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Plastic extruder
Release time:2018-01-17 15:52:38| Times of browsing:
There are a wide variety of plastic machinery. According to the processing technology, it is divided into three categories: extruder, injection molding machine and blow molding machine.


Extruder

In the screw extruder is under the action of the molten plastic extrusion through fixed shape extrusion, water cooling after cutting in the traction machine under the same section is mainly used for a variety of products. A large number of continuous production, such as pipe, rod \ profiles, also can be used for plastic modification and granulation.

The basic mechanism of the extrusion is simple - a screw rotates in the cylinder and pushes the plastic forward. The screw is actually a slope or slope that is wrapped around the center layer. The aim is to increase the pressure to overcome the greater resistance. Is an extruder, there are 3 kinds of resistance to overcome: solid particles (feed) on the cylinder wall friction and screw rotation before laps (feed) the mutual friction between them; melt in the cylinder wall adhesion; melt pushed forward when the resistance of the internal logistics.

It is divided into single screw extruder and twin screw extruder.

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