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How does injection molding work?

injection molding
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How does injection molding work?

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Injection moulding is done by melting plastic pellets into a liquid form and injecting that substance into a preformed mold. After cooling, any excess plastic is scraped away.

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Overview of Injection Molding Injection molding is a method of manufacturing parts from plastic. Plastic pellets are placed in a large hopper, which feeds the pellets into a heated chamber. The chamber melts the pellets and injects the liquefied plastic into a variety of molds, where the plastic cools and hardens into the appropriate shape. Once the plastic has cooled, the piece is removed from the mold. Excess plastic is scraped away and recycled, and the finished piece is polished and cleaned. Injection molding takes place in large machines, and the necessary molds are purchased from specialty toolmakers, who build the molds from steel or aluminum. Injection Molding Process jQuery(document).ready(function(){ jQuery(‘#jsArticleStep1 span.image a:first’).attr(‘href’,’http://i.ehow.com/images/a04/lu/5g/injection-molding-work-2.1-800X800.jpg’); }); Diagram of Injection Molding Process The first step in the injection molding process is to feed plastic pellets into the hopper, which then f

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Injection moulding is done by melting plastic pellets into a liquid form and injecting that substance into a preformed mold. After cooling, any excess plastic is scraped away. For more information, look here: http://www.ehow.com/how-does_4913328_inj…

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