Aluminum alloy material and housing made of aluminum alloy material

• US 10,815,551 B2
• Filed: 06/08/2018
• Issued: 10/27/2020
• Est. Priority Date: 12/10/2015
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Wang, Yongxiang, Hu, Banghong
• Primary Examiner(s): Schleis, Daniel J.
• Application Number:
  US16/004,018
• Publication Number:
  US 20180320253A1
• Time in Patent Office: 872 Days
• Field of Search: None
• CPC Class Codes: C22C 21/10 with zinc as the next major constituent
• CPC Class Codes: Y10T 428/12764 Next to Al-base component

Abstract

An aluminum alloy material includes zinc whose mass percentage is from 4.5% to 12.0%, magnesium whose mass percentage is from 0.7% to 3.0%, copper whose mass percentage is less than or equal to 0.6%, titanium whose mass percentage is from 0.001% to 0.5%, boron whose mass percentage is from 0.00011% to 0.2%, manganese whose mass percentage is less than or equal to 0.01%, chromium whose mass percentage is less than or equal to 0.2%, zirconium whose mass percentage is less than or equal to 0.2%, silicon whose mass percentage is less than or equal to 0.3%, ferrum whose mass percentage is less than or equal to 0.3%, aluminum, and other inevitable impurities.

Claims

1. An aluminum alloy material comprising:

zinc whose mass percentage comprises from 7.3% to 8.5%;

magnesium whose mass percentage comprises from 1.2% to 1.5%;

copper whose mass percentage comprises from 0.005% to 0.03%;

titanium whose mass percentage comprises from 0.01% to 0.03%;

boron whose mass percentage comprises from 0.003% to 0.006%;

manganese whose mass percentage comprises from 0.001% to 0.015%;

chromium whose mass percentage comprises from 0.0008% to 0.004%;

zirconium whose mass percentage comprises less than or equal to 0.01%;

silicon whose mass percentage comprises from 0.03% to 0.06%;

ferrum whose mass percentage comprises from 0.04% to 0.12%; and

a balance comprises aluminum and inevitable impurities.

2. The aluminum alloy material of claim 1, wherein a ratio of the mass percentage of the zinc to the mass percentage of the magnesium comprises from three to seven.

3. The aluminum alloy material of claim 1, wherein a ratio of a mass fraction of the zinc to a mass fraction of the magnesium comprises from three to seven.

4. The aluminum alloy material of claim 1, wherein a ratio of mass of the zinc to mass of the magnesium comprises from three to seven.

5. An aluminum alloy material comprising:

zinc whose mass percentage comprises from 5.0% to 7.5%;

magnesium whose mass percentage comprises from 0.9% to 1.2%;

copper whose mass percentage comprises from 0.0001% to 0.006%;

titanium whose mass percentage comprises from 0.01% to 0.02%;

boron whose mass percentage comprises from 0.003% to 0.005%;

manganese whose mass percentage comprises from 0.001% to 0.005%;

chromium whose mass percentage comprises from 0.0005% to 0.002%;

zirconium whose mass percentage comprises less than or equal to 0.01%;

silicon whose mass percentage comprises from 0.03% to 0.06%;

ferrum whose mass percentage comprises from 0.04% to 0.12%; and

a balance comprises aluminum and inevitable impurities.

6. The aluminum alloy material of claim 5, wherein a ratio of the mass percentage of the zinc to the mass percentage of the magnesium comprises from three to seven.

7. The aluminum alloy material of claim 5, wherein a ratio of a mass fraction of the zinc to a mass fraction of the magnesium comprises from three to seven.

8. The aluminum alloy material of claim 5, wherein a ratio of mass of the zinc to mass of the magnesium comprises from three to seven.

9. An aluminum alloy material comprising:

zinc whose mass percentage comprises from 5.2% to 5.9%;

magnesium whose mass percentage comprises from 1.01% to 1.2%;

copper whose mass percentage comprises from 0.002% to 0.006%;

titanium whose mass percentage comprises from 0.01% to 0.02%;

manganese whose mass percentage comprises from 0.001% to 0.005%;

chromium whose mass percentage comprises from 0.0008% to 0.002%;

zirconium whose mass percentage comprises less than or equal to 0.01%;

silicon whose mass percentage comprises from 0.03% to 0.06%;

ferrum whose mass percentage comprises from 0.04% to 0.12%;

aluminum; and

inevitable impurities.

10. The aluminum alloy material of claim 9, wherein a ratio of the mass percentage of the zinc to the mass percentage of the magnesium comprises from three to seven.

11. The aluminum alloy material of claim 9, wherein a ratio of a mass fraction of the zinc to a mass fraction of the magnesium comprises from three to seven.

12. The aluminum alloy material of claim 9, wherein a ratio of mass of the zinc to mass of the magnesium comprises from three to seven.