How Does an Injection Molding Machine Work?

The molten plastic is then propelled forward by a screw or plunger through the injection unit. This movement is not merely a transfer but a critical phase where the plastic is prepared under pressure for injection into the mold cavity.

The precision with which the molten plastic is injected into the mold is pivotal, as it ensures the material fills the entire cavity, reaching every nook and cranny to replicate the mold’s intricate designs and shapes.

Once the mold is filled, the plastic needs to cool and solidify, a transformation that is as crucial as the melting process. The cooling period is meticulously timed to ensure the material sets correctly, embodying the desired characteristics of strength, durability, and aesthetic appeal.

Upon solidification, the newly formed plastic part is ejected from the mold, marking the culmination of a process that melds raw materials into functional, often essential, products.

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