What is Automotive Injection Molding?
Automobile Injection Molding refers to the plastic product in which melted plastic material is injected into the cavity of the Automotive Injection Molding, and then cooled and formed through the cold runner.
What are the types of Automotive Injection Molding?
Types of Automotive Injection Molding have injection molding, stamping, forging, casting, etc. Each type of mold corresponds to different types of parts production.
Now more and more parts are made of plastic raw materials, so injection molds play a very important role. The classification of automobile plastic molds can be roughly divided into the following categories.
1. Injection Mold
The characteristics of the injection molding process are that the plastic raw material is placed in the heating barrel of the injection machine, the plastic is heated and melted, and driven by the screw or plunger of the injection machine, it enters the mold cavity through the nozzle and the pouring system of the mold. The plastics in the mold cavity are formed by heat preservation, pressure preservation, cooling, and solidification.
Since the heating and pressing device can function in stages, injection molding can not only mold plastic parts with complex shapes but also has high production efficiency and good quality. Therefore, injection molding occupies a large proportion of the molding of plastic parts, and injection molds account for more than half of plastic molding molds. The injection machine is mainly used for the molding of thermoplastics, and in recent years, it has also been gradually used for the molding of thermosetting plastic.
2. Compression Mold
The characteristics of the molding process of the compression mold are that the plastic raw material is directly added into the open mold cavity, and then the mold is closed. 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 produces 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 electrical switch shells and daily necessities.
3. Transfer Mold
The molding process of the transfer mold is characterized by adding plastic raw materials into the preheated feeding chamber and then applying pressure to the plastic raw materials in the feeding chamber by the pressure column. 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 into shape. The transfer molding process is mostly used for thermosetting plastics, which can mold plastic parts with complex shapes.
4. Extrusion Die
Extrusion dies also known as extrusion head. This die can continuously produce plastics with the same cross-sectional shape, such as plastic pipes, rods, sheets, etc. The heating and pressurizing device of the extruder is the same as that of the injection machine. The molten plastic passes through the machine head to form a continuous molding plastic part, and the production efficiency is particularly high.
The Advantage of Using the Automotive Injection Molding
The use of Automotive Injection Molding parts can reduce the weight of the car body, so it can increase the speed of the car.
The use of Automotive injection molding parts has good corrosion resistance, so it has a very long service life.
The material of Automotive injection parts is durable plastic material and easy to form, so it is conducive to processing, and saves more. manufacturing time, and improve production efficiency.
The above 3 points are Automotive injection molding advantages if we used it in car manufacture. If you are interested in producing Automotive injection molding and developing your new projects, do not hesitate to contact us, we will have a professional team to provide you with high-quality services at any time!
