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All You Need To Know About Different Molding Processes

Even as the world becomes more and more technology based, manufacturing still plays an important role in the production of important items. In the United States alone, more than a million Americans work in plastics manufacturing.


Plastics manufacturing plays an important role in the manufacture of parts and there are many methods used to produce those parts. There’s plastic injection molding, reaction injection molding and structural foam molding. To get a better understanding of what each of those processes entails, let’s take a closer look at each of them.


Plastic injection molding works by injection molten (red-hot) materials into a mold through a sprue bushing and hot runner nozzle. This process can be done with many different materials. In a process such as die-casting, molten metal is put through the brushing and hot runner nozzle. The metal is then put in a heated barrel and injected into a cavity, which then hardens more and more as it cools.

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