The function of the hanging basket wire rope is to suspend and lift, and galvanized steel wire rope is more suitable.
China’s annual steel rope production of 1.8 million tons ranks first in the world. Phosphated steel wire rope is a revolutionary innovative technology in the world’s steel wire rope field. Its service life (fatigue life) has greatly increased. The historical mission of smooth steel wire rope has been completed. , entering the era of phosphate-coated steel wire ropes:
1. Phosphated-coated steel wire ropes (Chinese patent), after manganese or zinc-manganese phosphating treatment, the wear resistance and corrosion resistance of the steel wires have been fully improved, GB /T11376-1997 National Standard for Phosphate Conversion Coatings for Metals has a detailed introduction to the wear resistance and anti-rust effects of the phosphating film. Lubricating grease penetrates into the pores of the phosphating film and has an extremely excellent friction reducing effect, effectively inhibiting fretting wear. It is an upgraded product of smooth steel wire rope. It can be used instead of galvanized steel wire rope after first plating and then pulling out the thin zinc layer. At present, the fatigue life of phosphated rope is about 3 times that of smooth rope. The fatigue life can be compared through fatigue tests. It will be followed in the future. With in-depth research on wear-resistant phosphating liquid, the service life can also be greatly improved. The phosphating film is 3-60 g/m2. The steel wire is directly twisted into a wire rope without drawing processing after phosphating.
Note: Do not confuse zinc-based phosphating for drawing with manganese-based phosphating for rope making steel wire. This technology is suitable for the production of a variety of wire ropes, such as elevator wire ropes, important purpose wire ropes, mining wire ropes, anti-rotation wire ropes, wire ropes for oil production, wire ropes for pile drivers, etc. (Baidu library has free downloads of phosphate-coated steel wire rope papers).
2. Galvanized steel wire ropes include hot-dip galvanizing and electro-galvanizing. The direct-lift hot-dip galvanized steel wire has a thicker zinc layer. The thicker the zinc layer, the stronger the corrosion resistance and the longer it will last. Electroplated zinc is thinner. Since the phosphating coating has certain anti-corrosion properties, manganese-based phosphating-coated steel wire ropes can replace some types of galvanized steel wire ropes with thin zinc layers, such as high-temperature environments with atmospheric conditions but humid air.
3. Stainless steel wire rope, a steel wire rope twisted with stainless steel wire, such as 304 or 316 stainless steel, has higher corrosion resistance than hot-dip galvanized carbon steel wire rope, and is relatively expensive. The stainless steel wire is treated with manganese phosphorus Chemical coating treatment (phosphating stainless steel wire requires a special phosphating formula) can also greatly extend the service life.
4. Plastic-coated steel wire rope. Based on the steel wire rope, the outer layer of the steel rope or strand rope is coated with polyethylene or polypropylene.
5. Smooth steel wire ropes were produced in the United Kingdom in 1834. In China, Tianjin No. 1 Steel Wire Rope Factory began production in 1939 (it went bankrupt in 2005). As phosphate-coated steel wire ropes enter the market in large quantities, they will be phosphated. Chemically coated steel wire ropes will be completely eliminated.
6. Offshore steel wire ropes, relevant standards are in the process of formulation and approval
Manganese-based phosphating coated steel wire ropes are preferred for atmospheric environments, and hot-dip galvanizing-phosphating double coating is preferred for corrosive environments. Layer steel wire rope, the preferred offshore steel wire rope in seawater environment