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High-brightness aluminum-alloy polishing section and production process thereof

A production process and technology of aluminum profiles, applied in anodizing, electrolytic coatings, surface reaction electrolytic coatings, etc., can solve the problems of difficult research and development, low surface brightness of profiles, and difficult brightness of 6463 aluminum alloy profiles, and achieve surface corrosion. The effect of fewer defects

Inactive Publication Date: 2014-03-19
台澳铝业(台山)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the magnesium content of 5050 aluminum alloy profiles is 1.2-1.24%, it is very difficult to achieve the brightness of 6463 aluminum alloy profiles
In the development process, there are technical problems such as difficult research and development and low surface brightness of profiles.

Method used

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  • High-brightness aluminum-alloy polishing section and production process thereof
  • High-brightness aluminum-alloy polishing section and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The aluminum alloy polished profile is prepared by the following steps:

[0029] (1) Melting and casting: smelting molten aluminum and casting the molten aluminum into aluminum rods;

[0030] You can put 80% (mass) of aluminum ingots and the remaining scraps (the scraps left after the aluminum rods are extruded by the extruder) in the melting furnace to melt the aluminum liquid; then add alloys such as silicon and magnesium to it The composition is adjusted so that the mass content of the following chemical elements contained in the molten aluminum obtained from smelting is Si0.32-0.36%, Mg1.2-1.24%, Fe≤0.18, Zn≤0.1, Cu0.04-0.07%, Mn≤ 0.03%, Cr ≤ 0.005%, Ti ≤ 0.05%, Sn ≤ 0.003%, Pb ≤ 0.001%; ​​after refining, slag removal, after the molten aluminum is allowed to stand and its composition is stable, the molten aluminum is cast into aluminum rods.

[0031] (2) Extrusion: Send the aluminum rod cast in step 1 into the extrusion machine, the temperature of the aluminum rod ...

Embodiment 2

[0040] The aluminum alloy polished profile is prepared by the following steps:

[0041] (1) Melting and casting: it is basically the same as that of Example 1, and will not be described in detail;

[0042] (2) Extrusion: Send the aluminum rod cast in step 1 into the extrusion machine, the temperature of the aluminum rod is controlled at 460°C-480°C, and the temperature of the aluminum profile extrusion die in the extrusion machine is controlled at 440-470°C , the aluminum rod is extruded by an extrusion machine to form an aluminum profile, the discharge temperature of the aluminum profile is about 490 ° C, and the wall thickness of the extruded aluminum profile is about 2.0 mm;

[0043] (3) Mechanically polish the aluminum profile with a polishing machine;

[0044] (4) Degreasing: At room temperature, use a solution of 8% AC degreasing agent in the degreasing tank to degrease the aluminum profile, and the treatment time is 1 to 2 minutes;

[0045] (5) Wax removal: Under the ...

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Abstract

The invention provides a high-brightness aluminum-alloy polishing section and a production process thereof. The production process comprises the steps of (1) casting; (2) extruding; (3) mechanically polishing; (4) deoiling; (5) dewaxing: dewaxing the aluminum section by utilizing a solution with the dewaxing agent concentration of 15g / L to 25g / L for 5min to 6min; (6) chemically polishing; (7) emitting the light: soaking the chemically-polished aluminum section for 0.5min to 3min at the room temperature by utilizing a solution with the nitric acid concentration of 2g / L to 50g / L; (8) anode oxidizing: carrying out anode oxidation on the aluminum section for 30min to 38min under the condition that the temperature is 16 to 20 DEG C and the voltage is 10V to 11V by utilizing a solution with the sulfuric acid concentration of 110g / L to 130g / L and the Al<3+> concentration of 10g / L to 15g / L; (9) sealing pores: executing the cold-seal treatment in a cold sealing groove, and then executing the hot-seal treatment in a hot sealing groove. The aluminum section produced by adopting the process is excellent in surface brightness.

Description

technical field [0001] The invention relates to an aluminum alloy polished profile and a production process thereof, in particular to a high-gloss aluminum alloy polished profile and a production process thereof. Background technique [0002] Due to its low density, high specific strength, easy processing, castability, and no low-temperature brittleness, aluminum profiles are widely used in many fields such as automobiles, aerospace, architectural decoration, home appliances, instruments, computers, and mobile phones. It has become the metal structural material second only to steel in consumption. Due to the process of aluminum alloy processing and forming, mechanical damage is prone to occur, resulting in surface defects such as scratches and wear. Moreover, with the improvement of people's living standards and the needs of scientific and technological progress, people have also put forward higher requirements for the brightness of aluminum profiles. [0003] In addition,...

Claims

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Application Information

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IPC IPC(8): C23F3/03C25D11/08C25D11/16C25D11/18C23F17/00
Inventor 雷文伟
Owner 台澳铝业(台山)有限公司
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