Creep-resistant high-conductive copper-clad aluminum alloy conductor and preparation method thereof

A technology of copper-clad aluminum alloy and aluminum alloy melt, which is applied in the direction of cable/conductor manufacturing, conductor, insulated conductor, etc., can solve the problems of high cost of copper wire and cable, increased contact resistance, poor bending performance, etc., and achieves improvement Compressive creep performance, recovery plasticity, and the effect of improving creep resistance

Inactive Publication Date: 2019-06-18
SHENZHEN SHENZHOU CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the conductor materials of wires and cables in my country are copper conductors, but due to the shortage of copper resources in my country and the high price of copper, copper conductor materials account for about 70% of the cost of copper wires and cables, resulting in too much cost for manufacturing copper wires and cables; The use of pure aluminum conductor materials will cause large creep after long-term operation or current overload, resulting in increased contact resistance, which is easy to cause accidents, and the bending performance is not good, easy to crack or break, which is also easy to cause accidents

Method used

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  • Creep-resistant high-conductive copper-clad aluminum alloy conductor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The creep-resistant high-conductivity copper-clad aluminum alloy conductor of Example 1 in Table 1 was prepared according to the following steps:

[0037] (1) Smelting treatment: Melt the aluminum alloy raw material at 750°C to form a melt, then carry out degassing and refining, and the furnace temperature is 740°C;

[0038] (2) Continuous casting and rolling treatment: using the full two-roller continuous casting and rolling production process, the melt obtained in step (1) is poured into a continuous casting machine for casting, and is continuously cooled with cooling water during casting to obtain a cast The billet is continuously fed into the continuous rolling mill. The continuous rolling mill is lubricated by emulsion and rolled into an aluminum alloy rod. The casting temperature is 700°C, the cooling water temperature is 30°C, the rolling temperature is 500°C, and the final rolling temperature is 500°C. 300°C, the temperature of the emulsion is below 32°C; cast a...

Embodiment 2

[0042] The creep-resistant high-conductivity copper-clad aluminum alloy conductor of Example 2 in Table 1 was prepared according to the following steps:

[0043] (1) Smelting treatment: Melt the aluminum alloy raw material at 730°C to form a melt, then carry out degassing and refining, and then release it at 720°C;

[0044](2) Continuous casting and rolling treatment: using the full two-roller continuous casting and rolling production process, the melt obtained in step (1) is poured into a continuous casting machine for casting, and is continuously cooled with cooling water during casting to obtain a cast The billet is continuously fed into the continuous rolling mill. The continuous rolling mill is lubricated by emulsion and rolled into an aluminum alloy rod. The casting temperature is 720°C, the cooling water temperature is 25°C, the rolling temperature is 500°C, and the final rolling temperature is 300°C, the temperature of the emulsion is below 35°C; casting an aluminum al...

Embodiment 3

[0048] The creep-resistant high-conductivity copper-clad aluminum alloy conductor of Example 3 in Table 1 was prepared according to the following steps:

[0049] (1) Smelting treatment: Melt the aluminum alloy raw material at 730°C to form a melt, then carry out degassing and refining, and then release it at 700°C;

[0050] (2) Continuous casting and rolling treatment: using the full two-roller continuous casting and rolling production process, the melt obtained in step (1) is poured into a continuous casting machine for casting, and is continuously cooled with cooling water during casting to obtain a cast The billet is continuously fed into the continuous rolling mill. The continuous rolling mill is lubricated by emulsion and rolled into an aluminum alloy rod. The casting temperature is 720°C, the cooling water temperature is 25°C, the rolling temperature is 180°C, and the final rolling temperature is 180°C. 260°C, the temperature of the emulsion is below 25°C; cast an alumin...

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Abstract

The invention relates to the technical field of electric wires, and in particular relates to a creep-resistant high-conductive copper-clad aluminum alloy conductor and preparation method thereof. Thecreep-resistant high-conductive copper-clad aluminum alloy conductor comprises an aluminum alloy rod and a copper layer; the copper layer uniformly and centrically coats the surface of the aluminum alloy rod; the aluminum alloy rod comprises the following materials in percentage by weight: 0.05-3.00% of iron, 0.005-0.60% of copper, 0.005-0.50% of magnesium, 0.005-0.50% of cerium, 0.005-0.05% of boron and the balance of aluminum and inevitable impurities. The preparation method of the creep-resistant high-conductive copper-clad aluminum alloy conductor comprises the following steps of smelting,continuous casting and rolling, coating and welding, annealing and wiredrawing. The creep-resistant high-conductive copper-clad aluminum alloy conductor provided by the invention is high in electricconductivity and good in mechanical strength, has the extension strength capable of being up to 185MPa, and can be applied to electric wire conductors.

Description

technical field [0001] The invention relates to the technical field of electric wires and cables, in particular to a creep-resistant high-conductivity copper-clad aluminum alloy conductor and a preparation method thereof. Background technique [0002] The wire and cable industry is the second largest industry in China after the automobile industry, and the product variety satisfaction rate and domestic market share both exceed 90%. With the rapid development of my country's economy, the great development of the power system, and large-scale infrastructure construction, the demand for wire and cable in my country has grown rapidly. At present, most of the conductor materials of wires and cables in my country are copper conductors, but due to the shortage of copper resources in my country and the high price of copper, copper conductor materials account for about 70% of the cost of copper wires and cables, resulting in too much cost for manufacturing copper wires and cables; Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/02H01B7/00H01B13/00C22C21/00C22C21/16C22C21/06C22F1/04C22F1/047C22F1/057C22F1/08
Inventor 左新国鲁正荣周华斌
Owner SHENZHEN SHENZHOU CABLE
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