Copper wire drawing process

Abstract

The invention relates to a copper wire drawing process. The process comprises the following steps of S1, pretreating a copper wire surface; S02, feeding a copper wire to be machined into a wire drawing machine, and in the wire drawing process, enabling the copper wire to be soaked in wire drawing liquid; S03, feeding the drawn copper wire into an annealing furnace to be annealed, firstly, performing low-temperature annealing, enabling the annealing temperature to be controlled at 260 to 300 DEG C, performing recrystallization annealing, and enabling the annealing temperature to be controlled at 550 to 650 DEG C; S04, through soapy water, cooling the annealed copper wire, and enabling the compounding concentration of the soapy water to be at 0.5 to 1.0%; and S05, inspecting. The process hasthe effects of removing copper wire inner stress to reduce cracking and wire breaking.

Description

technical field [0001] The invention relates to the technical field of copper wire processing, in particular to a copper wire drawing process. Background technique [0002] Copper processing is an important part of my country's non-ferrous metal industry. The stretching of metal wire refers to a pressure processing method in which the wire blank is plastically deformed through the wire drawing die hole under the action of power winding and pulling, so that the section is reduced and the length is increased. , The wire drawing machine is to use the extensibility of the metal wire, and use the compression of the wire drawing die to make the diameter smaller, so as to obtain the required wire diameter. [0003] The existing Chinese patent with authorized publication number CN109637748A provides a cable copper wire preparation process, including: finely drawing copper wires, combining copper wires, annealing, cooling, degreasing, and drying. During annealing, a disposable Comple...

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Problems solved by technology

[0003] The existing Chinese patent with authorized publication number CN109637748A provides a cable copper wire preparation process, including: finely drawing copper wires, combining copper wires, annealing, cooling, degreasing, and drying. During annealing, a disposable Complete annealing, in this way, the temperature rises faster, it is difficult to eliminate the internal stress of the copper wire, which leads to the cracking and disconnection of the copper wire, which greatly reduces the product quality, so it needs to be improved

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