The consequences of a galvanized wire rope's sudden breaking can range from physical damage to human injury. The extension of the service life of galvanized wire rope means the improvement of safety, reliability and economy. Phosphating is a good treatment technology to increase the life of galvanized wire rope, that is, a layer of phosphating film is formed on the surface of galvanized wire rope. The porous structure of the phosphating film can increase the storage capacity of grease on the surface of the rope making wire and reduce The friction factor promotes sliding, delays the occurrence of fretting damage on the surface of the steel wire, inhibits the initiation of fatigue microcracks, and greatly extends the service life of the galvanized wire rope.

    At present, phosphating treatment is widely used in friction fields such as automobiles, light industry, chemicals, electrical appliances, and national defense.
    Metal phosphating can be divided into alkali metal phosphating, iron-based phosphating, zinc-based phosphating, manganese-based phosphating, zinc-calcium phosphating, zinc-manganese phosphating, and organic phosphating according to the composition of the phosphating solution. Phosphating galvanized wire rope The main function of the phosphating film of the rope-making steel wire is to improve the wear resistance and corrosion resistance of the steel wire surface, increase the storage capacity of the grease on the surface of the steel wire, and work together with the coated grease to reduce the friction factor Therefore, manganese-based phosphating is preferred, followed by zinc-manganese-based phosphating. At the same time, the phosphating speed is required to be fast, so as to have sufficient production scale in the production of small diameter rope steel wires. In addition, high-temperature phosphating and high-current electrolytic phosphating per unit area can be used to increase the phosphating speed. Shorten the reaction time.
    Some materials of the steel wire will be dissolved during the phosphating process. The weight of the phosphating film is 3-15g/m2, and the diameter of the steel wire after phosphating is almost unchanged; when the weight of the phosphating film exceeds 20g/m2, the diameter of the steel wire increases. It is also very limited, and the mechanical properties of the steel wire have no obvious changes before and after phosphating. The film weight of the phosphating film can be tested according to the corresponding standard gravimetric method for measuring the film mass per unit area of ​​the conversion film on the metal material. For the twisted phosphate galvanized steel wire rope product, the weight of the phosphate coating film of the steel wire rope can be inspected by splitting the strands, and the grease coated on the surface of the galvanized wire rope can be thoroughly cleaned with an organic solvent. After air drying, the phosphorus can be determined according to the above gravimetric method. The weight of the film is sufficient.
After the galvanized wire rope is phosphated, phosphate wastewater will generally be produced. Therefore, the original wastewater treatment system must be expanded at the same time as the phosphate galvanized wire rope production line is installed. After treatment, part of the wastewater can be reused; part of the treated wastewater that meets the relevant requirements of the standard can be directly discharged.