Currently, only manganese phosphating coated elevator wire ropes can achieve a fatigue life of more than 2 million times, while ordinary smooth elevator wire ropes can only achieve a fatigue life of 600,000 times. Manganese phosphate coated steel wire rope is the most advanced technology in the field of steel wire rope manufacturing in the world today. Fatigue tests have proven that the fatigue life of manganese phosphate coated steel wire rope is the longest among steel wire ropes of the same structure. Because manganese phosphate coated steel wire rope has With ultra-long service life, the average daily cost of manganese phosphating coated steel wire rope is only about one-third of that of smooth steel wire rope. It is an upgraded product of smooth steel wire rope. The type and weight of the phosphate coating are key technical indicators for manganese-based phosphating coated steel wire ropes. The coating weight must comply with the contract with the manufacturer. The way to identify the authenticity of manganese phosphate coated steel wire ropes is to test the type and weight of the phosphate coating. As far as I know, Guisheng currently does not produce manganese-based phosphating coated steel wire ropes, and it is unknown whether it will produce them in the future. Phosphate-coated steel wire rope is a Chinese invention patent. You can check it on the Patent Office website. The patent right of phosphate-coated steel wire rope belongs to natural persons. That is to say, if a company produces phosphate-coated steel wire rope, it must obtain a patent license before it can legally produce it. Including expensive ropes, they also need to obtain a patent license and pay patent fees before they can be legally produced, otherwise they may be suspected of patent infringement. Phosphating includes many kinds of formulas, among which manganese phosphating has the strongest wear resistance. Manganese phosphating coated steel wire rope can greatly improve the fatigue life of the steel wire rope. Manganese phosphating coated steel wire rope has a longer service life. Unit The cost of use is lower and it is an upgraded product for all types of smooth steel wire ropes. When purchasing manganese-based phosphate-coated steel wire ropes, the main technical indicator is the weight of the manganese-based phosphate coating, which is currently 15-30 grams/square meter. Those with a phosphate film weight less than 3 grams/square meter are not phosphate-coated steel wire ropes. The instruments and methods for testing the film weight of phosphating films are very simple and can be measured in ordinary chemical laboratories. The weight of the phosphate coating is the most important technical indicator of the manganese phosphate coated steel wire rope. A manganese phosphate coating of more than 15 grams/square meter can ensure the wear resistance and anti-corrosion capabilities of the manganese phosphate coated steel wire rope. Some purchase The patent-licensed company has produced manganese-based phosphate-coated steel wire ropes with a film weight of 20-30 grams/square meter and excellent fatigue resistance.
Split the manganese phosphate-coated steel wire rope into single steel wires, cut off about 500 mm in length, carefully clean the steel wires with organic solvents, and thoroughly clean the grease on the surface of the steel wires. Please pay attention to organic solvents It is flammable and explosive, and the operation must be standardized to prevent organic solvent deflagration accidents. Then just measure the film weight of the phosphating film according to the national standard, GB/T9792-2003 Determination of film mass per unit area of ??conversion coating on metal materials - gravimetric method. It is necessary to prepare the corresponding chemicals and an electronic balance for weight measurement, with a measurement accuracy of at least 0.001 grams.