The large roll of galvanized silk should be coated with oil, the fiber core is dipped in oil, and the oil is required to protect the fiber core from decay and rust, the wire moistens the fiber, and lubricates the wire rope from the inside. The surface is coated with oil so that the surface of all the wires in the rope strand is evenly coated with a layer of anti-rust lubricating grease, among which the rope used in the mine with large friction lifting and mineral water should be coated with black oil grease with increased wear and strong water resistance. Other uses are coated with red oil grease with strong film and good rust resistance, and require it to have a thin oil layer, which is easy to keep clean during operation.
Galvanized wire coating is galvanized, aluminum plated, coated with nylon or plastic, etc. Galvanized steel is divided into thin coating after steel wire plating and thick coating after steel wire drawing, the mechanical properties of thick coating are lower than that of smooth steel wire rope, and should be used in serious corrosion environment. Aluminized wire rope It is more resistant to corrosion, wear and heat than galvanized wire rope, using the first plating and then drawing method of production. The wire rope coated with nylon or plastic is divided into two kinds: the coated rope and the combined rope after the coated strand.
Through the maintenance of galvanized wire, it can not only greatly extend its service life, but also improve its efficiency in daily use. Because the labeled electrode potential of zinc is -0.762v, which is negative than iron, zinc becomes the anode when it is corroded by the medium to form a galvanic cell. It itself is dissolved to protect the steel matrix. The duration of the protective effect of the galvanized layer of galvanized wire has a great relationship with the thickness.
Post time: 21-02-24