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 p

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

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Example Embodiment

[0027] Example 1

[0028] Use the following steps to prepare aluminum alloy polished profiles:

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

[0030] You can use 80% (mass) of aluminum ingots and the remaining leftovers (the leftovers left after the aluminum rods are extruded by the extruder) to melt the aluminum liquid; then add silicon, magnesium and other alloys to it The ingredients are adjusted so that the mass content of the following chemical elements contained in the molten aluminum is Si 0.32~0.36%, 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 and slagging, the molten aluminum is allowed to stand and its composition is stable, then the molten aluminum is cast into aluminum rods.

[0031] (2) Extrusion: The aluminum rod cast in step 1 is fed into the extruder, the temperature of the aluminum rod is controlled to 450℃~470℃, and the temperature of t...

Example Embodiment

[0039] Example 2

[0040] Use the following steps to prepare aluminum alloy polished profiles:

[0041] (1) Melting and casting: basically the same as in Example 1, and will not be repeated;

[0042] (2) Extrusion: The aluminum rod cast in step 1 is sent to the extruder, the temperature of the aluminum rod is controlled to 460℃~480℃, and the temperature of the aluminum extrusion die in the extruder is controlled to 440~470℃ , The aluminum rod is extruded by an extruder to form an aluminum profile, the discharge temperature of the aluminum profile is about 490℃, and the wall thickness of the aluminum profile obtained by extrusion is about 2.0mm;

[0043] (3) Use a polishing machine to mechanically polish the aluminum profile;

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

[0045] (5) Dewaxing: At 60°C, use a solution with a wax dewaxing ...

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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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