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Plastic extruder manufacturer Jul 19,2019
Plastic extrusion is produced by a method called plastic extrusion. Plastic extrusion is a manufacturing process in which the original plastic material is melted and then formed into a continuous profile. Plastic extrusion can produce various types of different items, especially suitable for manufacturing window frames, pipes, pipes and weather strips. In order to extrude plastics into various forms, a thermoplastic raw material known as a resin in the extrusion industry and materials in the form of beads are charged into a gravity feed hopper, which is installed on the top of the extruder barrel . Before the resin is loaded into the hopper, UV inhibitors and additives are usually mixed into the resin.

The resin is dropped into a barrel equipped with a screw, which can be rotated from any speed to 120 rpm. The screw pushes the resin or plastic bead along the barrel heated to the required temperature, which can range from 200 degrees Celsius to about 275 degrees Celsius. Control the temperature of the bucket along its length so that the beads move along it and the temperature will rise. This gradual heating of the resin gradually melts and more evenly melts as it is forced through the barrel, minimizing the risk of overheating, which in turn causes polymer degradation. If excessive heat is generated, a cooling fan can be used to reduce the temperature of the barrel. The plastic leaves the screw from the front of the barrel and passes through the screen assembly to remove any contaminants that may be present in the molten plastic. The screen is reinforced by a crusher plate, which also helps to generate support pressure in the barrel, which is necessary to uniformly mix and melt the polymer. When the molten plastic passes through the partition, it enters the mold. The mold imparts the final shape or contour to the product and must be designed to allow the molten plastic to flow uniformly from the cylindrical contour to the final contour form of the product. As long as the contours are continuous, you can use this process to create a large number of different shapes and forms. The final heated product was then cooled by drawing through a water bath. Compared to some metals, plastics dissipate heat about 2,000 times slower because plastics are very effective thermal insulators. Once the product has cooled, it can be cut to a controlled length or wound for later use.

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