Cu-Ni-Sn alloy belt foil for 5G communication and preparation method thereof

A cu-ni-sn, alloy strip technology, applied in the field of copper alloy materials, can solve problems such as the inability to achieve industrialized production

Active Publication Date: 2020-03-17
CNMC ALBETTER ALBRONZE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Some domestic manufacturers are also gradually looking for ways to replace beryllium copper and environmentally friendly copper alloys, which are mainly used in 5G communication equipment to shield EMI shrapnel. In addition to meeting the needs of customers, the key technology in the production process is also the bottleneck that restricts domestic copper processing enterprises. , such as melting and casting microstructure segregation, high-temperature homogenization treatment, and air-cushion furnace annealing of ultra-thin strips. At present, no other domestic enterprises have made breakthroughs, and industrial production cannot be realized.

Method used

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  • Cu-Ni-Sn alloy belt foil for 5G communication and preparation method thereof
  • Cu-Ni-Sn alloy belt foil for 5G communication and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Melting: Melt the weighed copper and nickel in the smelting furnace, add charcoal to cover and stir after fully melting, add manganese (coated with copper skin), tin and zinc (coated with copper skin) in sequence, and heat up to Stir and melt at 1330°C. After melting, remove slag and cover it with charcoal. After standing still, it is ready to transfer to the holding furnace. After the converter, remove slag again and cover it with calcined charcoal;

[0031] (2) Horizontal continuous casting: drawing casting is carried out by reverse push-pull-stop casting method, the melt temperature is 1260°C when pulling up, the melt temperature is 1230°C during normal casting, and the pulling speed is 50mm / min, The reverse thrust is 1.5mm, the normal casting speed is 110mm / min, the billet outlet temperature is 300°C, and the billet is drawn and cast into a billet with a billet size of 14×450mm and a coil weight of 3.45 tons; the cooling water in the drawing casting process The ...

Embodiment 2

[0040] (1) Melting: Melt the weighed copper and nickel in the smelting furnace, add charcoal to cover and stir after fully melting, add manganese (coated with copper skin), tin and zinc (coated with copper skin) in sequence, and heat up to Stir and melt at 1300~1330°C, remove slag and cover with charcoal after melting, stand still to prepare the converter, after the converter, carry out slag removal again, and cover with calcined charcoal;

[0041] (2) Horizontal continuous casting: drawing casting is carried out in the way of reverse push-pull-stop. The melt temperature is 1250°C~1290°C when pulling up, and the melt temperature is 1200°C~1250°C during normal casting. The speed is 40mm / min to 60mm / min, the reverse thrust is 0.5mm to 2.5mm, the normal casting speed is 100mm / min to 120mm / min, the billet outlet temperature is 200°C to 350°C, and the billet is drawn and cast into coils. The size of the billet is 14×450mm, and the weight of the coil is 3-4 tons. The pressure is 0....

Embodiment 3

[0050] (1) Melting: Melt the weighed copper and nickel in the smelting furnace, add charcoal to cover and stir after fully melting, add manganese (coated with copper skin), tin and zinc (coated with copper skin) in sequence, and heat up to Stir and melt at 1300~1330°C, remove slag and cover with charcoal after melting, stand still to prepare the converter, after the converter, carry out slag removal again, and cover with calcined charcoal;

[0051] (2) Horizontal continuous casting: drawing casting is carried out in the way of reverse push-pull-stop. The melt temperature is 1250°C~1290°C when pulling up, and the melt temperature is 1200°C~1250°C during normal casting. The speed is 40mm / min to 60mm / min, the reverse thrust is 0.5mm to 2.5mm, the normal casting speed is 100mm / min to 120mm / min, the billet outlet temperature is 200°C to 350°C, and the billet is drawn and cast into coils. The size of the billet is 14×450mm, and the weight of the coil is 3-4 tons. The pressure is 0....

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Abstract

The invention discloses a Cu-Ni-Sn alloy belt foil for 5G communication and a preparation method thereof. The Cu-Ni-Sn alloy belt foil is prepared from the following raw material components in percentage by weight: 8.5-9.5% of nickel, 5.5-6.5% of tin, 0.2-0.5% of manganese, 0.1-0.3% of zinc, and the balance copper and impurities. The preparation method comprises the following steps: melting weighed copper and nickel, covering with wood charcoal, sequentially adding manganese, tin and zinc, stirring and dissolving after heating up to a temperature of 1300-1330 DEG C, slagging-off, covering withwood charcoal, standing and converting, slagging-off, and covering with wood charcoal; performing pull-casting, homogenizing annealing treatment, face-milling, cold-rolling cogging, intermediate solid-solution treatment, intermediate rolling, intermediate solid-solution treatment and finished product rolling by adopting a reverse pushing-pulling and stopping blank pulling way, and obtaining foilwith a thickness being 0.04-0.1mm. Elasticity, wear resistance and corrosion resistance of a Cu-Ni-Sn copper alloy in the prior art are kept, and meanwhile, the Cu-Ni-Sn alloy belt has good forming property, relatively high conductivity and excellent shielding performance, can realize industrial production of the Cu-Ni-Sn alloy belt foil for 5G communication, replaces import, fills up the domesticblank to promote copper processing industry development needs of the current stage.

Description

technical field [0001] The invention relates to the technical field of copper alloy materials, in particular to a Cu-Ni-Sn alloy strip and foil material for 5G communication and a preparation method thereof. Background technique [0002] With the development of aerospace and 5G communication and electronics industries, the requirements for materials are getting higher and higher, and they are developing in the direction of thin, light and small. High-strength and high-elasticity copper alloy has excellent characteristics such as high strength, good elasticity, fatigue resistance, small elastic hysteresis, and corrosion resistance. It is widely used in the manufacture of electronics, electrical, communications, instruments, meters and other industries. Various elastic reeds, electrical contacts, spot welding poles, explosion-proof tools, etc. Different application scenarios require different properties of materials. As a necessary elastic material for 5G communication base s...

Claims

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Application Information

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IPC IPC(8): C22C9/06C22C1/02C22F1/08C22F1/02
CPCC22C1/02C22C9/06C22F1/002C22F1/02C22F1/08
Inventor 张县委李学帅贺玲慧姜业欣李洪岩田原晨李泽越孙克斌丁长涛盖兆冰
Owner CNMC ALBETTER ALBRONZE
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