Injection molding injects molten plastic into a mold to create various parts and products. First, the plastic is heated until it is in a liquid state and injected into the mold under high pressure. Once the plastic has cooled and solidified, the part or product can be ejected from the mold.

Before injection molding can take place, the mold must be designed and created. This is typically done using computer-aided design (CAD) software. Once the design is finalized, the mold is then machined from a piece of metal, typically steel or aluminum. The type of metal used will depend on the application of the final product and the properties required.

Once the mold is created, it must be prepared for injection molding. This typically involves coating the mold with a release agent, which will help to prevent the plastic from sticking to the mold during injection and ejection. The mold is then placed into the injection molding machine, which is heated to the correct temperature.

The plastic pellets are then fed into the injection molding machine, where they are melted and injected into the mold under high pressure. The plastic is then allowed to cool and solidify before the part or product is ejected from the mold.

Plastic injection molding is a versatile manufacturing process that can create parts and products of all shapes and sizes. With proper design and preparation, injection molding can produce high-quality parts and products with various applications.