阅读说明：本技术 铝合金材料及其制备方法和应用 (Aluminum alloy material and preparation method and application thereof ) 是由 任项生 王理栋 于 2019-01-15 设计创作，主要内容包括：本发明涉及一种铝合金材料及其制备方法和应用。一种铝合金材料的制备方法,包括步骤：将铝矿熔化后进行浇铸,得到铝胚；在500℃～560℃的条件下,将铝胚进行均匀化处理；在20℃～30℃的条件下,将均匀化处理后的铝胚进行冷轧处理；在350℃～500℃条件下,将冷轧后的铝胚进行退火处理,得到铝合金材料。该铝合金材料经过腐蚀处理具有多种碎花状图案,艺术观感强烈,同时还具有一定的时尚性,外观优美。(The invention relates to an aluminum alloy material and a preparation method and application thereof. A preparation method of the aluminum alloy material comprises the following steps: melting the aluminum ore, and then casting to obtain an aluminum blank; homogenizing the aluminum blank at 500-560 ℃; cold rolling the homogenized aluminum blank at 20-30 ℃; and annealing the cold-rolled aluminum blank at the temperature of 350-500 ℃ to obtain the aluminum alloy material. The aluminum alloy material has various flower-shaped patterns after being subjected to corrosion treatment, has strong artistic impression, also has certain fashionability and attractive appearance.)

1. The preparation method of the aluminum alloy material is characterized by comprising the following steps:

Melting the aluminum ore, and then casting to obtain an aluminum blank;

Homogenizing the aluminum blank at 500-560 ℃;

Cold rolling the homogenized aluminum blank at the temperature of 20-30 ℃;

And annealing the cold-rolled aluminum blank at 350-500 ℃ to obtain the aluminum alloy material.

2. The method for producing an aluminum alloy material according to claim 1, wherein the time for the homogenization treatment is 11 to 12 hours.

3. The method for producing an aluminum alloy material according to claim 1, wherein the time of the annealing treatment is 40 to 50 min.

4. The method of producing an aluminum alloy material according to claim 1, further comprising a step of subjecting the molten aluminum to a standing treatment before the step of casting the molten aluminum.

5. The method of producing an aluminum alloy material according to claim 4, further comprising a step of degassing the molten aluminum after the step of subjecting the molten aluminum to the standing treatment and before the step of casting the molten aluminum.

6. The method of producing an aluminum alloy material according to claim 5, further comprising a step of filtering the molten aluminum after the step of degassing the molten aluminum and before the step of casting the molten aluminum.

7. The method for producing an aluminum alloy material according to claim 1, wherein the casting temperature is 230 ℃ to 290 ℃.

8. The method for producing an aluminum alloy material according to claim 1, wherein the melting temperature is 600 ℃ or higher.

9. An aluminum alloy material produced by the method for producing an aluminum alloy material according to any one of claims 1 to 8.

10. The use of the aluminum alloy material produced by the method of producing an aluminum alloy material according to any one of claims 1 to 8 for producing an electronic product.

Technical Field

The invention relates to the technical field of materials, in particular to an aluminum alloy material and a preparation method and application thereof.

Background

With the increasing development of science and technology, 3C electronic products such as mobile phones, watches, computers and the like have penetrated into the public life and become an indispensable part of the daily life of people, and people pay more and more attention to the appearance texture of the electronic products while pursuing functions.

Aluminum alloy is the most used material for manufacturing 3C electronic products so far, and has become a green environmental-friendly structural material in the 21 st century because the aluminum alloy is easily recycled. However, the appearance of the traditional aluminum alloy material is uniform and cannot meet the increasing appearance requirements of people.

Disclosure of Invention

Based on the above, there is a need for a method for preparing an aluminum alloy material having a plurality of patterns with a flower shape after being subjected to corrosion treatment.

In addition, an aluminum alloy material and application thereof are also provided.

A preparation method of the aluminum alloy material comprises the following steps:

Melting the aluminum ore, and then casting to obtain an aluminum blank;

Homogenizing the aluminum blank at 500-560 ℃;

Cold rolling the homogenized aluminum blank at the temperature of 20-30 ℃;

And annealing the cold-rolled aluminum blank at 350-500 ℃ to obtain the aluminum alloy material.

The preparation method of the aluminum alloy material melts the aluminum ore and carries out casting treatment to obtain an aluminum blank; and then carrying out homogenization treatment, cold rolling treatment and annealing treatment on the aluminum blank in sequence to obtain the aluminum alloy material. The aluminum alloy material has various flower-shaped patterns after being subjected to corrosion treatment, has strong artistic impression, also has certain fashionability and attractive appearance.

In one embodiment, the time of the homogenization treatment is 11h to 12 h.

In one embodiment, the time of the annealing treatment is 40min to 50 min.

In one embodiment, before the step of casting the molten aluminum, a step of standing the molten aluminum is further included.

In one embodiment, after the step of subjecting the molten aluminum to the standing treatment and before the step of casting the molten aluminum, the method further comprises a step of degassing the molten aluminum.

In one embodiment, after the step of degassing the aluminum water and before the step of casting the aluminum water, a step of filtering the aluminum water is further included.

In one embodiment, the casting temperature is 230 ℃ to 290 ℃.

In one embodiment, the melting temperature is above 600 ℃.

