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What are the characteristics and classification of injection molds?


Author: MULAN -Plastic Molding Manufacturer

Injection mold is a tool for producing plastic products; it is also a tool for giving plastic products a complete structure and fine dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, the heated and melted plastic is injected into the mold cavity through the injection molding machine under high pressure, and the molded product is obtained after cold solidification.

Injection molds are divided into thermosetting plastic molds and thermoplastic molds according to the molding characteristics; according to the molding process, they can be divided into transfer molds, blow molds, casting molds, thermoforming molds, hot compression molds (compression molds), injection molds, etc. . Among them, hot pressing die can be divided into overflow die, half overflow die and non-overflow die. Injection molds can be divided into cold runner molds and hot runner molds.

According to the loading and unloading method, it can be divided into mobile type and fixed type. Although the structure of the mold may change due to the variety and performance of the plastic, the shape and structure of the plastic product, and the type of injection machine, the basic structure is the same. The mold is mainly composed of pouring system, temperature regulating system, molding parts and structural parts.

The gating system and molded parts are in direct contact with the plastic and vary with the plastic and the product. They are the parts with complex, large changes, high processing smoothness and high precision in plastic molds. The injection mold consists of a moving mold and a fixed mold.

The movable mold is installed on the movable template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form a gating system and a cavity. When the mold is opened, the movable mold is separated from the fixed mold to take out the plastic product. In order to reduce the heavy workload of mold design and manufacturing, most injection molds use standard mold bases.

For more information about injection molds, please visit the official website of Xingye:

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