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Al-Mg aluminum alloy, preparation method thereof and aluminum alloy cable

An aluminum alloy and aluminum alloy ingot casting technology, applied in the field of alloys, can solve the problems of lack of clear specific indicators for improvement, lack of improvement in fatigue resistance and creep resistance, and insufficient comprehensive properties of aluminum alloys.

Pending Publication Date: 2014-03-26
ANHUI JOY SENSE CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example: the aluminum alloys disclosed by the Chinese patents whose publication numbers are CN101525709A, CN101914708, and CN102222546A, although the ductility of the aluminum alloy has been improved, the fatigue resistance has not been improved, and although it is also mentioned that the creep resistance has been improved, but The specific index of improvement is not clear; another example is the aluminum alloy disclosed in the Chinese patent with publication number CN102360624. Although the creep resistance has been significantly improved, the ductility and fatigue resistance do not reflect the improvement effect very well, so There are still deficiencies in the overall performance of aluminum alloys; another example is the aluminum alloy disclosed in the Japanese patent document CN102119233A, which has been improved in strength and ductility, and has better proof stress and impact resistance, but fatigue resistance Performance and creep resistance are not improved

Method used

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  • Al-Mg aluminum alloy, preparation method thereof and aluminum alloy cable
  • Al-Mg aluminum alloy, preparation method thereof and aluminum alloy cable

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preparation example Construction

[0029] The present application also provides a method for preparing an Al-Mg aluminum alloy, comprising the following steps:

[0030] a) casting an aluminum alloy ingot with the following composition: 0.1-0.7wt% Mg and the balance aluminum;

[0031] b) performing solution treatment and aging treatment on the aluminum alloy ingot in sequence, and rolling the aluminum alloy ingot after aging treatment to obtain an aluminum alloy.

[0032] According to the present application, step a) is a casting process to obtain an aluminum alloy ingot. In order to fully melt each element and distribute it evenly in the aluminum alloy, the casting process specifically includes: aluminum ingots, magnesium ingots or aluminum ingots, aluminum ingots - Magnesium ingots, placed in a melting furnace and smelted at a temperature greater than or equal to 700°C to obtain an alloy melt, and then casting the alloy melt at a temperature below 680°C to obtain an aluminum alloy ingot.

[0033] After the al...

Embodiment 1

[0040] (1) Put aluminum ingots and aluminum-magnesium ingots into the melting furnace, heat them to 700°C to melt them, and let them stand for 30 minutes; then refine the above alloy melts in the furnace; add refining agent to the alloy melts, and stir Uniformity, then stand for 30 minutes, and the melt refining is operated in a sealed environment; after refining, slag, stand still, and adjust the temperature to 650°C, the alloy liquid is poured out of the furnace, and after degassing and slag removal, it enters the casting machine for Cast to obtain an aluminum alloy ingot, and the composition of the ingot is listed in Table 1;

[0041] (2) Solid solution treat the aluminum alloy ingot obtained in step (1) at 480°C, keep it warm for 40 minutes, then air cool it to room temperature, then perform aging treatment at 350°C, keep it warm for 2 hours; then roll the aged aluminum alloy system to obtain aluminum alloy.

[0042] The aluminum alloy prepared according to the above meth...

Embodiment 2

[0044] (1) Put aluminum ingots and aluminum-magnesium ingots into the furnace, heat them to 720°C to melt them, and let them stand for 30 minutes; then refine the above alloy melts in the furnace; add refining agents to the alloy melts, and stir Uniformity, and then stand for 30 minutes, melt refining operation in a sealed environment; after refining, slag, stand still, temperature adjustment to 660 ° C, the alloy liquid is poured out of the furnace, and after degassing and slag removal, it enters the casting machine for Cast to obtain an aluminum alloy ingot, and the composition of the ingot is listed in Table 1;

[0045] (2) Solid solution treat the aluminum alloy ingot obtained in step (1) at 500°C, keep it warm for 50 minutes, then air cool it to room temperature, then perform aging treatment at 400°C, keep it warm for 1 hour; then roll the aged aluminum alloy system to obtain aluminum alloy.

[0046] The aluminum alloy prepared according to the above method was tested fo...

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Abstract

The invention provides Al-Mg aluminum alloy. The invention additionally provides a preparation method of the Al-Mg aluminum alloy. The preparation method of the Al-Mg aluminum alloy comprises the steps of a) casting aluminum alloy ingots; b) sequentially performing solid solution treatment and aging treatment on the aluminum alloy ingots, and rolling the aluminum alloy ingots after the aging treatment to obtain the aluminum alloy. The invention additionally provides an aluminum alloy cable. By selecting and controlling added elements and by adopting a proper preparation process, the aluminum alloy is enabled to have better comprehensive performance.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to an Al-Mg aluminum alloy, a preparation method thereof and an aluminum alloy cable. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and it is widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of science and technology and industrial economy, the demand for aluminum alloys is increasing, so the research on aluminum alloys is also in-depth. The wide application of aluminum alloys has promoted the development of aluminum alloys in the power industry, and at the same time the development of the power industry has broadened the application fields of aluminum alloys. [0003] The basic component of the power industry - power cable, is a resource used to transmit and distribute electric energy. Its basic structure consists of four p...

Claims

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Application Information

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IPC IPC(8): C22C21/06C22C1/02C22F1/047H01B1/02
Inventor 林泽民
Owner ANHUI JOY SENSE CABLE
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