The electric hoist is a small crane, and the electric hoist is also inseparable from the wire rope. Please refer to the national standard for safe use and maintenance of wire ropes in GB/T29086-2012 for maintenance, and the maintenance and maintenance of crane wire ropes in accordance with GB/T5972-2009. Installation, inspection and scrapping shall comply with national standards for inspection and scrapping. When scrapping standards are met, new ropes must be replaced in a timely manner. It is recommended to use manganese phosphating coated steel wire rope, whose service life is far longer than that of smooth steel wire rope.
Smooth steel wire rope:
Smooth steel wire → twisted → combined rope
Phosphated coated steel wire rope:
Smooth steel wire → Manganese or zinc-manganese phosphating → Twisting → Roping
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 is better than smooth steel wire rope. There is an additional manganese or zinc-manganese phosphating coating treatment process.
The patented technology of phosphate-coated steel wire rope is the most advanced technology in the field of steel wire ropes in the world. The fatigue life of manganese-based phosphate-coated steel wire rope is 3-4 times that of smooth steel wire ropes with the same structure. It can be verified and compared through fatigue tests. . At present, there is no steel wire rope with the same structure whose fatigue life can exceed the fatigue life of phosphate-coated steel wire rope. Therefore, the patented technology of phosphate-coated steel wire rope is the most advanced technology, at least currently the most advanced technology in the world's steel wire rope field. Manganese phosphate coating can improve the wear resistance and corrosion resistance of the steel gear surface of automobile transmissions. This principle is also used to extend the service life of steel wire ropes.
Phosphated coated steel wire rope has a longer service life, lower unit use cost and higher cost performance. It is an upgraded product of smooth steel wire rope. All types of smooth steel wire rope are being eliminated. For reference only.