Buy Automotive mold tool for vehicle interior part introduces mold classification knowledge
Release time:
2021-09-28 08:46
Source:
How much do you know about the classification of molds? The editor of Buy Automotive mold tool for vehicle interior part will give you a brief introduction.
1. Compression mold
Compression mold is also called compression mold or compression mold. The molding process of this mold is characterized by adding plastic raw materials directly into the open mold cavity, and then closing the mold. After the plastic is in a molten state under the action of heat and pressure, the cavity is filled with a certain pressure. At this time, the molecular structure of the plastic has a chemical cross-linking reaction, which gradually hardens and sets. Compression molds are mostly used for thermosetting plastics, and their molded plastic parts are mostly used for the shells of electrical switches and daily necessities.
2. Transfer Mode
Transfer mold is also called pressure injection mold or extrusion mold. The molding process of this mold is characterized by adding plastic raw materials into the preheated feeding chamber, and then applying pressure from the pressure column to the plastic raw materials in the feeding chamber. The plastic is melted under high temperature and high pressure and enters the cavity through the casting system of the mold. The chemical cross-linking reaction occurs and gradually solidifies and forms. The transfer molding process is mostly used for thermosetting plastics, which can form plastic parts with more complex shapes.
3. Extrusion die
The extrusion die is also called the extruder head. This kind of mold can continuously produce plastics with the same cross-sectional shape, such as plastic pipes, rods, and sheets. The heating and pressurizing device of the extruder is the same as that of the injection machine. The plastic in the molten state will form a continuous molded plastic part through the machine head, and the production efficiency is particularly high.
The above is the editor of Buy Automotive mold tool for vehicle interior part: a brief introduction to the relevant knowledge of mold classification.
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