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High energy continuous electric pulse on line annealing method of copper wire and its device

An annealing device and electric pulse technology, applied in furnaces, heat treatment equipment, heat treatment furnaces, etc., can solve the problems of high power consumption and high production costs, achieve high production efficiency, reduce the degree of oxidation, and avoid the effect of aggravated oxidation

Inactive Publication Date: 2007-02-14
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the above-mentioned problems existing in the prior art, especially to overcome the defects of high power consumption and high production cost of direct resistance heating online annealing technology using AC or DC power supply, the present invention provides a high-energy continuous electric pulse online annealing method for copper wires And devices to save energy, improve production efficiency, reduce production costs, and avoid oxidation of copper wires during annealing

Method used

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  • High energy continuous electric pulse on line annealing method of copper wire and its device

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Effect test

Embodiment 1

[0032] Embodiment 1: The diameter of the copper wire after cold working is 0.60 mm, and it needs to be annealed on-line to a completely soft state.

[0033] refer to figure 1 The continuous copper wire 2 is driven by the unwinding and rewinding device to transmit at a speed of 100 mpm in the direction of the arrow, and the positive and negative poles of the high-energy continuous electric pulse power supply 1 are respectively made of conductive wheels 3 and 3' (conductive wheels) made of copper-coated nickel layer. The diameter is 160mm, and the distance between the energized section is 500mm) connected to the energized area section 2' of the moving continuous copper wire for annealing, and the continuously moving copper wire needs to pass through the guide wheels 9 and 9' before and after the energized area section 2' Importing and exporting, while using water-sealed cooling device 4 to cool the above-mentioned energized area section 2', the circulating cooling medium is wate...

Embodiment 2

[0035] Embodiment 2: The diameter of the copper wire after cold working is 0.60 mm, which needs to be annealed to a semi-hard state on-line.

[0036] refer to figure 1 , the continuous copper wire 2 is driven by the unwinding and rewinding device and transmitted at a speed of 100 mpm in the direction of the arrow, and the positive and negative poles of the high-energy continuous electric pulse power supply 1 are respectively made of conductive wheels 3 and 3' made of copper-coated nickel layer (conductive wheel The diameter is 160mm, and the distance between the energized section is 500mm) connected to the energized area section 2' of the moving copper continuous wire for online annealing, and the continuously moving copper wire needs to pass through the guide wheels 9 and 9 respectively before and after the energized area section 2' 'Introduce and export, and use the forced water cooling device 4 to cool the above-mentioned energized area section 2'. At this time, the pulse ...

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Abstract

A method for in-line annealing copper wire by high-energy continuous electric pulses includes delivering the copper wire toward the winder, applying the high-energy electric pulses to the moving copper wire by a high-energy electric pulse source and a pair of contacts, and forced cooling. Its advantages are low energy consumption and high productivity.

Description

technical field [0001] The invention relates to continuous wire annealing technology, in particular to a high-energy continuous electric pulse online annealing method and an online annealing device for copper wires. Background technique [0002] Copper wire is widely used in the national economy, especially in the fields of wire and cable, electrical contacts and other fields. Its specific application is based on the comprehensive characteristics of copper, such as good mechanical properties, physical properties, and good corrosion resistance, especially its excellent electrical conductivity, good heat dissipation, and much lower cost than precious metals, so it is widely used in electronic appliances. favored by industry. [0003] Especially for copper wires with a diameter or thickness not greater than 3mm, although the material has good plasticity during its processing, the intermediate process (such as when the cold deformation rate exceeds 90%) or the finished product ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/52C21D1/34
Inventor 唐国翌徐卓辉田绍权
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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