Surface state classification

 Phosphating coated wire rope welded steel wire (Chinese patent), referred to as phosphating steel wire rope welding wire, made of steel wire phosphating film weight 3-60 g / square meter, after phosphating, the steel wire is not cold drawn, directly Twisted strands, steel cores and wire rope welded steel wire, phosphating film can improve the wear resistance and corrosion resistance of the surface of the rope, effectively suppress the occurrence of fretting fatigue. The phosphating treatment of the steel wire is preferentially phosphating with manganese or Zn-manganese. After the phosphating of the steel wire, no drawing process is carried out, and the phosphating steel wire is used to weld the steel wire. The phosphating coating makes the steel wire surface more resistant. Grinding, and the phosphating film is not conductive, can simultaneously improve the corrosion resistance of the steel wire. The service life of the welded steel wire using the phosphating steel wire rope is 2-3 times that of the smooth steel wire rope welding wire, and the fatigue resistance of the steel wire rope welding wire is greatly improved. [1] Phosphating wire rope welding wire is not only an ideal substitute for smooth wire rope welding wire, but also has the ability to replace imported wire rope welded wire [2-3].

2. Galvanized steel wire rope welding wire, including hot-dip galvanizing and electro-galvanizing. The protection of the galvanized layer on the steel wire is anodic protection. The thicker the galvanized layer, the stronger the corrosion resistance.

3. Plastic coated steel wire welded steel wire, coated with a certain thickness of plastic on the outer surface of the wire rope welded wire or the outer surface of the strand, including polyethylene, polypropylene, polyurethane, etc.

4. Glossy wire rope welded steel wire, the rope wire obtained after cold-drawing the heat-treated and surface-prepared raw materials (Note: the phosphating film formed during the pre-treatment process is gradually detached from the wire drawing die during the cold drawing process), the steel wire The wire rope, steel core and wire rope welded wire were not directly processed by any surface treatment. The foreign production began in 1834, and the first wire rope welding wire factory in Tianjin began production in 1939.