Galvanized low carbon steel wire for armouring cable is made with low carbon steel pull a metal wire, iron wire according to use a different component is different also, it contains ingredients are: iron, cobalt, nickel, copper, carbon, zinc, and other elements. Will the hot metal blank rolling into 5 mm thick steel bar, and then put it into the drawing device inside draw different diameter line, and gradually reduce wire drawing dish aperture, cooling, annealing, coating and plating processing technology into all kinds of different specifications of the wire.
General use of mild steel wire is wire yield the biggest a variety, its diameter in 0.16 to 10 mm. It according to the surface state can be divided into smooth and galvanized two kinds, according to the condition of delivery and divided into cold drawn and annealing two. Cold drawn wire tensile strength, do generally use is % 26 le; 635 ~ 1000 mpa; Nail is % 26 le; 540 ~ 1320 mpa. Wire diameter is larger, the smaller the tensile strength. But building cold drawn wire tensile strength may not be less than 635 mpa. Annealed wire tensile strength in between 295 ~ 500 mpa. Choose materials, from keeping wire flexibility consideration, in order to prevent tensile strength on the high side, wire diameter small carbon content should be low; But the specifications larger nail with silk, it need carbon higher raw material, in order to avoid the wire in the punch when bending. General in the production the nail with plain steel wire, wire rod can use mechanical descaling (see wire rod mechanical descaling) and without coating processing (see lubrication carrier) can pull. In the production nail or galvanized steel wire, due to its surface quality requirement is higher, usually wire rod by mechanical descaling after a bit again by pickling and through the yellowing and with lime coating processing, to drawing. Because of low carbon steel wire, the plastic deformation resistance is small, so the drawing when a drawing process of total minus surface rate (see area reduction rate) can get bigger, maximum can reach 95%. Each time reducing surface rate is generally % 26 le; 35%. General use mild steel wire in galvanized before heat treatment or drawing process between the intermediate heat treatment, commonly used recrystallization annealing and widely used continuous furnace annealing and pit type furnace annealing in two ways. Continuous furnace annealing and continuous hot dip galvanizing or electric galvanized composition continuous production line; Pit type furnace annealing is used in the continuous operation of the production line,This is Galvanized low carbon steel wire for armouring cable
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