Several methods of plastic molding

Plastic manufacturing products have been widely used by most consumers. The plastic products that are commonly used include car bumpers, cellular phones, incubators for babies and some other things for households or industries. Each of these products may require different approaches.

Plastic mold is diversified by some different manufacturers because it can be easily molded. There are several common methods of molding plastic. There are three methods of plastic molding that are commonly used.


Wound casting

This method of plastic molding begins by melting the liquid plastic in the chamber of the machine and then sending the liquid plastic to a mold to create the desired shape. Especially to make hello products like blow molding bottles, motorcycle fuel tanks, hoses, bumpers, and some other blank products. In addition, the final product is seamless. The main process of this method is to blow the air and lock it so that it creates openness. When the liquid plastic is molded, the plastic hardens so that you can shape it to your liking. Then, you can pull the mold through a mold cavity.

Injection molding

This type of method uses thermoplastics. Among other methods, it is often used by the manufacturer. Methods include shooting a liquid ceramic thermoplastic at high speed in a ceramic mold.  The plastic will be cooled with small vents on each side. Once it cools, it will be removed and then painted. However, this method leaves a small seam so that the final product is finished for better results. Products made with this method include toys, MP3 player cases, car dashboard casing, and more.


This approach focuses on creating larger items that are primarily used for industrial and upholstery use. This method is quite simple. All you need to do is heat the plastic to the desired temperature so that it is able to form the desired shape. Then, the small machine will add any detail to items such as body polishing, decorating, and stamping tracing. Common products of this method include aircraft windscreens, truck beds, industrial palettes, and a few other large items.

3 types of the plastic molding process

In general, there are two main types of plastic molding such as thermosets and thermoplastics. The main difference between these two types of plastics is that thermoplastics dissolve at higher temperatures but thermosets harder at higher temperatures.

The above difference is mainly caused by the polymers that make up these two plastics. Thermoplastics contain polymers that look like chains of atoms within a one-dimensional string. Since they melt at high temperatures, they can be resized. Thermosets, on the other hand, are made from a polymer with three-dimensional chains so that they are able to keep their shape. There are many processes for shaping or ingesting plastics using thermoplastics or thermosets.

Injection molding is another process of molding. The principle used for this process is usually the same as extrusion. The raw plastic will be fed into the molten chamber through a grasshopper. The difference is that the molten plastic is thrown into a cold mold with high pressure. If the mold is cooled, the product will be clean and finished. The items that are usually made by injection molding are bottle caps, butter containers, lawn furniture, and toys.

Blow molding is another type of plastic molding process that uses a process method after extrusion or injection molding. The extrusion process uses a dye to create heated plastic tubes with cooling molds around the melted plastic. As the extrusion flows, the compressed air will blow through the tube so that it will force the plastic to form a hollow shape. With this method, the manufacturer does not need to connect the various injection-molded parts. On the other hand, the injection blowing method removes the molten mold in various colds in the final form.

Plastic mold is very popular today. It is capable of making different plastic products for different needs. You can also get custom plastic injection mold China  to create your own shape. But to get the best results you need to use proper injection molding equipmen

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