What is the plastic molding process like?

The steps of plastic molding are short, this time is between 3 seconds to 2 minutes and is formed in the following four basic steps.

Bolts
First, the two halves of the mold must be carefully and securely closed with a clamp, and then the plastic material is injected into the mold.
The two halves of the mold are pushed together using a clamp, providing sufficient force for the material to be poured into the mold, keeping the mold secure.

The length of time it takes for the mold to close and hold firmly depends on the machines, and this time can be estimated from the dry cycle time of the machine.

plastic injection
One of the stages of the plastic injection process is injection, the raw plastic material is in the form of a cube or a ball, these materials are directed into the plastic molding machine and in the injection unit, it is pushed forward in the mold. At this stage, the injected material melts due to heat and pressure.

As a result, the molten plastic is quickly injected into the mold and compresses and holds the injected material by increasing the pressure. One of the terms used in this industry is shot and it is called the amount of injected material. It is difficult to accurately estimate the injection time, and factors such as shot volume, injection pressure, and injection strength can be estimated using injection time.

Cooling stage
The molten plastic that is placed inside the mold, as soon as it comes in contact with the inner surface of the mold, begins to cool, and solidifies and takes the shape of the desired piece.

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