Steel wire

Steel wire is one of the four major varieties of steel: plate, tube, section, and wire. It is a reprocessed product made from hot-rolled wire rods and cold drawn. Classified by cross-sectional shape, there are mainly circles, squares, moments, triangles, ellipses, flattened, trapezoids, Z-shaped, etc; According to size classification, there are ultra-fine<0.1mm, relatively fine 0.1-0.5mm, fine 0.5-1.5mm, medium 1.5-3.0mm, coarse 3.0-6.0mm, relatively coarse 6.0-8.0mm, and ultra-coarse>8.0mm; According to strength classification, there are low strength<390 megapascals, lower strength 390-785 megapascals, ordinary strength 785-1225 megapascals, higher strength 1225-1960 megapascals, high strength 1960-3135 megapascals, and ultra-high strength>3135 megapascals; Classified by purpose: ordinary quality steel wire includes welding rod, nail making, mesh making, packaging and printing industry steel wire, cold forging steel wire is used for cold heading rivets, screws, etc., electrical steel includes special steel wire for producing overhead communication lines, steel core aluminum stranded wire, etc., textile industry steel wire includes coarse comb, comprehensive 013, needle cloth and needle steel wire, rope making steel wire is used for producing steel wire rope and spokes, spring steel wire includes steel wire for springs and spring washers, piano and tire, curtain cloth and transportation tape steel wire, structural steel wire refers to steel wire for watch industry, ball, automatic machine easy cutting steel wire, stainless steel wire includes stainless steel wire and surgical implant steel wire for the above purposes, resistance alloy wire is used for heating elements. Used for resistance components, tool steel wire includes reinforcing steel wire and shoe making steel wire.

Galvanized iron wire

Iron wire production has developed earlier due to its simple process and wide application. Iron wire or steel wire (corresponding to "wire mesh enterprises") is a cold processed product of steel wire, and the materials used are generally high-quality carbon steel or stainless steel. Usually, it is necessary to go through several procedures such as shell peeling, acid washing, water washing, saponification, drying, drawing, annealing, cooling, acid washing, water washing, galvanizing, packaging, etc. to produce iron ingots (steel ingots) for making iron wire (steel wire). The production of iron wire and steel wire generally adopts wire drawing process and galvanizing treatment. In 1976, Guangzhou Galvanized Iron Wire Factory was the first in China to successfully apply new technologies such as electrolytic pickling, high-pressure washing, and card electric drying to test the continuous production of wire drawing lines. This changed the wire drawing process from intermittent production to continuous production, weakened labor intensity, and reduced metal consumption. At that time, domestic wire factories were already able to produce products such as steel wire ropes, spoke low bar steel wires, umbrella steel wires, spring steel wires, and bicycle saddle spring steel wires. In the 1980s, hot-dip low-carbon steel wire, fan mesh cover steel wire, carbon structural steel wire, and bed surface steel wire were also introduced for nailing. After annealing, the elongation of the iron wire is increased, making the product more flexible and expanding the applicability of the iron wire. It is widely used in wire mesh production through electroplating, hot-dip galvanizing, copper plating, and other methods. The binding of building steel bars and the weaving of the iron wire mesh can be done by first weaving and then plating, and first plating and then weaving. The processed iron wire mesh or steel wire mesh has good anti-corrosion and antioxidant properties, and can be used for reinforcement, protection, and insulation in industries such as construction, petroleum, chemical, aquaculture, landscaping protection, and food processing.

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