Preparation method of 6xxx/7xxx aluminum alloy composite

A composite material and aluminum alloy technology, which is applied in the field of preparation of 6xxx/7xxx aluminum alloy composite materials, can solve the problems that the material strength and anodizing performance cannot be improved to an excellent level at the same time, are limited, and deteriorate the anodizing effect. Excellent anodizing effect, the effect of large application potential

Active Publication Date: 2018-08-14
广西南南铝加工有限公司
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  • Application Information

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Problems solved by technology

The single-material aluminum alloy prepared by the existing technology is limited by the characteristics of the material itself, that is, high strength needs to be achieved through high alloying, but high alloying will deteriorate the anodic oxidation effect, so the material strength and anodic oxidation performance cannot be improved at the same time to an excellent level

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  • Preparation method of 6xxx/7xxx aluminum alloy composite

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Effect test

Embodiment 1

[0031] A 6xxx / 7xxx aluminum alloy composite material, including a core layer alloy and a cladding layer alloy, the core layer alloy is a high-strength 7xxx aluminum alloy, and the mass percentages of each element in the core layer alloy are Si 0.06%, Fe 0.15%, Cu 1.35%, Mn0.06%, Mg 2.40%, Cr 0.25%, Zn 5.85%, Ti 0.02%, the balance is Al and unavoidable elements; the cladding layer alloy is 6xxx aluminum alloy with excellent anodic oxidation effect, cladding The mass percentage of each element in the layer alloy is Si0.45%, Fe 0.18%, Cu 0.07%, Mn 0.05%, Mg 0.75%, Cr 0.02%, Zn 0.03%, Ti 0.03%, the balance is Al and unavoidable element; the preparation method of the 6xxx / 7xxx aluminum alloy composite material, the operation steps are as follows:

[0032] (1) Preparation of core layer alloy and cladding layer alloy plates: the raw materials of the core layer alloy and cladding layer alloy prepared above are melted and cast respectively to obtain core alloy ingots and cladding layer...

Embodiment 2

[0042] A 6xxx / 7xxx aluminum alloy composite material, including a core layer alloy and a cladding layer alloy, the core layer alloy is a high-strength 7xxx aluminum alloy, and the mass percentages of each element in the core layer alloy are Si 0.40%, Fe 0.25%, Cu 1.65%, Mn0.30%, Mg 2.75%, Cr 0.22%, Zn 5.60%, Ti 0.03%, the balance is Al and unavoidable elements; the cladding layer alloy is 6xxx aluminum alloy with excellent anodic oxidation effect, cladding The mass percentage of each element in the layer alloy is Si0.35%, Fe 0.35%, Cu 0.02%, Mn 0.03%, Mg 0.55%, Cr 0.1%, Zn 0.03%, Ti 0.03%, the balance is Al and unavoidable element; the preparation method of the 6xxx / 7xxx aluminum alloy composite material, the operation steps are as follows:

[0043] (1) Preparation of core layer alloy and cladding layer alloy plates: the raw materials of the core layer alloy and cladding layer alloy prepared above are melted and cast respectively to obtain core alloy ingots and cladding layers...

Embodiment 3

[0053] A 6xxx / 7xxx aluminum alloy composite material, comprising a core layer alloy and a cladding layer alloy, the core layer alloy is a high-strength 7xxx aluminum alloy, and the mass percentages of each element in the core layer alloy are Si 0.20%, Fe 0.25%, Cu 1.2%, Mn0.06%, Mg 2.1%, Cr 0.28%, Zn 6.1%, Ti 0.20%, the balance is Al and unavoidable elements; the cladding layer alloy is 6xxx aluminum alloy with excellent anodic oxidation effect, including The mass percentage of each element in the cladding alloy is Si 0.6%, Fe 0.08%, Cu 0.10%, Mn 0.10%, Mg 0.45%, Cr 0.02%, Zn 0.03%, Ti 0.03%, the balance is Al and unavoidable element; the preparation method of the 6xxx / 7xxx aluminum alloy composite material, the operation steps are as follows:

[0054] (1) Preparation of core layer alloy and cladding layer alloy plates: the raw materials of the core layer alloy and cladding layer alloy prepared above are melted and cast respectively to obtain core alloy ingots and cladding lay...

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Abstract

The invention discloses a 6xxx/7xxx aluminum alloy composite. The 6xxx/7xxx aluminum alloy composite comprises a core layer alloy and a coating layer alloy. A preparation method of the 6xxx/7xxx aluminum alloy composite comprises the steps that (1) preparation of the core layer alloy and the coating layer alloy plates is carried out; (2) surface treatment is carried out; (3) welding fixing is carried out; (4) preheating and hot rolling are carried out; (5) a cutting plate is transversely cut; (6) solution hardening is carried out; (7) stretching is carried out; (8) aging is carried out; and (9) saw cutting is carried out, and thus the finished 6xxx/7xxx aluminum alloy composite is obtained. The 6xxx/7xxx aluminum alloy composite is prepared by a rolling complex mode, and technologies of the solution hardening and the aging are limited at the same time, so that the 6xxx/7xxx aluminum alloy composite obtains high strength, has the characteristic of an excellent anodic oxidation effect, can meet the requirement of a high-end electronic product on the appearance and strength, is an ideal material for manufacturing an appearance piece of the electronic product and has very high utilization potentiality.

Description

technical field [0001] The invention relates to a preparation method of an aluminum alloy composite material, in particular to a preparation method of a 6xxx / 7xxx aluminum alloy composite material. Background technique [0002] The appearance parts of electronic products require materials to have the characteristics of high strength, scratch resistance, good thermal conductivity, and outstanding appearance, in order to achieve the functions of protection, heat dissipation, and aesthetics. With its advantages of light weight, high formability, good heat dissipation, and bright and beautiful surface oxidation treatment, aluminum alloy materials are gradually replacing steel as the material of choice for the appearance and structural parts of 3C electronic products such as mobile phones, tablet computers, and notebook computers. At present, the aluminum alloys that are most concerned by the 3C industry are 7xxx series and 6xxx series. Among them, the 7xxx series aluminum alloys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/10C22C21/08C22C21/02C22F1/053C22F1/047C22F1/043C22F1/05
CPCC22C21/02C22C21/08C22C21/10C22F1/002C22F1/043C22F1/047C22F1/05C22F1/053
Inventor 莫肇月邓松云朱玉涛刘莹柳华炎曹宇莫灼强姜文平
Owner 广西南南铝加工有限公司
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