Plastic Extrusion Process
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The plastic extrusion process is used in the making of all kinds of plastic products. Without the plastic extrusion process a lot of things products that we have could never exist. At the center of the process is the material that is used which is thermoplastic material. For the purposes of the plastic extrusion process, thermoplastic material comes in the form of small plastic beads that are called resin.
The first step in the plastic extrusion process is to get these small resin beads into a barrel which is referred to as the hopper. The resin beads are fed into the hopper by a gravity feed as the barrel is turning so that the plastic extrusion process can mix them all up as they melt. If the product is to be a certain color, that color is also added into the hopper which heats and mixes the thermoplastic beads to a set temperature. It then travels through a feedthroat to an industrial sized screw at the bottom. Cooling fans are also used in the plastic extrusion process to keep the melted plastic below a certain heated temperature.
The next step in the plastic extrusion process is for the melted plastic to travel down the length of the screw and then through several screens which will filter out anything that may have contaminated it. As the melted plastic goes through the screens it travels down and into the die which will give the plastic its shape. The products that are made by the plastic extrusion process are used in numerous industries like the electronics & light industry, electronic equipments industry, packaging industry and other miscellaneous manufacturing industries.
The plastic extrusion process is one type of process used for making plastic products. Another type is called plastic injection molding. When the extrusion process is used the finished product is dropped on a conveyer belt to be cooled with water. Plastic film, sheets and pipes can also be made using the plastic extrusion process.
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