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A kind of copper alloy and its preparation method and application

A copper alloy and raw material preparation technology, applied in the direction of contact parts, etc., can solve problems such as medium strength

Active Publication Date: 2019-03-08
沈阳慧坤新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is widely used in the connector industry, but its strength is medium and cannot meet higher requirements

Method used

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  • A kind of copper alloy and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Raw materials: by weight fraction, 98.62 parts of copper, 0.6 part of nickel, 0.1 part of titanium, 0.1 part of phosphorus, 0.3 part of lead, 0.08 part of tin, and 0.2 part of other unavoidable impurities.

[0020] Horizontal continuous casting process: Put the raw materials of the above components into the melting furnace for alloying. The melting sequence of the melting in the melting furnace is that copper is added first, and the temperature of the melting furnace rises to 1080°C. After the copper is melted, nickel and lead are added, followed by tin, titanium and phosphorus. After the melt is alloyed, keep it at 1080°C for 20 minutes, and put it into the holding furnace through the launder, and the temperature of the holding furnace is controlled at 1200°C. The copper alloy liquid is gradually solidified after being cooled by the crystallizer, and drawn out by the traction device. The traction device automatically controls the traction process by the motor. The tr...

Embodiment 2

[0023] Take 98.15 parts of copper, 0.8 parts of nickel, 0.2 parts of titanium, 0.15 parts of phosphorus, 0.4 parts of lead, 0.15 parts of tin, and 0.15 parts of other unavoidable impurities.

[0024] Horizontal continuous casting process: Put the raw materials of the above components into the melting furnace for alloying. The melting sequence of the melting in the melting furnace is that copper is added first, and the temperature of the melting furnace rises to 1200°C. After the copper is melted, nickel, lead, tin, titanium and phosphorus are added. After the melt is alloyed, it is kept at 1200°C for 20 minutes, and then put into the holding furnace through the launder, and the temperature of the holding furnace is controlled at 1300°C. The copper alloy liquid is gradually solidified after being cooled by the crystallizer, and drawn out by the traction device. The traction device automatically controls the traction process by the motor. The traction method is repeated pull-s...

Embodiment 3

[0027] Raw materials: Take 97.74 parts of copper, 0.9 parts of nickel, 0.3 parts of titanium, 0.16 parts of phosphorus, 0.5 parts of lead, 0.3 parts of tin, and 0.1 parts of other unavoidable impurities.

[0028] The horizontal continuous casting process is the same as in Example 1.

[0029] Cold drawing process: Stretch from 20mm in diameter to 10mm in diameter, solid solution at 740°C, then stretch to 8mm in diameter, age at 460°C, and stretch to 3mm in diameter.

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Abstract

The invention relates to a copper alloy material and a preparation method and application thereof. The copper alloy material comprises, by weight, 0.2-0.8 part of lead, 0.5-1.2 parts of nickel, 0.01-0.2 part of phosphorus, 0.01-0.5 part of titanium, 0.05-0.5 part of stannum, and 96.7-98.8 parts of copper. The copper content of the copper alloy material is greater than 97%, methods of aging strengthening, deformation strengthening, microelement alloying strengthening are comprehensively adopted, and the alloy material with high strength and high electric conduction is obtained. The alloy has nomagnetism and no low-temperature brittleness, the abrasion resistance is high, the corrosion resistance is high, sparks does not occur by impacting, requirements of copper alloy used for high-power connectors in industries such as transportation, aerospace and communications are met; and the alloy is easy to turn and applicable for high-speed automatic lathe machining.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal alloys, in particular to a copper alloy and its preparation method and application, and the prepared copper alloy is used to prepare connectors. Background technique [0002] With the rapid development of modern industry, connectors have become independent from industrial production and become a professional production industry. As an accessory product, although the connector is not the main body of the equipment, once a problem occurs, the impact will be comprehensive. The connector industry is related to various fields of civil, industrial and national defense. With the advancement of science and technology, higher functional quality requirements are put forward for connectors, which in turn promotes the rapid development of the connector industry. In addition to electronic connectors, traditional integrated circuits, and connectors, various excellent functional connectors have emerg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/08C22C9/06C22C9/00C22C9/02C22F1/08H01R13/03
Inventor 廉旭廉英云关书礼李丙杰
Owner 沈阳慧坤新材料科技有限公司
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