The aluminum alloy material prepared by the preparation method of the aluminum alloy material.

The aluminum alloy material prepared by the preparation method of the aluminum alloy material is applied to preparing electronic products.

Drawings

FIG. 1 is an external view of the aluminum alloy material obtained in example 1 after corrosion treatment.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The method for preparing an aluminum alloy material according to an embodiment includes the steps of:

Step S110: and melting the aluminum ore to obtain molten aluminum.

Specifically, the melting temperature is 600 ℃ or higher, so that the aluminum ore is melted to form molten aluminum.

Specifically, aluminum ore is available from Shandong Innovative metals, Inc.

Step S120: and casting the molten aluminum to obtain an aluminum blank.

Specifically, the casting temperature is 230 ℃ to 290 ℃.

The method further includes a step of subjecting the molten aluminum to a standing treatment before the step of casting the molten aluminum.

After the step of standing the molten aluminum and before the step of casting the molten aluminum, the method further comprises the step of degassing the molten aluminum to remove air in the molten aluminum and avoid the bad phenomena of sand holes and the like during the forming of the aluminum blank.

After the step of degassing the aluminum water and before the step of casting the aluminum water, the method further comprises the step of filtering the aluminum water to filter impurities in the aluminum water, so as to ensure the quality of the aluminum billet.

Step S130: homogenizing the aluminum blank at 500-560 ℃.

Specifically, the time for the homogenization treatment is 11 to 12 hours.

Wherein, the homogenization treatment has the following functions:

1) The internal structure and performance of the aluminum alloy material are changed, so that the internal crystal structure is improved;

2) The mechanical property of the aluminum blank is fully improved, certain plasticity is ensured, the tensile strength and hardness of the aluminum alloy material are improved, and the cutting processability of the alloy is improved;

3) In the manufacturing process of the aluminum blank, the homogenization treatment can eliminate the internal stress caused by the low-temperature rapid molding of the aluminum blank;

4) The size and the structure of the aluminum blank are stabilized, and the phase change caused by high temperature is prevented and eliminated, so that the aluminum blank generates the phenomenon of volume expansion;

5) In the casting process of the aluminum blank, because the cooling speed is high, solidified metal chemical elements are not diffused in time, so that the distribution is not uniform, segregation is generated, the homogenization treatment can eliminate the segregation and needle-shaped structures, and the structure and mechanical property of the aluminum alloy material are improved.

Step S140: and cold rolling the homogenized aluminum blank at the temperature of 20-30 ℃.

The cold rolling treatment can plastically deform the aluminum blank, change the internal crystal structure of the original material, and prepare the aluminum alloy material for subsequent heat treatment forming, wherein the aluminum blank is in a thermodynamically unstable state.

Step S150: and annealing the cold-rolled aluminum blank at the temperature of 350-500 ℃ to obtain the aluminum alloy material.

Specifically, the annealing treatment time is 40-50 min, so that the aluminum alloy material is crystallized for the second time, coarse crystals are generated and are uniformly diffused, and the manufacturing of the crystal art aluminum alloy material is completed.

In the annealing process, the aluminum alloy material is changed in three stages of recovery, recrystallization and grain growth, and the structure and the performance of the aluminum alloy material are changed so as to improve the performance of the aluminum alloy material. Wherein, the recovery is an early stage of the structural property change of the cold deformation metal during annealing, and refers to a stage of the substructure and the property change generated before new undistorted crystal grains appear; recrystallization refers to a process in which distortion-free equiaxed new grains gradually replace deformed grains; the grain growth refers to the phenomenon that after recrystallization is finished, grains continue to grow and are swallowed along with the grains.

The aluminum alloy material prepared by the preparation method of the aluminum alloy material. The aluminum alloy material has the advantages of attractive appearance, light weight, high strength and high ductility.

The aluminum alloy material prepared by the preparation method of the aluminum alloy material is applied to preparing electronic products. Specifically, the electronic product is a 3C electronic product, such as a mobile phone, a computer, a watch, and the like.

The preparation method of the aluminum alloy material has the following advantages:

1) The preparation method of the aluminum alloy material melts the aluminum ore and carries out casting treatment to obtain an aluminum blank; and then carrying out homogenization treatment, cold rolling treatment and annealing treatment on the aluminum blank in sequence to obtain the aluminum alloy material. The aluminum alloy material has various flower-shaped patterns after being subjected to corrosion treatment, has strong artistic impression, also has certain fashionability and attractive appearance. In addition, the density of the aluminum alloy material is tested to be 2.75kg/m ³The following shows that the yield strength is more than 210MPa, the tensile strength is more than 235MPa, the hardness is more than 78HV, the elongation is 12 percent, and the aluminum alloy meets the quality requirement of the aluminum alloy. Therefore, the aluminum alloy material prepared by the preparation method of the aluminum alloy material has beautiful appearance Lighter weight, higher strength and better ductility.

2) The preparation method of the aluminum alloy material has the advantages of high efficiency and low cost, and the prepared aluminum alloy material has a very wide application prospect and is an ideal raw material for processing 3C metal appearance pieces.

3) The aluminum alloy material prepared by the preparation method of the aluminum alloy material has the appearance effects of ceramics and glass, and has the characteristics of easiness in processing, small deformation, good stability, corrosion resistance, wide application and the like.

The following are specific examples: