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Aluminum alloy and preparation method thereof

A technology of aluminum alloy and aluminum alloy ingot casting, which is applied in the field of non-ferrous metals to achieve good anodic oxidation effect, bright and uniform surface color, and good mechanical properties

Inactive Publication Date: 2018-08-03
GUANGDONG HONGKING NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an aluminum alloy and its preparation method in view of the technical problem that the existing aluminum alloy materials for the appearance parts of electronic products have good mechanical properties and anodic oxidation effect at the same time

Method used

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  • Aluminum alloy and preparation method thereof

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[0029] In the preparation method of the aluminum alloy of the present invention, by adjusting the content of strengthening elements Mg, Si and Cu, the mechanical properties of the aluminum alloy are good and the anodic oxidation effect is good, and the surface color of the aluminum alloy is bright and uniform. Further, through the above-mentioned preparation method of aluminum alloy, the content and distribution of intermetallic compounds can be fully controlled, so that the aluminum alloy can obtain better mechanical properties and anodic oxidation effect.

[0030] The aluminum alloy raw materials mentioned in the present invention can be various pure metal ingots or alloy ingots containing Al, Mg, Mn, Cr, Ti, Si, Fe and Cu, without any particular limitation, as long as each group of the present invention can be obtained The mass percentage range of points is sufficient. There is no particular limitation on the method of making an aluminum alloy ingot from an aluminum alloy r...

Embodiment 1

[0036] The composition of aluminum alloy is calculated by mass percentage: Mg 0.50wt%, Si 1.20wt%, Cu 0.80wt%, Mn0.30wt%, Cr 0.20wt%, Ti 0.05wt%, Fe 0.15wt%;

[0037] According to the mass percentage of the above-mentioned aluminum alloy composition, calculate the quality of various master alloys or metal elements, and make aluminum alloy ingots from various master alloys or metal elements; ≤±15°C), heat preservation for 20 hours for homogenization annealing treatment; then place the uniformly annealed aluminum alloy ingot in an extruded rod and extrude it into an extruded material, the temperature of the extruded rod is 480°C, extruded The speed was 8 m / min, and the temperature of the extruded material was 500°C when it came out from the exit of the extruded rod; finally, it was kept at 170°C for 24 hours for aging treatment, and an aluminum alloy was prepared.

Embodiment 2

[0039] The composition of the aluminum alloy is calculated by mass percentage: Mg 1.20wt%, Si 0.45wt%, Cu 0.30wt%, Mn0.15wt%, Cr 0.10wt%, Ti 0.02wt%, Fe 0.12wt%;

[0040] According to the mass percentage of the above-mentioned aluminum alloy composition, the mass of various intermediate alloys or metal elements required is calculated, and various intermediate alloys or metal elements are made into aluminum alloy ingots; then the aluminum alloy ingots are heated at 590 ° C (temperature uniformity ≤±10°C), heat preservation for 5 hours for homogenization annealing treatment; then place the uniformly annealed aluminum alloy ingot in an extruded rod and extrude it into an extruded material, the temperature of the extruded rod is 540°C, extruded The speed was 8 m / min, and the temperature of the extruded material was 550°C when it came out of the exit of the extruded rod; finally, it was kept at 200°C for 12 hours for aging treatment, and an aluminum alloy was prepared.

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Abstract

The invention belongs to the technical field of nonferrous metals and relates to an aluminum alloy and a preparation method thereof. The aluminum alloy comprises the following components in percentageby weight: more than or equal to 0.50% and less than or equal to 1.20% of Mg, more than or equal to 0.45% and less than or equal to 1.20% of Si, more than 0% and less than or equal to 0.80% of Cu, more than 0% and less than or equal to 0.30% of Mn, more than 0% and less than or equal to 0.20% of Cr, more than 0% and less than or equal to 0.05% of Ti, and more than 0% and less than or equal to 0.15% of Fe. According to the aluminum alloy, the contents of elements such as Mg, Si and Cu are adjusted and enhanced, so that the aluminum alloy is excellent in mechanical property and excellent in anodic oxidation efficiency, and the surface color of the aluminum alloy is bright and uniform.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metals, in particular to an aluminum alloy and a preparation method thereof. Background technique [0002] Aluminum alloy is an alloy composed of aluminum and other elements. It has the advantages of small specific gravity, high strength, corrosion resistance, good electrical and thermal conductivity, environmental protection and recyclability, and has become one of the most widely used materials in daily life. [0003] 6063 aluminum alloy material is widely used in the manufacture of appearance parts of electronic products due to its good anodic oxidation effect. However, due to the low mechanical properties of the 6063 aluminum alloy material, when the appearance parts of electronic products have higher requirements on the mechanical properties of the aluminum alloy, the 6063 aluminum alloy material cannot meet the application needs of its mechanical properties. The mechanical properties of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C21/02C22C21/14C22C21/16C22F1/047C22F1/057C22F1/05
Inventor 钟皓杨仲彬杨达彬
Owner GUANGDONG HONGKING NEW MATERIALS TECH CO LTD
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