Technical method for improving electric conductivity of copper or copper alloy

A process method and copper alloy technology, applied in the direction of metal/alloy conductors, conductors, circuits, etc., can solve the problems of low conductivity, low production efficiency, and failure to meet production needs and requirements, and achieve less material, weight reduction, and ease of use. The effect of mass production

Inactive Publication Date: 2018-06-12
SHAANXI PROVINCE MILITARY GRP SHAANXI COPPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conductivity of copper or copper alloy produced by the traditional production process is 56-58MS / m, the conductivity is low, and the production efficiency is generally low, which cannot meet the existing production needs and requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The invention provides a process for improving the electrical conductivity of copper or copper alloy, comprising:

[0022] 1), take the cathode copper plate raw material, and record;

[0023] 2), melt the raw materials weighed, and complete the melting of the raw materials;

[0024] The raw material is roasted with charcoal, the roasting voltage is 360V, and the current is 1.0KA.

[0025] 3), refining the melted raw material, and adding metal yttrium to the raw material according to the mass ratio of metal yttrium to raw material is 0.006%;

[0026] When the temperature of the furnace reaches 1100°C, cut off the power, preheat the furnace head and graphite funnel, and preheat the furnace head 1 to 2 times for 2 to 3 minutes each time. Put it into the graphite yttrium adding device, remove the charcoal layer on the liquid surface, add the metal yttrium to the bottom of the molten metal, and stir gently in circles to completely melt the metal yttrium. When adding metal ...

Embodiment 2

[0032] The invention provides a process for improving the electrical conductivity of copper or copper alloy, comprising:

[0033] 1), take copper-chromium alloy raw material, and record;

[0034] 2), melt the raw materials weighed, and complete the melting of the raw materials;

[0035] The raw material is roasted with charcoal, the roasting voltage is 390V, and the current is 0.8KA.

[0036] 3), refining the melted raw material, and adding metal yttrium to the raw material according to the mass ratio of metal yttrium to raw material is 0.008%;

[0037] When the temperature of the furnace reaches 1360°C, cut off the power, preheat the furnace head and graphite funnel, and preheat the furnace head 1 to 2 times for 2 to 3 minutes each time. Put it into the graphite yttrium adding device, remove the charcoal layer on the liquid surface, add the metal yttrium to the bottom of the molten metal, and stir gently in circles to completely melt the metal yttrium. When adding metal ytt...

Embodiment 3

[0043] The invention provides a process for improving the electrical conductivity of copper or copper alloy, comprising:

[0044] 1), take copper plate raw material, and record;

[0045] 2), melt the raw materials weighed, and complete the melting of the raw materials;

[0046] The raw material is roasted with charcoal, the roasting voltage is 380V, and the current is 0.9KA.

[0047] 3), refining the melted raw material, and adding metal yttrium to the raw material according to the mass ratio of metal yttrium to raw material is 0.009%;

[0048] When the temperature of the furnace reaches 1200°C, turn off the power, preheat the furnace head and graphite funnel, and preheat the furnace head 1 to 2 times for 2 to 3 minutes each time. Put it into the graphite yttrium adding device, remove the charcoal layer on the liquid surface, add the metal yttrium to the bottom of the molten metal, and stir gently in circles to completely melt the metal yttrium. When adding metal yttrium and...

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PUM

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Abstract

The invention discloses a technical method for improving the electric conductivity of copper or copper alloy. The technical method comprises the following steps: 1, weighing the raw material of copperor copper alloy, and carrying out recording; 2, melting the weighted raw material, and finishing the melting of the raw material; 3, refining the molten raw material, and adding metallic yttrium intothe raw material; and 4, carrying out drawing casting on the metal solution to which the metallic yttrium is added, and finishing the processing of the raw material. By adding the metallic yttrium tothe copper or copper alloy, refining crystal grains and regularly arranging the crystal grains, the crystal grains in copper ingots are more uniformly arranged, and the blockage of free electrons bycopper atomic nuclei is weakened, so that the purpose of improving the electric conductivity is achieved, the use range of the copper and the copper alloy is enlarged, and the suitability of the copper and the copper alloy is wider.

Description

technical field [0001] The invention belongs to the technical field of metal smelting, and in particular relates to a process for improving the electrical conductivity of copper and copper alloys. Background technique [0002] With the rapid development of heavy industry, metal smelting technology is getting higher and higher, especially conductive metal, the application range is more and more extensive, for example, copper and copper alloys with high conductivity are widely used in military industry, aerospace, shipbuilding, High-speed rail, subway, electric vehicle, communication equipment, electric power and other fields. Therefore, higher requirements are put forward for the conductivity of copper and copper alloys, and further requirements are placed on the processing of materials. [0003] Copper and copper alloy production is a relatively mature production process, mainly using cathode copper or waste miscellaneous copper as raw material, heating to 1200°C in an indu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C1/06C22C9/00H01B1/02
CPCC22C1/02C22C1/06C22C9/00H01B1/026
Inventor 王涛葛丽珍张鹏君
Owner SHAANXI PROVINCE MILITARY GRP SHAANXI COPPER
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