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Copper rod material and machining method of copper alloy rod material

A processing method and copper alloy technology, which is applied in the field of rod processing, can solve the problems that the extruded copper rod section cannot be used normally, the unfavorable preparation of ultra-pure materials, and the high temperature of the copper rod, so that the operation process is easy to master and the phenomenon of wire breakage is reduced , the effect of reducing pollution

Active Publication Date: 2019-12-03
SHANGHAI ELECTRIC CABLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The short section of copper rod after preheating contacts with air to form black rod, the extruded copper rod section prepared by black rod cannot be used normally, and there is a certain pollution to the mold cavity, which is not conducive to the preparation of some ultra-pure materials
The temperature of the extruded copper rod is high, and there will be more serious surface oxidation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] In the present embodiment, the up-leading copper rod is selected as the rod to be processed, and the diameter of the up-leading copper rod is 16.0 mm. Select the mold used for cold-press welding copper rods with a diameter of 16.0mm, insert the two up-leading copper rods into the die holes of the two molds, adjust the transverse gap between the molds, the gap width is 6-10mm, and start the cold Pressure welding machine, so that the gap of the vertical seam in the middle of the mold is completely closed. After confirming that the cold-press welding is firm, open the mold, remove the waste edge, and anneal the welding spot of the cold-press welding of the rod to be processed, annealing current 30-50A, and complete the welding. The welded up-lead copper rods are cut and scraped after passing through the wire-releasing device and the straightening device. The cutting depth of the rods to be processed is 0.05mm. The production system is synchronously linked. The cut up lea...

Embodiment 2

[0059] The high-purity copper-silver alloy rod material cast horizontally is selected as the rod material to be processed. The mass percentage of silver in the high-purity copper-silver alloy rod material is less than or equal to 1%, and the sum of the mass percentage of copper and the mass percentage of silver Greater than or equal to 99.95%.

[0060] Select the mold used for cold-press welding rods with a diameter of 8.0mm, insert two high-purity copper-silver alloy rods into the die holes of the two molds respectively, and adjust the transverse gap between the molds, the gap width is 2-4mm, Start the cold press welding machine to completely close the gap of the vertical seam in the middle of the mold. After confirming that the cold-press welding is firm, open the mold, remove the waste edge, and anneal the welding spot of the cold-press welding of the rod to be processed, annealing current 10-15A, and complete the welding.

[0061] After the welded copper-silver alloy rod ...

Embodiment 3

[0064] The copper-magnesium alloy rod material prepared by the above-mentioned method is selected as the rod material to be processed, the diameter of the copper-magnesium alloy rod material is 8 mm, the mass percentage of magnesium in the copper-magnesium alloy rod material is less than or equal to 0.04%, the mass percentage of copper and the mass percentage of magnesium The sum of the percentages is greater than or equal to 99.95%.

[0065] Select the mold used for cold-press welding rods with a diameter of 8mm, insert two copper-magnesium alloy rods into the die holes of the two molds, adjust the transverse gap between the molds, the gap width is 2-8mm, and start the cold press Welding machine, so that the gap of the vertical seam in the middle of the mold is completely closed. After confirming that the cold-press welding is firm, open the mold, remove the waste edge, and anneal the welding spot of the cold-press welding of the rod to be processed, annealing current 10-15A,...

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Abstract

The invention provides a copper rod material and a machining method of a copper alloy rod material. The machining method comprises the following steps that firstly, a to-be-machined rod material is connected through cold pressing welding; 2, the outer circumferential face of the connected to-be-machined rod material is cut and scraped; 3, the to-be-machined rod material is conveyed into a heatingcavity, the heating cavity is filled with an inert protective gas, and a heating device installed in the heating cavity heats the to-be-machined rod material; and 4, the to-be-machined rod material isextruded through an extruding machine and then is outputted. The method is simple in operation process and high in efficiency, and the prepared copper rod material and the prepared copper alloy rod material are excellent in performance.

Description

technical field [0001] The invention relates to the technical field of rod processing, in particular to a method for processing copper rods and copper alloy rods. Background technique [0002] Copper and its alloy materials have a series of good comprehensive properties: excellent electrical and thermal conductivity, good corrosion resistance, sufficient mechanical properties, and excellent processing plasticity. Copper and its alloys play a pivotal role in the power industry, electrical industry and electronics. The development and development of high-performance copper and its alloy materials has become one of the hot spots in copper alloy research. At present, in the processing of copper alloys, the copper alloys prepared only by the traditional solid solution and aging heat treatment methods are not enough to meet the requirements of high performance; the composite material method, rapid solidification method and other methods are relatively complicated. , the producti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/04B21C29/00
CPCB21C29/003B21C37/04
Inventor 胡渊蔚张永甲蔡西川李冬俊谢宗岳
Owner SHANGHAI ELECTRIC CABLE RES INST
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