Paper mill complete screw system is mainly used for process transportation, mixing, pressing, etc. The screw blade has three forms of solid spiral surface, belt spiral surface and blade spiral surface. The whole shaft of screw press shaft needs to consider the compression ratio, whether there are bright spots on the surface of the conveying shaft, whether the whole shaft processing and welding meet the requirements of film detection, and whether the whole shaft processing geometry meets the requirements. During the use of the whole shaft, the parts in contact with the fiber are easy to wear, and the vulnerable parts are treated with wear-resistant layers.

The material parameter characteristics of spiral shaft in paper mill are mainly reflected:

1, the material is more used 3 series stainless steel, such as: SUS30408, SUS31603;

2, all kinds of spiral shafts cover all forms of spiral blades such as diameter reduction, inclination, spiral belt, thickening and other special forms;

3, more shafts need all geometric dimensions processing, such as outer diameter, inner shaft, etc.

4, the whole shaft adopts the form of full welding.

5, the whole axis to ensure concentricity.

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