A method of manufacturing an elevator wire rope
A production method and technology of steel wire rope, which are applied in the directions of textile cable, textile and paper making, etc., can solve the problems of large elongation of steel wire rope, low strength grade of steel wire, and difficult control.
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[0018] A method for manufacturing elevator steel wire ropes, using sisal hemp and hot-rolled wire rods as raw materials, using 70# high-quality carbon steel for the center and inner layer steel wires, and 60# high-quality carbon steel for the outer layer wires, and drawing the wire rods for the first time with a wire drawing machine Then the steel wire drawn for the first time is heated and quenched, and then surface treated to obtain a sorbite quenched steel wire, and the quenched steel wire obtained by the above heat treatment is drawn. The compression rate is 85%-88%, and the compression rate of the center and inner layer wires is 87%-92%. The obtained outer layer steel wire, inner layer steel wire, and center steel wire are twisted into steel wire strands, and the twist direction is opposite to that of the steel wire rope. , during the twisting process, use a mold with a diameter of 97%-98% to shape the steel wire. At the mold inlet, the steel wire is sprayed with special g...
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