Injection Molding

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Published: 6/1/2019

Rethinking Machine Nozzle Tips: Hybrid Design Boosts Flexibility, Efficiency
New cold-sprue and hot-runner nozzle tips promise utility across a wide range of materials, eliminating the need to swap out different tips for different jobs while also promising to solve scrap and process issues.

Published: 6/1/2019

PART 3 Cobots: The New Option for Injection Molders
Take all the versatility of an articulated-arm robot, and add the ability to work safely in proximity to humans without guarding, and you have a new option for freeing workers from repetitive operations.

Published: 6/1/2019

Water Injection Beats Gas Assist in Lightweighting Car Door Panel
Renault’s conversion from metal-frame construction to plastics prototype switched from gas assist to water injection. Here’s why and how.

Published: 6/1/2019

How to Manage Pressure Loss in Injection Molding
Achieving a process window wide enough to ensure consistent part quality depends on achieving sufficient pressure at end of fill.

Published: 6/1/2019

Shoulder Bolts: Why They’re Too Important to Ignore (Part 1)
These humble but essential fasteners used in injection molds are known by various names and used for a number of purposes.

Published: 6/1/2019

Placing a Bet on Bioplastics
Steinwall has put years of R&D into learning to design and mold with biopolymers and natural-fiber reinforcements. Now that groundwork is beginning to pay off.

Published: 5/20/2019

LSR Molders Now Can Tailor Cure Speed, Temperature & Durometer
Elkem’s LSR Select is enabling faster cures at lower temperatures and custom durometer blends. Dosing equipment has caught up with capabilities of this novel material system.

Published: 5/6/2019

System Offers 'Lights Out' Mold-Channel Cleaning & Diagnostics
New system automatically cleans mold-cooling lines—including conformal channels—removing rust and calcium, among other deposits, while simultaneously testing for leaks, measuring flow rate and applying rust inhibitor.

Published: 5/1/2019

Super-Compact Auxiliary Injection And Intrusion Units
Unusually compact secondary injectors outfit standard presses for multicomponent and sandwich molding.

Published: 5/1/2019

How to Quickly Verify Your Machine & Process Setpoints
For a quick check of your process setup, the injection-pressure-vs.-time graph is your best tool.