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Corrosion is one of the important factors of screw barrel wear
Strictly speaking, corrosion and wear are two completely different phenomena. The precondition for wear is the inevitable powerful effect and the existence of relative movement. Corrosion is only a chemical reaction. Even if the screw does not move, the molten material will cause corrosive damage to the screw surface. Various components that are decomposed when the plastic is heated, such as...
2018-01-22
Five technical difficulties to be overcome in the extruder screw
How to improve their life expectancy and other issues need to be resolved. The decrease of the residence time of the material in the screw will lead to uneven mixing and plasticization of the material. Excessive shearing of the material may cause sudden temperature rise and thermal decomposition of the material. Difficulties in controlling the extrusion stability will cause changes in the size of ...
2018-01-22
How to save power and better maintenance of twin-screw extruder
The twin-screw extruder refers to the fact that in the dispersion in which the solid powder and the liquid coexist and is mainly composed of a solid phase, the basic particles of the solid powder are adhered to each other and increased in a forced manner by using the self-adhesion of the dispersion. And form a certain shape and size of uniform, concentrated particles. Below for everyone to briefly...
2018-01-22
How injection molding manufacturers choose screw barrel
When plastics are modified, some glass fiber, fillers, etc. will be added, which will damage the screw. What is the best way to handle the screws and drums?
2018-01-22
How to design the shape of the extruder screw head
In the extrusion process, when the plastic melt enters the flow path of the head from the spiral groove, the flow pattern of the plastic melt changes drastically from spiral ribbon flow to straight flow. In order to obtain better extrusion quality, it is required that the material flow enter the machine head from the extruder screw as smoothly as possible, and more importantly, the generation of...
2018-01-22
