The relationship between the production capacity and the screw speed of the plastic extruder is that as the screw speed increases, the production capacity increases, but the plastic extruder screw speed is too high, the production capacity does not increase much, and the rubber is easy to burn. The relationship between the power and the screw speed of the plastic extruder is that as the screw speed increases, the power also increases, but the rate of power increase with the screw speed of the plastic extruder gradually decreases. The relationship between the head pressure and the number of screw revolutions of the plastic extruder is that as the screw speed increases, the head pressure also increases. Rubber material and barrel: The relationship between speed and rubber material shearing, kneading, plasticizing, and heating in the barrel. Transmission system: The relationship between the transmission system and the screw speed of the plastic extruder is that the lower the screw speed, the greater the reduction ratio of the transmission system, which complicates the structure of the transmission system.
The hardness of the inner surface of the barrel of the plastic extruder is higher than that of the plastic extruder screw, and its damage is later than that of the plastic extruder screw. The scrap of the barrel of the plastic extruder is that the inner diameter increases with time. The barrel of the plastic extruder is increased in diameter due to wear. If the barrel of the plastic extruder has a certain nitriding layer, the inner hole of the barrel can be directly bored and ground to a new diameter. A new extruder screw was then prepared to this diameter.
The inner diameter of the barrel of the plastic extruder is machined and trimmed to recast the alloy, with a thickness of 1 ~ 2mm, and then finished to size. In general, the homogenization section of the barrel of the plastic extruder wears quickly. This section (5 ~ 7D length) can be trimmed by boring, and then equipped with a nitrided alloy steel bushing. The diameter of the hole refers to the diameter of the extruder screw. The plastic extruder barrel and the plastic extruder screw are left in the normal fit gap for processing and preparation.