Performance characteristics and precautions of twin screw extruder
Twin screw extruders are currently widely used in certain industries and are well received due to their advantages and significant characteristics. With the continuous development of various industries, the prospects of twin screw extruders are bound to be even broader. Next, the editor will introduce the product performance characteristics and application scope of twin screw extruders.
1. Product performance characteristics of twin screw extruder
High strength European standard integrated rack, practical and beautiful;
Servo degree European standard integrated rack, practical and beautiful;
The modular cylinder and screw structure can be combined according to the experimental process needs, practical and convenient, with strong material applicability. The cylinder and screw materials are made of special steel, which is wear-resistant and corrosion-resistant;
Quick opening machine head, screen changer, faster material cleaning, optional melt pump, can achieve precision, high-pressure extrusion;
The compact integrated vacuum exhaust cooling system adopts brand core components, with high reliability and low noise;
Humanized structural design, SIEMENS PLC touch screen, more convenient operation.
2. Precautions when using a twin screw extruder:
The temperature of each part of the twin screw extruder barrel gradually increases from the feeding section to the junction between the barrel and the mold;
The temperature of the mold is slightly higher than the temperature of the mold. The high temperature is controlled at 5-10 ℃. The temperature at both ends of the mold is slightly higher than the middle temperature, and the higher temperature is controlled at 5-10 ℃;
When using the insert form, the roll surface of the three roll intermediate roll should be on the horizontal plane below the die edge, and the lip end face should be parallel to the centerline of the intermediate roll with a spacing of 50-100mm;
The die gap of the twin screw extruder should be slightly less than or equal to the plate thickness, and the lip gap should be slightly less than the gap between the die ports on both sides;
When cleaning the roller surface, it is not allowed to scratch it with a hard knife, but the residue on the roller surface should be cleaned with a copper knife;
The roller surface of the twin screw extruder should have a medium height, and the gap between the three rollers should be equal to or slightly greater than the thickness of the steel plate;
The temperature control of the mold should be stable. When the temperature is high, the flow rate of the melt in the crystallizer becomes faster; When the temperature is low, the flow rate of the melt in the crystallizer slows down. The instability of melt flow rate can cause significant errors in the longitudinal thickness of the sheet metal.
The above is the relevant content about twin screw extruders introduced for everyone. If you want to learn more, please follow us. Our company specializes in selling twin screw extruders, twin screw extruders, pet feed processing line, soya protein production lines, etc.
