PP plastic injection mold

2025-04-02 16:57:04

PP Plastic injection mold is a kind of mold used for manufacturing plastic products with polypropylene (PP) material through injection molding process. Here is a brief introduction:

Structure

- Fixed Mold Plate: It is fixed on the Injection Molding Machine and holds the cavity. The molten PP plastic is injected into the cavity to form the product.

- Movable Mold Plate: It can move to open and close the mold. It usually has the core, which cooperates with the cavity to form the precise shape of the product.

- Runner System: It consists of the main runner and the sub - runners. The molten plastic flows through the runner system to evenly enter each cavity.

- Ejection System: After the plastic product is cooled and solidified, the ejection system is used to push the product out of the mold.

Working Principle

- Firstly, the mold is closed, and the injection molding machine injects the molten PP plastic into the mold cavity through the nozzle and the runner system.

- Then, the plastic cools and solidifies in the cavity according to the shape of the mold.

- Finally, the mold opens, and the ejection system ejects the formed product.

Characteristics

- High Precision: It can produce PP plastic products with high precision and good surface quality, meeting various requirements of different industries.

- Good Durability: Made of high - quality mold steel, it has good wear - resistance and can be used for a long time to produce a large number of products.

- High Efficiency: The Injection Molding Process is highly efficient, which can shorten the production cycle and improve production efficiency.

PP plastic injection molds play a crucial role in the production of PP plastic products, being widely used in automotive, electronics, daily - use products and other industries.