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A high-strength and high-conductivity aluminum-based wire and its preparation method

A high-conductivity, aluminum-based technology, applied in conductive materials, conductive materials, conductors, etc., can solve problems such as strength obstacles, and achieve the effect of reducing resistivity, high conductivity, and reducing dendritic spacing and dislocations

Active Publication Date: 2019-12-03
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, from the perspective of resource conservation, the strength of traditional aluminum wires has become the biggest obstacle, so it is urgent to improve the strength of transmission wires

Method used

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  • A high-strength and high-conductivity aluminum-based wire and its preparation method

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Embodiment 1

[0017] Embodiment 1: The high-strength and high-conductivity aluminum-based wire of this embodiment is made of the following metal elements and non-metal elements: the mass of aluminum is 1, 0.30% yttrium, 0.50% germanium, 0.20% erbium, and 0.30% copper , magnesium 0.60%, boron 0.40%, silicon 0.50%, iron 0.80%;

[0018] A method for preparing an aluminum-based wire with high strength and high conductivity, the specific steps are as follows:

[0019] (1) Heat and melt aluminum ingots into aluminum water;

[0020] (2) At a temperature higher than the melting point of aluminum (the temperature is 890°C), add an aluminum-germanium master alloy, an aluminum-erbium master alloy, an aluminum-yttrium master alloy, an aluminum-copper master alloy, and an aluminum-boron master alloy to the aluminum water obtained in step (1). Alloy, iron, and silicon are dispersed evenly. After 10 minutes of heat preservation, magnesium is added, and then heat preservation is carried out for 15 minutes...

Embodiment 2

[0025] Embodiment 2: The high-strength and high-conductivity aluminum-based wire of this embodiment is made of the following metal elements and non-metal elements: the mass of aluminum is 1, 0.40% yttrium, 0.20% germanium, 0.40% erbium, and 0.50% copper , magnesium 0.50%, boron 0.20%, silicon 0.80%, iron 0.50%;

[0026] A method for preparing an aluminum-based wire with high strength and high conductivity, the specific steps are as follows:

[0027] (1) Heat and melt aluminum ingots into aluminum water;

[0028] (2) At a temperature higher than the melting point of aluminum (the temperature is 870°C), add an aluminum-germanium master alloy, an aluminum-erbium master alloy, an aluminum-yttrium master alloy, an aluminum-copper master alloy, and an aluminum-boron master alloy to the aluminum water obtained in step (1). Alloy, iron, and silicon are dispersed evenly. After 12 minutes of heat preservation, magnesium is added, and 13 minutes of heat preservation is added. 7g of slag...

Embodiment 3

[0033] Embodiment 3: The aluminum-based wire with high strength and high conductivity of this embodiment is made of the following metal elements and non-metal elements: the mass of aluminum is 1, 0.32% of yttrium, 0.30% of germanium, 0.35% of erbium, and 0.35% of copper , magnesium 0.55%, boron 0.25%, silicon 0.70%, iron 0.70%;

[0034] A method for preparing an aluminum-based wire with high strength and high conductivity, the specific steps are as follows:

[0035] (1) Heat and melt aluminum ingots into aluminum water;

[0036] (2) At a temperature higher than the melting point of aluminum (the temperature is 860°C), add an aluminum-germanium master alloy, an aluminum-erbium master alloy, an aluminum-yttrium master alloy, an aluminum-copper master alloy, and an aluminum-boron master alloy to the aluminum water obtained in step (1). Alloy, iron, and silicon are evenly dispersed. After 15 minutes of heat preservation, magnesium is added, and 10 minutes of heat preservation is ...

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Abstract

The invention relates to a high-strength and high-conductivity aluminum-based wire and a preparation method thereof and belongs to the technical field of materials. The intermediate-strength, high-heat-resistance and high-conductivity aluminum-based wire is prepared from the following metallic elements and non-metallic elements of, with the mass percentage of aluminum as 1, 0.3-0.4% of yttrium, 0.2-0.5% of germanium, 0.2-0.4% of erbium, 0.3-0.5% of copper, 0.5-0.6% of magnesium, 0.2-0.4% of boron, 0.5-0.8% of silicon and 0.5-0.8% of iron. Erbium, yttrium, germanium and copper are added into aluminum, thus as-cast grains can be refined, dendrite spaces and dislocation are reduced, structure homogenization is achieved, impurity elements in the aluminum are removed, and the conductivity of analuminum alloy is improved; and the structure is refined, forming of a theta (CuAl2) strengthening phase is promoted, and the alloy strength is improved.

Description

technical field [0001] The invention relates to a high-strength and high-conductivity aluminum-based wire and a preparation method thereof, belonging to the technical field of materials. Background technique [0002] In recent years, the demand for electricity has been continuously increasing, and the transmission of electric energy has higher requirements. The construction of a power grid based on high-voltage lines has attracted much attention. However, from the perspective of resource conservation, the strength of traditional aluminum wires has become the biggest obstacle, so it is urgent to improve the strength of transmission wires. However, the strength and conductivity of aluminum alloy conductor materials are a pair of contradictions. How to better balance the two indicators has become the key to the current development of conductive aluminum alloys. Contents of the invention [0003] The object of the present invention is to disclose a high-strength and high-cond...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C1/03C22F1/04H01B1/02
CPCC22C1/026C22C1/03C22C21/00C22F1/04H01B1/023
Inventor 陈亮维李平安杨钢吴云峰全琪刘状
Owner KUNMING UNIV OF SCI & TECH
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