Phosphating coated steel wire rope produced by patented technology gives priority to manganese series or zinc-manganese series phosphating. Compared with the production process of smooth steel wire rope, only the last wear-resistant phosphating process is added, and the wear resistance and corrosion resistance of steel wire rope are greatly improved. Phosphating steel wire rope is directly twisted. At present, the fatigue test data show that the fatigue life of phosphating coated steel wire rope is about 3-4 times that of smooth steel wire rope with the same structure (under comparable conditions in laboratory), and it is still possible to improve it greatly with the research of wear-resistant phosphating formula. If the company has a fatigue testing machine, it is recommended to do a comparative verification test of fatigue life of phosphating coated steel wire rope and smooth steel wire rope, which is the most reliable data.
The unit use cost of steel wire rope can be calculated by dividing the cost of buying steel wire rope by the number of days of use, that is, calculating yuan/day. Or the purchase cost of elevator wire rope divided by the number of uses. You can also divide the cost of buying wire rope by the tonnage of the goods transported. Based on this data, we can compare which wire rope is used for more accounting. Cheap steel wire rope does not mean low use cost, and expensive steel wire rope does not mean high use cost.
The service life of wire rope is directly proportional to its fatigue life. According to the approximate price of wire rope market, the price of manganese phosphating coated wire rope is higher than that of smooth wire rope, and the extension of service life is much higher than the price increase. Therefore, the daily average use cost of phosphating coated steel wire rope is only 30-45% of that of smooth steel wire rope, which is lower in use cost and higher in cost performance.
Therefore, phosphating coated elevator wire rope has long service life and low cost, so it is inevitable to completely eliminate smooth elevator wire rope, which is the general trend and development trend of wire rope manufacturing technology. Personal opinion, for reference only.