Steel wire is one of the four major varieties of steel plate, tube, profile, and wire. It is a reprocessed product made of cold-drawn hot-rolled wire rod. Classified by section shape, mainly round, square, rectangular, triangular, elliptical, flat, trapezoidal, zigzag, etc .; classified by size, extra fine <0.1 mm, thinner 0.1 ~ 0.5 mm, fine 0.5 ~ 1.5 mm, medium 1.5 to 3.0 mm, 3.0 to 6.0 mm thick, 6.0 to 8.0 mm thick, extra thick> 8.0 mm; classified according to strength, low strength <390 MPa, lower strength 390 to 785 MPa, ordinary strength 785 to 1225 Mpa, higher strength 1225 ~ 1960 Mpa, high strength 1960 ~ 3135 Mpa, extra high strength> 3135 Mpa.
Classified according to use: ordinary quality steel wires include welding rods, nails, nets, packaging and printing industry wires, cold forging steel wires for cold heading rivets, screws, etc., electrical steel includes production of overhead communication wires, steel core aluminum strand Special steel wire for wire, etc. The steel wire for the textile industry includes card, heald 013, wire for card clothing and needles, rope for making steel wire and spokes, spring wire for spring and spring washer, piano and tire, cord and Steel wire for transportation tape, structural wire refers to the watch industry, ball, automatic cutting steel wire, stainless steel wire includes stainless steel wire and surgical implant wire for each of the above purposes, resistance alloy wire for heater elements, resistance element, tool wire Includes steel wire and shoe wire.
Process characteristics of stainless steel wire
The stress state of the metal wire drawing is the three-way main stress state of the two-way compressive stress and the one-way tensile stress. It is easier to reach the plastic deformation state than the main stress state where the three-way is compressive stress. The deformation state of drawing is a three-way main deformation state of two-way compression deformation and one-way tensile deformation. This state is not good for the plasticity of the metal material, and it is easier to generate and expose surface defects. The deformation of the wire during the drawing process is limited by its safety factor. The smaller the deformation of the pass is, the more the drawing is. Therefore, multi-pass continuous high-speed drawing is often used in the production of wire.