Surface-modified copper busbar and preparation method thereof

A surface modification, copper busbar technology, applied in the direction of surface coating devices, conductors, metal/alloy conductors, etc., can solve problems such as busbar heating, affecting power supply temperature and power supply safety, and copper busbar being susceptible to corrosion. , to achieve the effect of improving heat dissipation performance, improving electricity safety, and improving comprehensive electrical performance

Active Publication Date: 2021-10-08
YUNNAN NEW COPPERSMITH INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, with the continuous economic growth, the power consumption of enterprises and households is gradually increasing, and the power supply equipment is continuously expanded. The current carried by the busbar is continuously increased, which leads to serious heating of the busbar, and the copper busbar is easily corroded under overheating conditions. And affect the power supply temperature and power supply security

Method used

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  • Surface-modified copper busbar and preparation method thereof
  • Surface-modified copper busbar and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for preparing a surface-modified copper busbar is characterized in that it comprises the following steps:

[0030] S1) Prepare copper busbar; copper busbar is made of following raw materials according to mass fraction: Ag 0.5%, B 2.3%, Ti0.004%, Mn 0.009%, V 0.003%, Sr 0.008%, Co 0.02%, Ni 0.002%, Rare earth oxide 0.003%, the rest is Cu and unavoidable impurities.

[0031] a) Crushing the raw materials into powders with a particle size less than 60 mm, then batching and mixing uniformly according to the calculated raw material ratio, to obtain mixed powders for use;

[0032] b) Compact the mixed powder at 250MPa ~ 300MPa, put the compact into a vacuum furnace for melting, put argon into the vacuum furnace, control the temperature at 950°C ~ 1250°C, and melt for 4 hours to obtain a melt ;

[0033] c) semi-continuous casting of the obtained melt to obtain a semi-continuous billet of copper bus bar;

[0034] d) Homogenize the copper bus bar semi-continuous bill...

Embodiment 2

[0043] A method for preparing a surface-modified copper busbar is characterized in that it comprises the following steps:

[0044] S1) Prepare copper busbar; copper busbar is made of the following raw materials according to mass fraction: Ag 0.4, B 2%, Ti0.003%, Mn 0.007%, V 0.002%, Sr 0.002%, Co 0.002%, Ni 0.001%, rare earth Oxide 0.002%, the rest is Cu and unavoidable impurities.

[0045] a) Crushing the raw materials into powders with a particle size less than 60 mm, then batching and mixing uniformly according to the calculated raw material ratio, to obtain mixed powders for use;

[0046] b) Compact the mixed powder at 250MPa-300MPa, put the compact into a vacuum furnace for smelting, put argon into the vacuum furnace, control the temperature at 950°C-1250°C, and smelt for 3 hours to obtain a melt ;

[0047] c) semi-continuous casting of the obtained melt to obtain a semi-continuous billet of copper bus bar;

[0048] d) Homogenize the copper bus bar semi-continuous billet...

Embodiment 3

[0056] A method for preparing a surface-modified copper busbar is characterized in that it comprises the following steps:

[0057] S1) Prepare copper busbar; copper busbar is made of following raw materials according to mass fraction: Ag 1%, B 3.5%, Ti0.005%, Mn 0.012%, V 0.004%, Sr 0.03%, Co 0.05%, Ni 0.003%, Rare earth oxide 0.004%, the rest is Cu and unavoidable impurities.

[0058] a) Crushing the raw materials into powders with a particle size less than 60 mm, then batching and mixing uniformly according to the calculated raw material ratio, to obtain mixed powders for use;

[0059] b) Compact the mixed powder at 250MPa-300MPa, put the compact into a vacuum furnace for smelting, put argon into the vacuum furnace, control the temperature at 950°C-1250°C, and smelt for 5 hours to obtain a melt ;

[0060] c) semi-continuous casting of the obtained melt to obtain a semi-continuous billet of copper bus bar;

[0061] d) Homogenize the copper bus bar semi-continuous billet at...

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Abstract

The invention relates to the technical field of surface treatment of copper busbars, in particular to a surface-modified copper busbar and a preparation method thereof. The surface-modified copper busbar is provided with a lap joint surface and a non-lap joint surface, silver bottom layers are arranged on the lap joint surface and the non-lap joint surface of the copper busbar in an attached mode through a magnetron sputtering technology, the silver bottom layer of the non-lap joint surface is coated with a graphene thin film layer, modification treatment is carried out on the surface of the copper busbar, the thickness of each silver bottom layer is 8-12 microns, and the thickness of the graphene thin film layer is 80-100 microns. The invention further discloses a preparation method of the surface modified copper busbar. Aiming at the defects in the prior art, the invention provides the surface-modified copper busbar with reliable performance and the preparation method thereof, so that the conductivity and the heat dissipation performance of the existing copper busbar can be improved, and the copper busbar has relatively good comprehensive electrical performance.

Description

technical field [0001] The patent of the invention relates to the technical field of surface treatment of copper busbars, in particular to a surface-modified copper busbar and a preparation method thereof. Background technique [0002] Copper bus bar, also known as copper bar or copper bus bar, is a long conductor with a rectangular or chamfered (rounded) rectangular cross section, which plays the role of transmitting current and connecting electrical equipment in the circuit. In recent years, the country has increased the investment and development of basic industries and independent innovation, and the construction of large-scale projects such as large-scale hydropower stations, nuclear power stations, subways, airports, high-speed trains, and high-tech products has required a lot of conductive components for various electrical equipment used in project construction. The technical performance of copper busbars such as: conductivity, hardness, toughness, bending, and the sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C23C14/16C23C14/35B05D7/14B21C37/04H01B1/02
CPCC22C9/00B21C37/04C23C14/35C23C14/165B05D7/14H01B1/026
Inventor 梅政蔺泉
Owner YUNNAN NEW COPPERSMITH INDAL
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