The manufacturing process of screens mesh varies depending on the material and type, but generally includes the following key steps:
1. Material Selection: Selecting appropriate materials based on the intended use of the screen, such as stainless steel, polyurethane, or metal wire.
2. Raw Material Preparation: For polyurethane screens, raw material preparation is required, including oligomeric polyols, polyisocyanates, toluene diisocyanates, etc. Some materials require dehydration treatment before use.
3. Drawing Design: Designing the screen drawings according to requirements, determining parameters such as aperture diameter and dimensions.
4. Punching or Weaving: For perforated screens, punching equipment is used to create evenly distributed holes in the material.
For woven screens, a weaving machine is used to weave metal wire or synthetic fiber into a mesh.
5. Mold Manufacturing: For certain types of screens, such as polyurethane screens, mold manufacturing and assembly are required.
6. Platform Heating: Heating the mold or material to a certain temperature ensures smooth subsequent processing. 7. Casting Process: Polyurethane and other materials are used for casting. Depending on production conditions, both manual and mechanical methods can be employed.
8. Electroforming: For high-precision electroformed screens, the screens are manufactured through steps such as film lamination, vacuum magnetron sputtering, laser direct writing exposure, etching, and chemical micro-deposition.
9. Surface Treatment: Surface treatments such as sandblasting, galvanizing, and painting are applied to improve corrosion resistance and wear resistance.
10. Vulcanization Treatment: For polyurethane screens, vulcanization treatment is required after molding to ensure their quality and performance.
11. Inspection and Shipment: Finally, the screens are inspected to ensure they meet quality standards before shipment.
Through these steps, various types of screens that meet requirements can be produced, ensuring their performance and lifespan in use.
