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An aluminum alloy profile with good electrical conductivity and its processing method

A technology for aluminum alloy profiles and electrical conductivity, applied in the field of aluminum alloy profiles, can solve problems such as insufficient electrical conductivity, insufficient alloy grain uniformity and fineness, and achieve good mechanical properties, good air tightness, and easy production. Effect

Active Publication Date: 2017-11-21
仪征海天铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this alloy material, the uniformity and refinement of the formed alloy grains are insufficient, so that its electrical conductivity is still not good enough.

Method used

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  • An aluminum alloy profile with good electrical conductivity and its processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The first aluminum alloy profile with good electrical conductivity, the aluminum alloy profile includes components with the following mass content:

[0030] Mg 3%

[0031] Si 2%

[0032] Ni 0.2%

[0033] Sr 1%

[0034] La 0.47%

[0035] The balance is Al.

[0036] The processing method of the aluminum alloy profile with good electrical conductivity is carried out as follows:

[0037] 1) Weigh the material according to the following weight ratio,

[0038] Mg 3%

[0039] Si 2%

[0040] Ni 0.2%

[0041] Sr 1%

[0042] La 0.47%

[0043] The balance is Al;

[0044] Among them, Ni and La are converted into LaNiO 3 The weight of LaNiO 3 It is added to the composition as a raw material for smelting, so the molar ratio of Ni and La is 1:1; during metal processing, Al and Ni can form a Raney nickel alloy, which is chemically unstable. When the nickel content When it is high, it can spontaneously ignite in the air and has certain dangers. Through LaNiO 3 Ni and La a...

Embodiment 2

[0051] The second kind of aluminum alloy profile with good electrical conductivity, the aluminum alloy profile includes the following components by mass content:

[0052] Mg 5%

[0053] Si 3.5%

[0054] Ni 0.8%

[0055] Sr 1.5%

[0056] La 1.88%

[0057] The balance is Al.

[0058] The processing method of the aluminum alloy profile with good electrical conductivity is carried out as follows:

[0059] 1) Weigh the material according to the following weight ratio,

[0060] Mg 5%

[0061] Si 3.5%

[0062] Ni 0.8%

[0063] Sr 1.5%

[0064] La 1.88%

[0065] The balance is Al;

[0066] Among them, Ni and La are converted into LaNiO 3 The weight of LaNiO 3 It is added to the composition as a raw material for smelting, so the molar ratio of Ni and La is 1:1;

[0067] 2) Vacuum melting the above composition at 750°C;

[0068] 3) The smelted alloy material is subjected to solution treatment at 550°C for 3 hours; 4) The alloy material after solution treatment is processe...

Embodiment 3

[0072] The third kind of aluminum alloy profile with good electrical conductivity, the aluminum alloy profile includes components with the following mass content:

[0073] Mg 4%

[0074] Si 3%

[0075] Ni 0.6%

[0076] Sr 1.2%

[0077] La 1.41%

[0078]The balance is Al.

[0079] The processing method of the aluminum alloy profile with good electrical conductivity is carried out as follows:

[0080] 1) Weigh the material according to the following weight ratio,

[0081] Mg 4%

[0082] Si 3%

[0083] Ni 0.6%

[0084] Sr 1.2%

[0085] La 1.41%

[0086] The balance is Al;

[0087] Wherein, Ni and La are converted into LaNiO3 by weight, with LaNiO3 as raw material added to the composition for smelting;

[0088] 2) The above composition is vacuum smelted at 720°C; the smelting process is a process in which various materials are fused with each other, and it is also a purification process. The hydrogen originally stored in the aluminum can be precipitated and discharged,...

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Abstract

The invention relates to an aluminum alloy profile with good conductivity in the field of profiles. The aluminum alloy profile comprises the following components in percentage by mass: 3-5% of Mg, 2-3.5% of Si, 0.2-0.8% of Ni, 1-1.5% of Sr, 0.47-1.88% of La and the balance of Al. The aluminum alloy profile is prepared by the steps of weighing, smelting, solution treatment, extrusion moulding, cold drawing and artificial aging treatment. The aluminum alloy profile has good mechanical properties and conductivity and can be applied to various high-voltage power transmission and transformation equipment and is made into a bus or wire and has the advantages of high strength, good conductivity and easiness in production.

Description

technical field [0001] The invention relates to an aluminum alloy profile, in particular to an aluminum alloy profile with good electrical conductivity and a processing method thereof. Background technique [0002] As we all know, aluminum has good electrical and thermal conductivity, its electrical conductivity is second only to silver and copper, but the mechanical strength of pure aluminum is low, while the mechanical strength of aluminum alloy is better, but its electrical conductivity is often insufficient, electrical conductivity There is a big contradiction between aluminum alloy and mechanical strength, and it is difficult to obtain aluminum alloy materials with good mechanical strength, casting performance and electrical conductivity. [0003] In order to solve the contradiction between the mechanical properties and electrical conductivity of aluminum alloys, in the prior art, people have gone through a lot of attempts. An aluminum-copper-magnesium hard aluminum all...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08C22C21/02C22C1/02C22F1/047C22F1/043C22F1/05C21D9/08
CPCC21D9/08C22C1/026C22C21/02C22C21/08C22F1/043C22F1/047C22F1/05
Inventor 成卫兵房继业费恩花
Owner 仪征海天铝业有限公司
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