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High-weather-resistance aluminum alloy profile

An aluminum alloy profile, high weather resistance technology, applied in the field of metal material manufacturing, to achieve the effect of high safety and excellent tensile strength

Active Publication Date: 2015-10-07
浙江米皇新材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, multi-stage aging is a very complicated process. Each aluminum alloy with different formula needs different multi-stage aging.
[0004] The present invention aims to provide a new high-weather-resistant aluminum alloy profile production process. It is fully optimized from raw materials to process parameters. It is unexpectedly found that under the optimized parameters, excellent aluminum alloy profiles with high weather resistance and corrosion resistance can be produced. , very suitable for outdoor use, such a process has not been reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A production method of high weather resistance aluminum alloy profiles:

[0032] (1) Ingredients and melting:

[0033] Ingredients according to mass percentage: Zn 7%, Cu 1.5%, Fe 1%, Mn 3%, Mg 2%, Si 0.5%, Cr 0.2%, Ni 0.08%, Ti 0.03%, the rest is Al, smelting at 780°C for 6h , to obtain aluminum alloy melt;

[0034] (2) Casting:

[0035] Cast the obtained aluminum alloy solution at a temperature of 720°C and a casting speed of 70mn / min to form a cast rod, cut it into a short rod with a length of 600mm, remove the scale on its surface, and obtain an aluminum alloy ingot;

[0036] (3) Annealing:

[0037] Perform homogenizing annealing on the obtained aluminum alloy ingot at an annealing temperature of 460° C. for 25 hours;

[0038] (4) Two-step heat treatment:

[0039] The aluminum alloy ingot was placed in a resistance heating furnace for two-stage heating, the aluminum alloy ingot was heated to 350°C for 1 hour, and after air cooling, it was continued to be heated...

Embodiment 2

[0047] A production method of high weather resistance aluminum alloy profiles:

[0048] (1) Ingredients and melting:

[0049] Ingredients according to mass percentage: Zn 8.8%, Cu 0.8%, Fe 4%, Mn 2%, Mg 3%, Si 0.2%, Cr 0.8%, Ni 0.08%, Ti 0.03%, the rest is Al, smelting at 700°C for 8h , to obtain aluminum alloy melt;

[0050] (2) Casting:

[0051] Cast the obtained aluminum alloy solution at a temperature of 700°C and a casting speed of 85 mm / min to form a cast rod, cut into a short rod with a length of 500 mm, and remove the scale on its surface to obtain an aluminum alloy ingot;

[0052] (3) Annealing:

[0053] Perform homogenizing annealing on the obtained aluminum alloy ingot at an annealing temperature of 475° C. for 20 hours;

[0054] (4) Two-step heat treatment:

[0055] The aluminum alloy ingot was placed in a resistance heating furnace for two-stage heating, the aluminum alloy ingot was heated to 350°C for 1 hour, and after air cooling, it was continued to be hea...

Embodiment 3

[0063] A production method of high weather resistance aluminum alloy profiles:

[0064] (1) Ingredients and melting:

[0065] Ingredients according to mass percentage: Zn 7.3%, Cu 1.4%, Fe 2%, Mn 3%, Mg 2%, Si 0.4%, Cr 0.6%, Ni 0.08%, Ti 0.03%, the rest is Al, smelting at 710°C for 7h , to obtain aluminum alloy melt;

[0066] (2) Casting:

[0067] Cast the obtained aluminum alloy solution at a temperature of 715°C and a casting speed of 78mn / min to form a cast rod, cut it into a short rod with a length of 535mm, remove the scale on its surface, and obtain an aluminum alloy ingot;

[0068] (3) Annealing:

[0069] Perform homogenizing annealing on the obtained aluminum alloy ingot at an annealing temperature of 463° C. for 23 hours;

[0070] (4) Two-step heat treatment:

[0071] The aluminum alloy ingot was placed in a resistance heating furnace for two-stage heating, the aluminum alloy ingot was heated to 350°C for 1 hour, and after air cooling, it was continued to be heat...

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Abstract

The invention discloses a production method of a high-weather-resistance aluminum alloy profile. The method includes the steps of mixing and smelting, casting, annealing, heat treatment achieved through a two-step method, two-stage aging and air cooling of the aluminum alloy profile, and finally oxidization treatment, wherein in the step of mixing and smelting, mixing is carried out on raw materials, by mass percent, 7-8.8% of Zn, 0.8-1.5% of Cu, 1-4% of Fe, 2-3% of Mn, 2-3% of Mg, 0.2-0.5% of Si, 0.2-0.8% of Cr, 0.08% of Ni, 0.03% of Ti and the balance Al, the materials are smelted for 6-8 hours at high temperature to obtain an aluminum alloy solution; in the step of heat treatment achieved through the two-step method, aluminum alloy cast ingot obtained after treatment is extruded into the aluminum alloy profile through an aluminum alloy profile die. The aluminum alloy profile which is super resistant to weather and corrosion can be manufactured without spraying, energy conservation and environment protection are achieved, and safety performance is high.

Description

Technical field [0001] The present invention is the field of metal material manufacturing technology, which involves a high weather -resistant aluminum alloy profile and its production process. Background technique [0002] Aluminum alloy profile is a commonly used building material.Before the use of aluminum alloy profiles, in order to improve the anticorrosive performance of the profile and have a certain color decoration effect, the surface of the profile must be processed.Aluminum alloy profile products are divided into products such as oxidation coloring, spraying organic coatings and other products according to the surface treatment method.The oxidation color product is through the principle of anode oxidation and electrolytic color. A dense oxide film and electrolytic metal ions are formed on the surface of aluminum alloy profiles to show a certain color in the oxide film.Spray organic coating products are coated layer of organic coatings on the surface of the profile surf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C21/10C22F1/053
Inventor 陆新江吴金海李焰钟泉
Owner 浙江米皇新材股份有限公司
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