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Aluminum alloy plate

An aluminum alloy plate, quality technology, applied in the field of aluminum alloy plate, can solve the problems of small contrast, not to mention excellent design, and achieve the effect of excellent design

Inactive Publication Date: 2018-01-30
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] As a result, the technology of Patent Document 1 shows that the contrast between crystal grains on the surface of the board is small, and it cannot be said that the designability is excellent.

Method used

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  • Aluminum alloy plate
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no. 1 approach

[0101] (Manufacturing method of the aluminum alloy plate of the first embodiment)

[0102] The aluminum alloy plate of the present invention is produced by performing a casting process, a homogenization heat treatment process, a hot rolling process, a first cold rolling process, an intermediate annealing process, a second cold rolling process, and a final annealing process.

[0103] Moreover, the aluminum alloy plate of this invention can also be manufactured by performing a surface treatment process after a final annealing process.

[0104] Hereinafter, the above-mentioned respective steps will be mainly described.

[0105] (casting process)

[0106] In the casting process, the aluminum alloy having the above-mentioned composition is melted, cast by a known casting method such as DC casting, cooled to a temperature lower than the solidus temperature of the aluminum alloy, and becomes a predetermined thickness (for example, about 400 to 600 mm). ) ingots.

[0107] (Homogeni...

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Abstract

The object of the invention is to provide an aluminium alloy plate which enables grain figures with a large grain size to be displayed on a plate surface, and has excellent design of bright contrast between the grains. The aluminium alloy plate is characterized by comprising 2.0-6.0 mass% of Mg, 0.01-0.20 mass% of Mn + Cr, less than 0.20 mass% of Fe, less than 0.1 mass% of Si, and balance of Al and inevitable impurities. The average grain diameter of the plate surface is 1-10mm, and the Cube orientation distribution density on the plate surface is less than 20 relative to the random orientation.

Description

technical field [0001] This invention relates to an aluminum alloy plate, Specifically, It is related with the aluminum alloy plate excellent in design property. Background technique [0002] Aluminum alloy sheets used in various industrial fields have intensively studied mechanical properties such as tensile strength, yield strength, elongation, and bending workability in order to satisfy the quality required for the target product. [0003] In addition, the mechanical properties of the aluminum alloy sheet are extremely important because it affects the quality of the product. Designability, which affects the purchase enthusiasm of customers, is also considered to be an important matter under the condition that the mechanical properties are not bad. [0004] Therefore, the following techniques have been proposed as techniques for improving the designability of the aluminum alloy plate. [0005] For example, in Patent Document 1, there is proposed an aluminum alloy raw mate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08
Inventor 金田大辅小林一德服部伸郎阿部智子
Owner KOBE STEEL LTD