The consequences of sudden breakage of the galvanized steel wire rope range from destruction of property to personal injury. The extended service life of galvanized steel wire rope means increased safety, reliability and economy. Phosphating is a good treatment technology to increase the life of galvanized steel wire rope, that is, a layer of phosphating film is formed on the surface of galvanized steel wire rope. The friction factor promotes sliding, delays the occurrence of fretting damage on the surface of the steel wire, and inhibits the initiation of fatigue micro-cracks, thereby greatly extending the service life of the galvanized steel wire rope.
At present, phosphating treatment is widely used in friction fields such as automobile, light industry, chemical industry, electrical appliance, national defense and so on.
According to the composition of phosphating solution, metal phosphating can be divided into alkali metal phosphating, iron phosphating, zinc phosphating, manganese phosphating, zinc calcium phosphating, zinc manganese phosphating and organic phosphating. The main function of the phosphating film of the rope making steel wire for phosphating galvanized steel wire rope is to improve the wear resistance and anti-corrosion ability of the steel wire surface, increase the storage capacity of the grease on the steel wire surface and reduce the friction factor together with the applied grease. Therefore, manganese-based phosphating is preferred, followed by zinc-manganese-based phosphating. At the same time, the phosphating speed is required to be fast, so as to have a sufficient output scale in the production of thin-diameter ropes and wires. In addition, high-temperature phosphating and high-current electrolytic phosphating per unit area can be used to improve the phosphating speed. Shorten the reaction time.
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