At present, only the manganese phosphating coated elevator wire rope can reach more than 2 million fatigue lives, while the ordinary smooth elevator wire rope only has 6, fatigue lives. Manganese phosphating coated steel wire rope is the most advanced technology in the field of steel wire rope manufacturing in the world. Fatigue tests have proved that the fatigue life of manganese phosphating coated steel wire rope is the longest among steel wire ropes of the same structure. Because of its long service life, the daily average service cost of manganese phosphating coated steel wire rope is only about one third of that of smooth steel wire rope, which is an upgraded product of smooth steel wire rope. The type and weight of phosphating film are the key technical indexes of manganese phosphating coated steel wire rope, and the film weight must conform to the agreed contract with the manufacturer. The method to distinguish the authenticity of manganese phosphating coated steel wire rope is to test the type and weight of phosphating film. As far as I know, your rope has not produced manganese phosphating coated wire rope at present, and it is unknown whether it will be produced in the future. Phosphating coated steel wire rope is an invention patent in China, which can be found on the website of the State Patent Office. The patent right of phosphating coated steel wire rope belongs to natural persons. That is to say, if an enterprise produces phosphating coated steel wire rope, it must obtain a patent license and pay a fee before it can be legally produced, including your rope, which also needs a patent license and pay a patent fee before it can be legally produced, otherwise it may be suspected of patent infringement. Phosphating includes many formulas, among which manganese phosphating has the strongest wear resistance, manganese phosphating coated steel wire rope can greatly improve the fatigue life of steel wire rope, and manganese phosphating coated steel wire rope has a longer service life and lower unit use cost, which is an upgraded product of all kinds of smooth steel wire ropes. When purchasing manganese phosphating coated steel wire rope, the main technical index is the film weight of manganese phosphating film, which is mostly 15-3g/m2 at present. If it is a mine steel wire rope, it can be required to have a larger film weight. If the film weight of phosphating film is less than 3g/m2, it is not a phosphating coated steel wire rope. The instruments and methods for testing the film weight of phosphating film are very simple, which can be determined by ordinary chemical laboratories. The film weight of phosphating film is the most important technical index of manganese phosphating coated steel wire rope. More than 15g/m2 of manganese phosphating film can ensure the wear resistance and corrosion resistance of manganese phosphating coated steel wire rope. Some enterprises that have purchased patent licenses have produced manganese phosphating coated steel wire rope with a film weight of 2-3g/m2, with excellent fatigue resistance.
share split the manganese phosphating coated steel wire rope into a single steel wire, cut off the length of about 5mm, carefully clean the steel wire with organic solvent, and thoroughly clean the grease on the surface of the steel wire. Please note that the organic solvent is flammable and explosive, and the operation must be standardized to prevent the explosion accident of the organic solvent. Then the film weight of phosphating film can be determined according to the national standard, GB/T9792-23 Gravimetric method for determining the film quality per unit area of conversion film on metal materials. It is necessary to prepare the corresponding chemicals and measure and reuse the electronic balance, and the measurement accuracy should be at least .1g..
The service life of manganese phosphating coated steel wire rope is longer than that of smooth steel wire rope, and the unit use cost is lower. It is an upgraded product of all kinds of smooth steel wire rope.