Process flow of twin-screw extruder
During the working process of the twin-screw extruder, it is necessary to adjust the temperature of the equipment according to the chemical properties of the plastic to provide the required stable temperature. The material is completely transformed from the glass state to the molten state. Furthermore, because the material passes through the mouth of the twin-screw extruder, it will be subjected to a certain amount of resistance and the compression ratio at different stages, so the plastic itself does not exist in a state of normal pressure. The compression stage inside the screw is balanced and stable, and different nozzles will bring some influence.
When the extrusion speed of the twin-screw extruder is not changed, the feeding speed of the equipment is increased or decreased. During the feeding stage, the capacity of the storage place will also change. The change of the material while the storage space remains unchanged will cause the compression to change. Compression is the same. The stage changes with the compression ratio, so the temperature required for compression will also change. In the opposite case, that is, the feeding speed remains unchanged, and the speed of the twin-screw extruder is increased or decreased, and the storage place of the material will also change, which is only due to the change of the melting pressure caused by the increase or decrease of the speed.
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