Crane users need high-quality wire rope, which should be a wire rope with a long service life and a highly stable and reliable quality. For steel wire ropes used in atmospheric environments, the main reason for wire rope failure is fretting fatigue. At present, the world's wire rope field to take preventive measures against fretting fatigue is the phosphate coating steel wire rope produced by patented technology. The wire rope is phosphated or manganese-based. Zinc-manganese treatment improves the wear resistance and corrosion resistance of the steel wire surface, which is not easy to wear and corrosion, which greatly improves the fatigue life of the steel wire rope. The fatigue life is three times that of the smooth steel wire rope of the same structure (under comparable conditions in the laboratory), and can pass fatigue The test is to verify. If you have a fatigue testing machine, you can do a comparative test yourself. This test result is credible, and the service life of the wire rope is proportional to the fatigue life. Longer fatigue life will prolong the service life proportionally.