Phosphating coated steel wire rope is a patented technology. Phosphating film is non-conductive, which can inhibit the formation of micro-batteries on the surface of steel wire, thus playing an anti-corrosion role. Generally, the phosphating film is larger than 10g/m2, and its corrosion resistance is good, which is equivalent to that of a thin zinc layer. Another feature of phosphating film is wear resistance, which prevents fretting wear of steel wire rope, thus greatly prolonging its service life.
The corrosion resistance of these two kinds of wire ropes can be measured and compared by salt spray test, and phosphating coated wire ropes can be used instead of thin galvanized wire ropes.
Commonly used steel wire ropes include phosphating coated steel wire rope, galvanized steel wire rope, stainless steel wire rope or plastic coated steel wire rope, which are used in atmospheric environment. Manganese phosphating coated steel wire rope produced by patented technology has the longest service life, and the fatigue life of phosphating coated steel wire rope is 3-4 times that of smooth steel wire rope. In severe corrosive environment, hot dip galvanized-phosphating double-coated steel wire rope with outstanding anticorrosion ability is preferred, and smooth steel wire rope is being eliminated for reference only.