Manufacture of copper wire
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Hot Deformation
Copper bars are rolled primarily in a hot state. Hot rolling is difficult because of the intense formation of oxides on the surface of the metal, and therefore the rolling rolls have to be coated with special compounds. Since the degree of deformation of copper during rolling should not exceed 30%, then, when obtaining the required range of metals, multicell rolling mills are used.
Production
Copper wire round electrotechnical is intended for manufacturing of wires, cables, cords, and also other electrotechnical purposes. Copper wires of MM and MT grades from 1.15 to 4.50 mm in diameter are manufactured according to TU 16−705.492−2005 from wire rod. The technological process of production includes the following basic operations:
- Return of copper wire rod from riots to a drawing machine.
- Drawing wire rod on a drawing machine without sliding.
- Continuous recrystallization annealing at the attachment of resistive annealing.
- Receiving the wire on a spool or a coiler.
- Tying, weighing and packing of bays.
- Warehousing and shipment of finished products.
Delivery, price
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