Definition
The hot metal billet is rolled into steel bars with a thickness of 5mm, and then placed in the wire drawing device to be drawn into wires of different diameters. The hole diameter of the wire drawing coil is gradually reduced, and then processed through cooling, annealing, coating and plating, etc., to produce iron wires of various specifications. The specifications of iron wire used for binding, in accordance with industry standards, include the following types: 25# iron wire with a diameter of 0.50mm, 24# iron wire with a diameter of 0.55mm, 23# iron wire with a diameter of 0.60mm, and 22# iron wire with a diameter of 0.70mm, etc.
A combination of hardness and softness
The production of iron wire has developed relatively early due to its simple process and wide application. Iron wire or steel wire (the corresponding enterprise is "wire mesh enterprise") is a further cold working product of steel wire rods, and the materials used are generally high-quality carbon steel or stainless steel. Generally, several procedures such as coil shelling, pickling, water washing, saponification, drying, drawing, annealing, cooling, pickling, water washing, loading onto the galvanizing line, and packaging are required before iron ingots (steel ingots) for making iron wire (steel wire) can be produced.
The production of iron wire and steel wire generally adopts the wire drawing process and galvanizing treatment. In 1976, Guangzhou Galvanized Iron Wire Factory was the first in China to successfully test the continuous production of wire drawing lines by applying new technologies such as electrolytic pickling, high-pressure flushing and card electric drying. This transformed the wire drawing process from intermittent production to continuous production, reduced labor intensity and lowered metal consumption. At that time, domestic wire factories were already capable of manufacturing products such as steel wire ropes, low-strand spoke steel wires, umbrella frame steel wires, spring steel wires, and bicycle saddle spring steel wires. In the 1980s, hot-dip galvanized low-carbon steel wire for staples, steel wire for fan grilles, carbon structural steel wire, and bed surface steel wire were also successively introduced to the market. The annealing of iron wire increases its ductility. Making the product softer has expanded the application range of the iron wire. After electro-galvanizing and hot-dip galvanizing. Copper electroplating and other applications are widely used in wire mesh production. The binding of construction steel bars and the weaving of wire mesh include methods such as weaving first and then plating, or plating first and then weaving. After treatment, the wire mesh or steel wire mesh has excellent anti-corrosion and anti-oxidation properties and can be used for reinforcement, protection and insulation in industries such as construction, petroleum, chemical engineering, breeding, garden protection and food processing.
For instance, welded wire mesh, which is widely used in industries such as manufacturing, agriculture, animal husbandry, construction, transportation, and mining, is made by spot welding high-quality low-carbon iron wire. Then, it undergoes surface passivation and plasticization treatments such as cold plating (electroplating), hot-dip plating, and PVC coating. The resulting metal mesh features a smooth surface, uniform mesh size, and firm weld points, and is characterized by stability, good anti-corrosion and anti-erosion properties. Stainless steel welded wire mesh is made by spot welding high-quality stainless steel wires. For instance, machine guards, animal enclosures, flower and tree fences, window guards, passage fences, poultry cages, as well as food baskets, wastebaskets and decorative items for home and office use, etc., are more characterized by acid and alkali resistance, firm welding and good appearance.