Latest Exhibition Information
How strong is the processing performance of Conical Twin Screw and Barrel
For the repair of Conical Twin Screw and Barrel, when the inner surface of the barrel is not severely worn or scratched, oilstone or emery cloth can be used to grind and polish on the lathe. When the inner surface of the barrel is severely worn, check the depth of the wear groove first, and calculate whether there is a heat-treated hard layer on the inner wall of the barrel after the wear layer is removed, and the surface of the inner hole of the barrel can be trimmed. If there is no heat treatment hard layer on the inner surface of the barrel after the mold is repaired, it can be matched with the gold sleeve in the barrel, or a centrifugal casting method can be used to cast a layer of cemented carbide on the inner wall of the barrel for use after machining and grinding.
Conical Twin Screw and Barrel features, wear resistance, long life, high temperature resistance, no deformation under high temperature. Corrosion resistance, the material is corrosive. Good cutting performance. High strength, can withstand high torque, high speed, small residual stress after heat treatment, small thermal deformation, etc.
The molding process of Conical Twin Screw and Barrel is to first add granular or powdered plastic into the barrel, and turn the screw and heat the outer wall of the barrel to make the plastic into a molten state, and then the machine closes the mold and moves the injection seat forward. Make the nozzle close to the gate of the mold, and then pass pressure oil into the injection cylinder to push the screw forward, so as to inject the melt into the closed mold with a lower temperature at a high pressure and a faster speed, and pass a certain amount of time. Time and pressure hold (also known as holding pressure), cooling to make it solidify and form, then the mold can be opened and the product can be taken out (the purpose of holding pressure is to prevent the backflow of the melt in the mold cavity, add materials to the mold cavity, and ensure the product Has a certain density and dimensional tolerances).