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Aluminum alloy plate and preparation method thereof

A technology of aluminum alloy plate and aluminum liquid, which is applied in the direction of manufacturing tools, heat treatment equipment, TV, etc., can solve the problems of unable to meet the requirements of long-term operation of large-scale flat-panel TVs with high power, inconvenient portability, poor heat dissipation, etc., to eliminate Effects of microstructure anisotropy, elimination of internal stress, and improvement of formability

Pending Publication Date: 2021-06-29
ZHEJIANG YONGJIE ALUMINUM CO LTD +1
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Problems solved by technology

[0003] However, the traditional large (65 inches and above) flat-panel TV backplane metal plate adopts thin steel plate. Although the strength of the thin steel plate meets the requirements of the TV backplane, it is heavy and not easy to carry. Meet the long-running requirements of high-power large flat-panel TVs

Method used

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  • Aluminum alloy plate and preparation method thereof

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] Please combine figure 1 , the invention provides a method for preparing an aluminum alloy plate, the method for preparing the aluminum alloy plate comprises the following steps:

[0038] Step S1, according to the following components and mass percentages: Si≤0.16%, Fe≤0.24%, Cu≤0.05%, Mg2.45-2.65%, Mn≤0.05%, Cr 0.21-0.28%, Zn≤0.10%, Ti ≤0.15%, the balance is Al and unavoidable impurities; the melting and casting process uses semi-continuous casting to prepare ingots, specifically including:

[0039] Step S11...

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Abstract

The invention discloses an aluminum alloy plate and a preparation method thereof. The aluminum alloy plate comprises, by mass, less than or equal to 0.16% of Si, less than or equal to 0.24% of Fe, less than or equal to 0.05% of Cu, 2.45%-2.65% of Mg, less than or equal to 0.05% of Mn, 0.21%-0.28% of Cr, less than or equal to 0.10% of Zn, less than or equal to 0.15% of Ti and the balance Al and inevitable impurities. Through cast ingot chemical component design, complete recrystallization annealing and stable annealing process design, the structure anisotropy is eliminated, and the plate forming performance is improved; and internal stress caused in the small-machining-rate cold machining process is eliminated, and the failure softening phenomenon caused by poor stability of a solid solution when the solid solution is placed in the natural environment for a long time is avoided. Compared with the prior art, the aluminum alloy plate prepared through the method is flat in plate shape, excellent in surface quality, high in strength, easy to machine and form and capable of being applied to a back plate of a flat panel television.

Description

【Technical field】 [0001] The invention relates to the technical field of aluminum processing, in particular to an aluminum alloy plate used for manufacturing a back plate of a flat-panel TV and a preparation method thereof. 【Background technique】 [0002] The flat-panel TV industry is an important branch of the household appliance industry, and my country is a big consumer of household appliances. With the gradual development of flat-panel TVs towards larger size and thinner, more stringent challenges are posed to the raw materials of TV backplanes, especially the flatness and comprehensive mechanical properties of the boards are extremely stringent. [0003] However, the traditional large (65 inches and above) flat-panel TV backplane metal plate adopts thin steel plate. Although the strength of the thin steel plate meets the requirements of the TV backplane, it is heavy and not easy to carry. Meet the long-running requirements of large flat-panel TVs with high power. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/03C22F1/047C22F1/02C21D9/52B21C37/02H04N5/64
CPCB21C37/02C21D9/52C22C1/026C22C1/03C22C21/08C22F1/02C22F1/047H04N5/64
Inventor 汤波楷陈登斌章国华陈祚启孙春雷陈培显丁林江陈现德
Owner ZHEJIANG YONGJIE ALUMINUM CO LTD
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