Injection Molding Process of Automobile Injection Molding Parts

Pretreatment of 1. plastic granules

The first step in the production of automotive injection molded parts is the pretreatment of plastic particles. In this process, the plastic raw material needs to be heated and melted to become a melt that can be injection molded. The first step of pretreatment is to put the plastic particles into the hopper, and then transport them to the feeding area of the injection molding machine. After heating and compression, the plastic raw material gradually melts and forms a melt.

2. injection molding

Injection molding is the core step in the production of automotive injection molded parts. In this process, the pre-treated melt is injected into the injection mold and cooled to form the required automotive injection molded parts. Injection molding can be divided into the following steps:

1. Close the mold: The operator joins the two molds to ensure the integrity of the mold.

2. Inject the melt: inject the pretreated melt into the mold cavity to fill the entire mold.

3. Cooling treatment: The melt is cooled in the mold until the molding is completed.

4. Take out the finished product: When the automobile injection molding is completed, it should be taken out of the injection mold as soon as possible.

3. cooling treatment

In the process of automobile injection molding, cooling treatment is a very important step. The cooling process needs to ensure that the injection molded parts are fully cured and maintain dimensional stability. Generally speaking, the cooling time is related to the size, structure and material of the injection molded parts and should be adjusted according to the actual situation.

4. removal and post-treatment

When the automobile injection molded parts are cooled and formed, they need to be removed from the injection mold for post-processing. In this process, it is necessary to remove burrs, trim, and polish the injection molded parts to ensure the appearance quality of the product. In addition, for the injection molded parts that need to be installed, it is also necessary to cut, open holes, splice and other processing according to the actual situation.

Summary: The injection molding process of automotive injection molded parts includes steps such as pretreatment of plastic particles, injection molding, cooling treatment, removal and post-processing. The quality and efficiency of injection molding play a very important role in the production of auto parts. It is necessary to pay attention to various processes and details to ensure the quality and appearance of the product.