by “flipping” the observation point so the barrel appears to be turning clockwise around a stationary screw.
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Use These 7 Parameters to Unravel the Melt Temperature Mystery
Despite its integral role in a stable process and consistent parts, true melt temperature in injection molding can be an enigma. Learning more about these seven parameters may help you solve the puzzle.
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A Guide to Single-Screw Mixers
To design the best mixers for single screws, you must completely understand how polymer moves through a mixer channel or groove.
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Part 3: The World of Molding Thermosets
Thermosets were the prevalent material in the early history of plastics, but were soon overtaken by thermoplastics in injection molding applications.
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How to Design Three-Plate Molds: Part 5
There are many things to consider, and paying attention to the details can help avoid machine downtime and higher maintenance costs. In this installment, the focus is on design and placement of sucker/puller pins.
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