Manganese phosphating coated elevator wire rope is a patented product. According to the national standard GB8903-2005, the elevator wire rope is directly twisted with phosphatized steel wire (note: the steel wire is not cold-drawn after phosphating). Manganese phosphating or zinc-manganese phosphating can improve the wear resistance and corrosion resistance of steel wire surface, and its fatigue life is 3-4 times that of smooth elevator wire rope with the same structure, which can be verified by fatigue test. Although the price is slightly higher, the unit use cost of manganese phosphating coated elevator wire rope is only 30-40% of that of smooth wire rope, which has incomparable cost performance advantage, higher quality stability and longer maintenance period. The manufacturing technology of manganese phosphating coated steel wire rope is the most advanced technology in the field of steel wire rope in the world at present, because the fatigue life of manganese phosphating coated elevator steel wire rope is the longest in the same structure.
Smooth elevator wire rope is twisted with smooth steel wire, which is not wear-resistant, easy to rust and has a short service life, and will soon be completely eliminated.
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