Copper alloy strip containing tantalum and preparation method thereof

A technology of copper alloy strip and copper alloy, which is applied in the field of alloy strip manufacturing, can solve problems such as difficulty in uniform dissolution of tantalum, difficulty in strip processing, etc., achieve good magnetic permeability, uniform distribution of alloy components, and improve the effect of alloy strength

Active Publication Date: 2021-08-31
HENAN POLYTECHNIC UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to overcome the problems in the above-mentioned prior art that tantalum is uniformly dissolved in the copper matrix, and the strip material with a large width-to-thickness ratio is difficult to process, and provides a tantalum-containing copper alloy strip and a preparation method thereof, the tantalum-containing copper alloy strip Tape has high magnetic permeability, electrical conductivity and high strength

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  • Copper alloy strip containing tantalum and preparation method thereof
  • Copper alloy strip containing tantalum and preparation method thereof

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preparation example Construction

[0045] In order to further understand the tantalum-containing copper alloy strip of the present invention, the present invention also provides a method for preparing the tantalum-containing copper alloy strip. The preparation method includes the following steps:

[0046] S1, weigh copper-tantalum master alloy, silver, copper-iron master alloy and copper according to the ratio of raw materials, place them in a continuous casting machine filled with protective gas for high-temperature treatment, stir the alloy melt after complete melting, and then stand still, After being cooled by cooling water, drawing casting is carried out to obtain a continuously cast tantalum-containing copper alloy rod;

[0047] In a specific embodiment of the present invention, the preparation method of the copper-tantalum master alloy in step S1 is as follows: grind copper and tantalum into powder, mix them uniformly according to the mass ratio of 19:1, and then press the uniformly mixed powder into a cy...

Embodiment 1

[0063] The tantalum-containing copper alloy strip provided in this embodiment includes the following components in mass percentage: tantalum: 0.8%, silver: 0.8%, iron: 0.02%, and the balance is copper.

[0064] A method for preparing a tantalum-containing copper alloy strip provided in this embodiment comprises the following steps:

[0065] S1, weigh 1600g of copper-tantalum master alloy, 80g of silver, 40g of copper-iron master alloy and 8280g of copper, and place them in the graphite crucible of the vacuum intermediate frequency continuous casting machine with vertical structure. Vacuumize, and start to heat up when the vacuum degree is higher than 5.0Pa. After the temperature rises to 600°C, stop vacuuming and fill the vacuum intermediate frequency continuous casting machine with argon or nitrogen protective gas until the vacuum degree is 1.1MPa, and then heat up to 1500°C, stir the alloy melt after it is completely melted, then let it stand for 3 minutes, turn on the cooli...

Embodiment 2

[0076] The tantalum-containing copper alloy strip provided in this embodiment includes the following components in mass percentage: tantalum: 0.4%, silver: 0.1%, iron: 0.02%, and the balance is copper.

[0077] In the preparation method of a tantalum-containing copper alloy strip provided in this embodiment, in step S1, 800 g of copper-tantalum master alloy, 10 g of silver, 40 g of copper-iron master alloy and 9150 g of copper are weighed. Other methods and steps are the same as those in Embodiment 1, and will not be repeated here.

[0078] The magnetic permeability, electrical conductivity and strength of the tantalum-containing copper alloy strip prepared in this embodiment were tested, and the test standard and method were the same as those in Embodiment 1.

[0079] The ratio of the width to the thickness of the tantalum-containing copper alloy strip prepared in this embodiment is 10.

[0080] By testing the magnetic permeability, electrical conductivity and strength of th...

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Abstract

The invention provides a tantalum-containing copper alloy wire / ribbon, which comprises the following components in mass percentage: tantalum: 0.01-1.0%, silver: 0.01-1.0%, iron: 0.01-0.5%, and the balance is copper. It also provides a preparation method of tantalum-containing copper alloy wire / strip. The continuous casting machine performs high-temperature treatment on copper-tantalum master alloy, silver, copper-iron master alloy and copper, draws and casts after cooling, and then draws for many times. After processing, it is continuously heat-treated on annealing equipment to obtain tantalum-containing copper alloy wires, which are rolled into tantalum-containing copper alloy strips of required specifications by twin-roll rolling mills. The addition of tantalum in the present invention effectively improves the magnetic permeability of the copper alloy, the addition of silver improves the strength of the copper alloy, and ensures the good electrical conductivity of the copper alloy wire / band, and the iron element in the copper alloy is conducive to further strengthening the copper alloy. Magnetic permeability, the elemental combination of tantalum, silver, iron, and copper makes the copper alloy material have good magnetic permeability, electrical conductivity and high strength.

Description

technical field [0001] The invention belongs to the technical field of alloy strip manufacture, and in particular relates to a tantalum-containing copper alloy strip and a preparation method thereof. Background technique [0002] With the wide application of 5G electronic products, handheld terminals have higher requirements for signal and data transmission, and the wireless receiving devices of electronic terminals require conductors to have higher magnetic permeability, conductivity and strength, in order to meet the high stability of wireless connections, High data transfer characteristics. Copper alloy strips containing tantalum have the characteristics of high magnetic permeability, high conductivity and high strength, which can effectively improve the stability of signal reception in wireless receiving devices and significantly increase the speed of data transmission. Copper alloy materials containing tantalum are used as electronic terminal wireless The transmission ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/03C22C9/00B22D11/00C22F1/08B21C37/02
CPCB21C37/02B22D11/004C22C1/03C22C9/00C22F1/08
Inventor 曹军王福荣宋克兴周延军
Owner HENAN POLYTECHNIC UNIV
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