The screw is a stressful part of the injection molding […]
The screw is a stressful part of the injection molding machine barrel. Its role is to transport, compact, melt, stir, and apply pressure to plastics. All this is done by the rotation of the screw inside the barrel.
As the screw rotates, the plastic reacts against the inner wall of the barrel, the bottom of the screw groove, the thrust surface of the screw edge, and the friction and mutual movement between the plastic and the plastic in the city.
The advancement of plastic is the result of this combination of activities, and the heat generated by the friction is also absorbed to improve the plastic temperature and melt the plastic. The layout of the screw will directly affect the level of these effects.
Therefore, the black and white of the screw material directly affects the function of the injection molding machine and directly affects the life of the screw. At present, most domestic screw rods are imported abroad and may be composite materials. Once the cracks in its profile are present, the entire screw will be scrapped. The domestic screw can also perform when extruding ordinary materials. Once the product with the strength of corrosion is extruded, the demand of the industrial and mining cannot be satisfied. Corruption is fast.