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A kind of aluminum alloy conductor material with high conductivity, heat resistance and creep resistance, preparation method and application thereof

An aluminum alloy conductor and anti-creep technology, applied in the field of metallurgical materials, can solve the problems of increased production cost, complicated preparation process, and no heat resistance of alloys

Active Publication Date: 2022-04-22
CENT SOUTH UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The patent with the publication number CN110310755A discloses a creep-resistant aluminum alloy conductor and its preparation method. This technical solution does not involve the heat resistance of the alloy, and more elements are added, which will increase the production cost and the preparation process. complex

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  • A kind of aluminum alloy conductor material with high conductivity, heat resistance and creep resistance, preparation method and application thereof
  • A kind of aluminum alloy conductor material with high conductivity, heat resistance and creep resistance, preparation method and application thereof
  • A kind of aluminum alloy conductor material with high conductivity, heat resistance and creep resistance, preparation method and application thereof

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Embodiment Construction

[0044] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail in conjunction with specific embodiments.

[0045] In the examples and comparative examples of the present invention, industrial pure aluminum ingots are used as raw materials, Zr, Cu, Ni, La, and Y elements are added in the form of master alloys, and the melting temperature is controlled to be 750°C. Stirring, refining, rapid component analysis in front of the furnace, and adjust to the composition ratio described in Table 1 according to the analysis results, wherein the content of impurity element Si is less than or equal to 0.05%, and the total content of Ti, V, Cr, and Mn impurity elements is less than 0.01wt.%. , Al is the balance.

[0046] Table 1 Alloy element composition distribution table (wt%)

[0047]

[0048]

[0049] After the chemical composition is stabilized, continuous casting is carried ...

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Abstract

The invention relates to an aluminum alloy conductor material with high conductivity, heat resistance and creep resistance, its preparation method and application. The conductor material comprises the following components in terms of mass percentage: Zr: 0.02-0.10%, Cu: 0.04-0.12% , Ni: 0.02-0.06%, La: 0.05-0.15%, Y: 0.005-0.020%, and the balance is Al and unavoidable impurity elements; the preparation method includes batching, smelting, casting, deformation and heat treatment. The aluminum alloy conductor material provided by the present invention has high electrical conductivity and good heat resistance and creep resistance. The electrical conductivity at 20°C is greater than 60.4% IACS. The thermal temperature is 210°C, and the steady-state creep rate under the conditions of 210°C and 30MPa stress does not exceed 1.79×10 ‑7 the s ‑1 . The materials designed and prepared by the present invention can be used as conductive materials, including but not limited to wires, busbars, guide rods, wires, cables, and are especially suitable for preparing conductive materials with high service temperature.

Description

technical field [0001] The invention belongs to the technical field of metallurgical materials, and relates to an aluminum alloy conductor material with high conductivity, heat resistance and creep resistance, a preparation method and an application. [0002] technical background [0003] There is a serious imbalance between power demand and power resources between regions in my country. It is necessary to transmit power resources from enriched areas to areas where power loads are concentrated through long-distance large-capacity transmission. However, as the transmission distance increases, the power loss of transmission lines increases. Big. In the power loss of the transmission line, the power loss caused by the conductor resistance accounts for more than 80%, and the conductivity is increased by 1% IACS, and the average annual power loss per kilometer of the line is reduced by about 2000 degrees. As the power transmission capacity increases, the service temperature of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C1/03
CPCC22C21/00C22C1/03C22C1/026
Inventor 李红英席志海靳东杨长龙胡博金鹏李希元李小兰谭澈
Owner CENT SOUTH UNIV
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