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Plastic pellet machine operation

by allen guo Energy processing
Extrusion molding of plastic bars generally uses a single screw plastic pellet machine. The structural form of the screw is selected according to the raw material of the plastic bar. The precautions f
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  • (1) Raw materials should be dried before being put into production.
  • (2) The selection of the specifications of the plastic granulator should be noted that the diameter of the screw is close to the diameter of the extruded rod.
  • Extrusion of plastic rods with smaller diameters by large-size plastic granulators not only increases the production cost of the products but also wastes energy.
  • (3) In order to ensure the plasticizing quality of the raw materials, a porous plate should be added before the barrel is extruded and, if necessary, 2-3 layers of 80 mesh filter should be added.
  • (4) Pay attention to the choice of the shape of the die when extruding the cross-sectional shape of different products. If the section of the product is square, the shape of the discharge port of the
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Review on Plastic pellet machine operation

Extrusion molding of plastic bars generally uses a single screw plastic pellet machine. The structural form of the screw is selected according to the raw material of the plastic bar. The precautions for the production of plastic bar extrusion molding are as follows:

(1) Raw materials should be dried before being put into production.

(2) The selection of the specifications of the plastic granulator should be noted that the diameter of the screw is close to the diameter of the extruded rod. Extrusion of plastic rods with smaller diameters by large-size plastic granulators not only increases the production cost of the products but also wastes energy.

(3) In order to ensure the plasticizing quality of the raw materials, a porous plate should be added before the barrel is extruded and, if necessary, 2-3 layers of 80 mesh filter should be added.

(4) Pay attention to the choice of the shape of the die when extruding the cross-sectional shape of different products. If the section of the product is square, the shape of the discharge port of the die must be shape. Insulation pads must be added between the two parts of the die and the sizing sleeve. The temperature control between the two parts has a great influence on the quality of the indium.

(6) The extrusion molding temperature of the plastic pellet machine should be controlled at a temperature higher than the melting temperature of the raw material by 20-30 C. If the temperature is too high, the product is prone to bubbles; the temperature is low, and the quality of the raw material is poor.

(7) Heat treatment is performed after the larger diameter bar is formed to eliminate internal stress. The heat treatment method may be a water bath or an oil bath, or an oven may be used, and the product is placed in an oven or oil heated at a temperature of 100-130 C, at a constant temperature of 1-4 h, and then gradually lowered to room temperature with the furnace temperature. I hope that I can help y

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About allen guo Freshman   Energy processing

6 connections, 1 recommendations, 32 honor points.
Joined APSense since, March 25th, 2019, From zhengzhou, China.

Created on Oct 30th 2019 23:47. Viewed 48 times.

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