Classification of wire ropes
2022-09-14
1. The carbon Steel Wire Rope is made of high-quality carbon structural steel wire as the raw material. 2. Stainless Steel Wire Rope is made of stainless steel wire as raw material and twisted. Sort by Surface State 1. Phosphating Coated Steel Wire Rope (Chinese patent), referred to as phosphating steel wire rope. The weight of the phosphating film of rope steel wire is 3-60g/m2. After phosphating, the steel wire is not cold drawn before twisting. Strands, cores and wire ropes are twisted directly. The phosphating film can improve the wear resistance and corrosion resistance of the surface of the rope making wire, and effectively inhibit the occurrence of fretting fatigue. For the phosphating treatment of steel wire for rope making, manganese or zinc-manganese phosphating is preferred. The phosphating steel wire does not need any drawing process, and the phosphating steel wire is directly used for winding the wire rope. Since the phosphate coating makes the surface of the steel wire more wear-resistant, and the phosphate film is non-conductive, the corrosion resistance of the steel wire can be improved at the same time. The service life of the phosphating steel wire rope is 2-3 times that of the smooth wire rope, and the fatigue resistance of the steel wire rope is greatly improved. Phosphating wire rope is not only an ideal substitute for smooth wire rope, but also can completely replace imported wire rope. 2. Galvanized steel wire rope includes hot-dip galvanized and electro-galvanized. The protection of the galvanized layer on the steel wire belongs to the anodic protection. The thicker the zinc coating, the stronger the corrosion resistance 3. Plastic-coated steel wire rope: The outer surface of the steel wire rope or the outer surface of the strand rope is coated with a certain thickness of plastic, including polyethylene, polypropylene, polyurethane, etc. 4. Smooth steel wire rope is a rope-making steel wire that is cold drawn after heat treatment and surface treatment of raw materials (Note: the phosphate film formed during the pretreatment process will gradually fall off due to strong friction with the drawing die during the cold drawing process). The wire is not subjected to any surface treatment to directly twist the strand, core and wire rope. It was produced abroad in 1834, and in 1939 in Tianjin No. 1 Wire Rope Factory.
