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Processing method of copper rod and copper alloy rod

A processing method and copper alloy technology, applied in the field of rod material processing, can solve the problems that the extruded copper rod segment cannot be used normally, the preparation of ultra-pure materials is unfavorable, and the temperature of the copper rod is high, so that the operation process is easy to master and the phenomenon of wire breakage is reduced. , the effect of improving the bonding strength of the interface

Active Publication Date: 2021-08-27
SHANGHAI ELECTRIC CABLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preheated short section of copper rod will form a black rod after contacting with the air. The extruded copper rod section prepared by the 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 pressure welding is firm, open the mold, remove the waste edge, and anneal the welding point of the cold pressure welding of the rod to be processed, the annealing current is 30-50A, and the welding is completed. 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 linke...

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 perform annealing treatment on the welding point of the cold-press welding of the rod to be processed, with an annealing current of 10-15A, and complete the welding.

[0061] After...

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 perform annealing treatment on the welding point of the cold-press welding of the rod to be processed, ...

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Abstract

The invention provides a processing method for copper rods and copper alloy rods, comprising the following steps: step 1: using cold pressure welding to connect the rods to be processed; step 2: connecting the outer circumference of the rods to be processed cutting and scraping treatment on the surface; step 3: transport the rod to be processed into the heating chamber, which is filled with inert protective gas, and the heating device installed in the heating chamber The processed rod is heated; step 4: the rod to be processed is extruded by an extruder and then output. The method of the invention has simple operation process and high efficiency, and the prepared copper rod material and copper alloy rod material have excellent properties.

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. Research 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 process of copper alloy processing, the copper alloy prepared only by the traditional solid solution and aging heat treatment method is not enough to meet the high performance requirements; the composite material method, rapid solidification method and other methods are more complicated. , the production cost is h...

Claims

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Application Information

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Patent Type & Authority Patents(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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