Steel wire (steel wire) is one of the four varieties of steel plates, tubes, types, and wires. It is a reprocessed product made of hot-rolled wire rods by cold drawing. According to the cross-sectional shape, it mainly includes circles, squares, rectangles, triangles, ellipses, flat, trapezoids, zigzags, etc.; according to size, there are extra fine <0.1 mm, thinner 0.1~0.5 mm, thinner 0.5~1.5 mm, medium 1.5~3.0 mm, thick 3.0~6.0 mm, thicker 6.0~8.0 mm, extra thick>8.0 mm; classified by strength, there are low strength <390 MPa, lower strength 390~785 MPa, ordinary strength 785~1225 MPa, higher strength 1225~1960 MPa, high strength 1960~3135 MPa, extra high strength>3135 MPa; classified according to usage: ordinary quality steel wire including welding rod, nail making, wire making, packaging and printing industry Steel wire, steel wire for cold heading for cold heading rivets, screws, etc., electrical steel includes special steel wire for overhead communication lines, steel core aluminum strands, etc., steel wire for textile industry includes coarse comb, heald 013, card clothing and needles Steel wire, rope making wire is specially used to produce steel wire rope and spokes, spring steel wire includes spring and spring washer, piano and tire, cord and transportation tape steel wire, structural steel wire refers to watch industry, ball, automatic machine free cutting steel wire, stainless steel wire Including stainless steel wire and surgical implant wire for the above-mentioned purposes, resistance alloy wire is used for heater elements and resistance elements, and tool wire includes steel wire and shoe wire.
The main processes of steel wire production include raw material selection, removal of scale, drying, coating treatment, heat treatment, wire drawing, plating treatment, etc.
For raw material selection, see steel wire raw materials.
The removal of scale refers to the removal of scale on the surface of the wire rod or intermediate wire blank. The purpose is to prevent the scale from damaging the surface of the mold and steel wire during drawing, to prepare good surface conditions for subsequent coating or plating treatment, and to reduce friction during drawing Reduce drawing force. There are two types of methods for removing iron scale: chemical method and mechanical method. See chemical descaling of wire rod and mechanical descaling of wire rod.
