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How is a qualified screw made
26-11-2020
1. The screw should be able to swept across the inside and outside of the whole screw closely to obtain outstanding heat conduction, mixing effect and narrow residence and spreading time. 　　2. The radial gap betw...
Screw data and strength calculation
18-11-2020
(1) Screw data 　　 1. Requirements for raw materials 　　It can be known from the extrusion process that the screw is operated under high temperature, certain corrosion, intense wear, and high torque. Therefore, the screw m...
Single screw extruder extrusion molding theory
12-11-2020
The extrusion process of a polymer in a single-screw extruder can be described by the fundamental functions of each section of the screw and the change in the state of the polymer in the extruder 　　 Feeding section: The ...
Knowledge of injection molding machine screw and barrel
05-11-2020
1. Several important parameters of the screw 　　1, screw diameter (D) 　　A. Related to the required injection volume: 　　Injection volume=1/4*π*D2*S (injection stroke)*0.85; 　　B. Generally speaking, the screw diameter D is ...
Explain in detail the 5 major wear reasons of screw
28-10-2020
There are 5 main points in the detailed explanation of screw wear, as follows: 1. Each kind of plastic has a desired plasticizing temperature scale. The barrel processing temperature should be controlled to make it close...
Twin screw machine and single screw machine plastic use
22-10-2020
Advantages of twin screw extruder and single screw extruder? ① There is less heat in the process of extrusion. ② The meshing shear action of the material in the barrel is stable and uniform, and the plasticizing quality ...