Smooth wire rope:
Smooth steel wire → twisting → winding.
Phosphating coated wire rope:
Smooth steel wire → manganese series or zinc-manganese series phosphating → twisting → winding.
The above is the production process of phosphating coated steel wire rope and smooth steel wire rope. It can be seen that phosphating coated steel wire rope has one more phosphating process of manganese or zinc-manganese system than smooth steel wire rope.
The patent technology of phosphating coated wire rope is the most advanced technology in the field of wire rope in the world at present. The fatigue life of manganese phosphating coated steel wire rope is 3-4 times that of smooth steel wire rope with the same structure, which can be verified and compared through fatigue test. At present, there is no wire rope with the same structure whose fatigue life can exceed that of phosphating coated wire rope, so the patented technology of phosphating coated wire rope is the most advanced technology, at least in the field of wire rope in the world at present. Manganese phosphating film can improve the wear resistance and corrosion resistance of steel gear surface of automobile gearbox, and prolong the service life of steel wire rope by using this principle.
Phosphate coated wire rope has longer service life, lower unit use cost and higher cost performance, which represents the most advanced technology in the wire rope industry in the world, is the technical development direction of the wire rope industry, and is an upgraded product of smooth wire rope. All kinds of smooth wire ropes are being eliminated, and smooth wire ropes will disappear completely in history. For reference only.