The forming process of diamond mesh mainly includes weaving, stamping, and stretching. Woven diamond mesh is formed using a "stretch weaving" process; stamped diamond mesh is made by stamping and cutting metal sheets; and stretched diamond mesh is made by shearing and stretching metal sheets.
Process Quality Control: For woven diamond mesh, the diagonal deviation of the mesh openings and the consistency of the wire diameter must be inspected. The diagonal deviation of the mesh openings should be less than or equal to ±3% of the design value, and the wire diameter deviation within the same mesh sheet should be less than or equal to ±0.05 mm. For stamped diamond mesh, the flatness of the cut and the quality of the hole edges must be inspected. The burr height of the cut should be less than or equal to 0.1 mm, and there should be no obvious tearing or curling at the hole edges. For welded mesh, the weld points must be full and free of incomplete welds, and the tensile strength of the weld points should be greater than or equal to 80% of the tensile strength of the base material. For woven mesh, the wire intersections must be securely fastened, and the single-wire slippage force should be greater than or equal to 50 N.
Surface Treatment Processes: Surface treatment processes for diamond-shaped wire mesh include electro-galvanizing, hot-dip galvanizing, powder coating, PVC coating, and electrolytic polishing. Pickling is a crucial pretreatment step for removing oxides, oil, and other impurities from the metal surface, improving the material's surface quality and laying a good foundation for subsequent processing. If galvanizing or plastic coating is used, the adhesion, thickness, and corrosion resistance of the coating must be tested. For example, the thickness of the galvanized layer should be greater than or equal to 80 micrometers, and the thickness of the plastic coating should be greater than or equal to 120 micrometers.