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High-conductivity soft aluminum monofilament with good heat resistance and preparation method thereof

A technology with high conductivity and heat resistance, applied in the direction of conductive materials, conductive materials, cable/conductor manufacturing, etc., can solve the problems that heat resistance cannot meet the needs of power grid construction and development, and achieve excellent mechanical properties

Pending Publication Date: 2020-02-21
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] CN201610388851 Chinese patent discloses a low-cost 63% IACS high-conductivity duralumin wire and its manufacturing method, but its heat resistance still cannot meet the needs of power grid construction and development

Method used

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  • High-conductivity soft aluminum monofilament with good heat resistance and preparation method thereof
  • High-conductivity soft aluminum monofilament with good heat resistance and preparation method thereof
  • High-conductivity soft aluminum monofilament with good heat resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The components of the high-conductivity soft aluminum monofilament with good heat resistance provided in this example are shown in Table 1, and the preparation parameters and properties are shown in Table 2:

[0042] Table 1. Mass percentage of each component

[0043]

[0044] Table 2. Preparation process parameters and properties

[0045]

[0046] Among them, the strength residual rate after heat preservation at 230° C. for 1 hour is ≥90%, which proves that the heat resistance of this example is excellent.

Embodiment 2

[0048] The components of the high-conductivity soft aluminum monofilament with good heat resistance provided in this example are shown in Table 3, and the preparation parameters and properties are shown in Table 4:

[0049] Table 3. Mass percentage of each component

[0050]

[0051] Table 4. Preparation process parameters and properties

[0052]

[0053] Among them, the strength residual rate after heat preservation at 230° C. for 1 hour is ≥93%, which proves that the heat resistance of this example is excellent.

Embodiment 3

[0055] The components of the high-conductivity soft aluminum monofilament with good heat resistance provided in this example are shown in Table 5, and the preparation parameters and properties are shown in Table 6:

[0056] Table 5. Mass percentage of each component

[0057]

[0058] Table 6. Preparation process parameters and properties

[0059]

[0060] Among them, the strength residual rate after heat preservation at 230° C. for 1 hour is ≥92%, which proves that the heat resistance of this example is excellent.

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Abstract

The invention provides a high-conductivity soft aluminum monofilament with good heat resistance and a preparation method thereof. The soft aluminum monofilament is prepared from industrial pure aluminum with the purity of more than or equal to 99.7%, Al-B intermediate alloy and Al-RE intermediate alloy, and the Al-B intermediate alloy and the Al-RE intermediate alloy are prepared from the following components of, in percentage by mass, less than or equal to 0.02% of B, 0.1%-0.3% of RE, less than or equal to 0.07% of Si, less than or equal to 0.2% of Fe, 0.012% of (V + Ti + Cr + Mn) and the balance Al and inevitable impurities; and Re is one or two of La or Ce. According to the soft aluminum monofilament, the heat resistance of the soft aluminum monofilament is greatly improved on the basisof improving the electric conductivity of the soft aluminum monofilament, so that the soft aluminum monofilament more meets the requirement of power grid construction.

Description

technical field [0001] The invention relates to a preparation method of an electrical conductor material, in particular to a high-conductivity soft aluminum monofilament with good heat resistance and a preparation method thereof. Background technique [0002] The characteristics of centralized energy distribution and economic development determine that large-capacity, low-loss, long-distance power transmission must be carried out. The rapid development of power grid construction has put forward higher requirements for the performance of overhead conductors. Steel-cored aluminum stranded wire, one of the most widely used wires in overhead transmission lines, accounts for more than 80% of the entire wire type, so the optimization of its performance is not only the need for electric energy development but also has huge economic benefits. [0003] Chinese Patent No. CN201610388851 discloses a low-cost 63% IACS high-conductivity hard aluminum wire and a manufacturing method ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/03C22C1/06B21C1/00H01B1/02H01B13/00
CPCC22C21/00C22C1/026C22C1/03C22C1/06B21C1/003H01B1/023H01B13/00
Inventor 陈保安祝志祥潘学东张强陈新杨长龙丁一赵丽丽张宏宇韩钰韦瑾丁雪赵蕊李悦悦
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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