How the ‘Big 4’ commodity materials came to be.
There are still companies that compound glass fibers on single screws. The process is considered an “art,” but can be made more predictable with attention to screw design, speed and length, as well the choice of mixer.
Creating and maintaining a consistent cushion is a key step in achieving shot-to-shot consistency. Learn what cushion is and how it affects part quality.
This fourth and final installment focuses on labor, packaging, secondary operations and various assorted details.
Creation of an invention like phenolic can be traced through a long chain of events and contributors. Here’s the full story.
Calculating polymer flow is fairly straightforward when designing a die for a simple round profile, but as the shapes get more complicated these calculations can get extremely challenging. Here’s what you need to consider.
When determining the best ejection option for a tool, molders must consider the ejector’s surface area, location and style.
In this installment we discuss the discovery of Bakelite, the first truly synthetic polymer, known today as phenolic.
Molders looking to both monitor an injection molding process effectively and manage production can definitely do both with tools available today, but the question is how best to tackle these twin challenges.
Follow these detailed tips to get the jobs you want. This installment focuses on the mold and the molding machine.