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A kind of copper alloy and its preparation method and antenna material

A copper alloy and antenna technology, applied in the field of alloys, can solve the problems of affecting antenna performance, high cost, expensive Ag, etc., and achieve the effects of improved service life, low cost, good mechanical properties and electrical conductivity

Active Publication Date: 2021-09-28
KUNSHAN BRANCH INST OF MICROELECTRONICS OF CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The antenna material used in the prior art is generally Cu-Ag alloy. Although this alloy has good electrical conductivity, the price of Ag is relatively expensive and the cost is relatively high.
Under the action of an electric field, silver ions migrate from high potential to low potential, forming flocculent or dendritic expansion, and black silver oxide is easily formed on the boundary between high and low potential, which affects the performance of the antenna

Method used

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  • A kind of copper alloy and its preparation method and antenna material
  • A kind of copper alloy and its preparation method and antenna material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Carry out batching according to following target composition, prepare copper alloy:

[0045] Mg 0.2wt%, Fe 0.4wt%, Sn 0.4wt%, Y 0.06wt%, balance Cu.

[0046] The magnesium source, iron source, tin source, yttrium source and copper source are smelted in a vacuum melting furnace, and the magnesium source and tin source are respectively wrapped with copper sheets and put into the vacuum melting furnace at a melting temperature of 1230°C. Stir continuously for 7 minutes after melting, and the stirring speed is 20 rpm.

[0047] Cast the smelted alloy liquid into a cylindrical quartz sand mold ingot mold. Before casting, use a brush to brush the mixture of alcohol and kerosene on the inner surface of the ingot mold as a release agent, then ignite it with fire, and repeat it twice. Utilize demoulding and improve the surface quality of the ingot obtained; the temperature of casting is 1230°C.

[0048] After the casting is completed, water cooling and demoulding are carried ou...

Embodiment 2

[0057] Carry out batching according to following target composition, prepare copper alloy:

[0058] Mg 0.2wt%, Fe 0.2wt%, Sn 0.2wt%, Y 0.1wt%, the balance is Cu.

[0059] The magnesium source, iron source, tin source, yttrium source and copper source are smelted in a vacuum melting furnace, and the magnesium source and tin source are respectively wrapped with copper sheets and put into the vacuum melting furnace at a melting temperature of 1220°C. Stir continuously for 7 minutes after melting, and the stirring speed is 20 rpm.

[0060] Cast the smelted alloy liquid into a cylindrical quartz sand mold ingot mold. Before casting, use a brush to brush the mixture of alcohol and kerosene on the inner surface of the ingot mold as a release agent, then ignite it with fire, and repeat it twice. Utilize demoulding and improve the surface quality of the ingot obtained; the temperature of casting is 1220°C.

[0061] After the casting is completed, water cooling and demoulding are carr...

Embodiment 3

[0068] Carry out batching according to following target composition, prepare copper alloy:

[0069] Mg 0.2wt%, Fe 0.2wt%, Sn 0.2wt%, Y 0.04wt%, balance Cu.

[0070] The magnesium source, iron source, tin source, yttrium source and copper source are smelted in a vacuum melting furnace, and the magnesium source and tin source are respectively wrapped with copper sheets and put into the vacuum melting furnace at a melting temperature of 1240°C. Stir continuously for 9 minutes after melting, and the stirring speed is 20 rpm.

[0071] Cast the smelted alloy liquid into a cylindrical quartz sand mold ingot mold. Before casting, use a brush to brush the mixture of alcohol and kerosene on the inner surface of the ingot mold as a release agent, then ignite it with fire, and repeat it twice. Utilize demoulding and improve the surface quality of the ingot obtained; the temperature of casting is 1240°C.

[0072] After the casting is completed, water cooling and demoulding are carried ou...

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Abstract

The invention provides a copper alloy, which is composed of: 0.2-1wt% of Mg; 0.1-0.5wt% of Fe; 0.1-0.5wt% of Sn; 0.04-0.15wt% of Y; the balance is Cu. In the present invention, by controlling the various components and component contents in the copper alloy, further, through high-temperature extrusion, solid solution, cold deformation and aging processes in the process of preparing the copper alloy, the copper alloy has high electrical conductivity at the same time , strength and corrosion resistance, meet the use requirements of antenna materials, improve the service life of antenna materials, and the cost of this copper alloy material is low. The present invention also provides a preparation method of the copper alloy described in the above technical solution and an antenna material.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a copper alloy, a preparation method thereof, and an antenna material. Background technique [0002] With the development of wireless communication, antennas are used more and more widely. The reception and transmission of electromagnetic waves requires the help of antennas. Selecting materials with good conductivity can reduce the loss resistance of the antenna, thereby improving the efficiency and performance of the antenna. Antennas are often exposed to the air, exposed to the sun, and eroded by rain, so they need to have certain corrosion resistance. The antenna material used in the prior art is generally Cu-Ag alloy. Although this alloy has good electrical conductivity, the price of Ag is relatively expensive and the cost is relatively high. Under the action of an electric field, silver ions migrate from high potential to low potential, forming flocculent or dendritic exten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/00C22C1/03C22F1/08C22F1/02
CPCC22C1/03C22C9/00C22F1/02C22F1/08
Inventor 田卡梁晓新杜勇何霜霜
Owner KUNSHAN BRANCH INST OF MICROELECTRONICS OF CHINESE ACADEMY OF SCI
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