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What are the advantages of co-rotating parallel twin-screw extruders?

by:TENGDA     2022-09-26

When the co-rotating parallel twin-screw extruder produces masterbatch, it is often necessary to change the color. If it is necessary to change the product, open the open processing area within a few minutes, and also observe the melt profile on the entire screw. The mixing process was analyzed. At present, when changing the color of the ordinary twin-screw extruder, it needs to use a large amount of cleaning material to clean the machine, which is time-consuming, power-consuming, and waste of raw materials. The split-type twin-screw extruder can solve this problem. When changing the color, the barrel can be quickly opened for manual cleaning in a few minutes, so that no or less cleaning materials are used, which saves costs. At present, the development trend of twin-screw extruders in the world is to develop in the direction of high torque, high speed and low energy consumption. The effect of high speed is high productivity. Split-type twin-screw extruders belong to this category, and its rotational speed can reach 500 rpm. Therefore, it has unique advantages in processing high-viscosity and heat-sensitive materials. High yield, high quality and high efficiency can be achieved.

Due to the convenience of opening, the wear degree of the threaded elements and the bushing in the barrel can be found at any time, so as to carry out effective maintenance or replacement. It will not be discovered when there is a problem with the extruded product, causing unnecessary waste. During equipment maintenance, the heating and cooling systems of the common twin-screw extruder are often removed first, and then the screw is pulled out as a whole. The split-type twin-screw does not need, just loosen a few bolts, turn the worm gear box handle device to lift the upper half of the barrel to open the entire barrel, and then carry out maintenance. This not only shortens the maintenance time, but also reduces the labor intensity.

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