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Aluminum alloy surface treatment technique

A technology of aluminum alloy surface and treatment process, applied in the direction of pretreatment surface, device for coating liquid on the surface, coating, etc., can solve the problems of short service life, easy corrosion, easy oxidation of aluminum alloy, etc., and achieve improved gloss , prolong the service life, the effect of uniform aluminum alloy surface

Inactive Publication Date: 2018-05-11
SICHUAN QIXING ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the above technical problems, the present invention provides an aluminum alloy surface treatment process, thereby solving the previous technical problems of easy oxidation, corrosion and short service life of aluminum alloys

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0020] An aluminum alloy surface treatment process, comprising the following steps,

[0021] 1) Surface grinding: Grinding the surface of the aluminum alloy with a grinder, grinding off the burrs and bumps that appear in the aluminum alloy manufacturing, to ensure the uniformity of the aluminum alloy surface, and to avoid the sundries on the aluminum alloy from affecting the use;

[0022] 2) High-pressure gas flushing: the aluminum alloy that has been polished on the surface is subjected to high-pressure air jet flushing under the action of a high-pressure air gun, and the impurities in the surface lines of the aluminum alloy are flushed out;

[0023] 3) Surface oil treatment: Put the aluminum alloy washed by high-pressure gas into the sodium hydroxide solution at 50-60°C for 5-8 minutes to remove the oil on the surface of the aluminum alloy and prevent the aluminum alloy from mottle. The sodium hydroxide solution is hydrogen A mixture of sodium oxide and water in a mass ratio...

Embodiment 1

[0030] An aluminum alloy surface treatment process, comprising the following steps,

[0031] 1) Surface grinding: Grinding the surface of the aluminum alloy with a grinder, grinding off the burrs and bumps that appear in the aluminum alloy manufacturing, to ensure the uniformity of the aluminum alloy surface, and to avoid the sundries on the aluminum alloy from affecting the use;

[0032] 2) High-pressure gas flushing: the aluminum alloy that has been polished on the surface is subjected to high-pressure air jet flushing under the action of a high-pressure air gun, and the impurities in the surface lines of the aluminum alloy are flushed out;

[0033] 3) Surface oil treatment: Put the aluminum alloy washed by high-pressure gas into the sodium hydroxide solution at 50°C for 5 minutes to remove the oil on the surface of the aluminum alloy and prevent the aluminum alloy from mottling. The sodium hydroxide solution is sodium hydroxide and water The mixed solution is prepared accor...

Embodiment 2

[0040] An aluminum alloy surface treatment process, comprising the following steps,

[0041] 1) Surface grinding: Grinding the surface of the aluminum alloy with a grinder, grinding off the burrs and bumps that appear in the aluminum alloy manufacturing, to ensure the uniformity of the aluminum alloy surface, and to avoid the sundries on the aluminum alloy from affecting the use;

[0042] 2) High-pressure gas flushing: the aluminum alloy that has been polished on the surface is subjected to high-pressure air jet flushing under the action of a high-pressure air gun, and the impurities in the surface lines of the aluminum alloy are flushed out;

[0043] 3) Surface oil treatment: put the aluminum alloy washed by high-pressure gas into 55°C sodium hydroxide solution for 6.5 minutes to remove the oil on the surface of the aluminum alloy and prevent the aluminum alloy from mottle. The sodium hydroxide solution is sodium hydroxide and Water is a mixed solution with a mass ratio of 1:...

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PUM

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Abstract

The invention relates to an aluminum alloy surface treatment technique. The aluminum alloy surface treatment technique mainly comprises seven steps of aluminum alloy surface polishing, gas rinsing, surface oil treatment, dust and attachment treatment, cleaning treatment, painting treatment and air drying treatment; in surface oil treatment, an aluminum alloy is placed in a 50-60 DEG C sodium hydroxide solution to be treated for 5-8 min; in dust and attachment treatment, the deoiled aluminum alloy is placed in an acid solution to be treated for 4-6 min; and in painting treatment, the dried aluminum alloy is placed in a painting box and is painted, and paint is high-temperature-resistant and corrosion-resistant paint. The aluminum manufactured with the technique is antioxidant, corrosion-resistant and long in service life.

Description

technical field [0001] The invention relates to a surface treatment process, which belongs to the field of mechanical treatment. More specifically, the invention relates to an aluminum alloy surface treatment process. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of industrial economy, the demand for welded structural parts of aluminum alloy is increasing day by day, so that the research on weldability of aluminum alloy is also in-depth. Aluminum alloy is currently the most widely used alloy. [0003] However, the existing aluminum alloy surface treatment is too simple, and it is easy to oxidize in the process of encountering water, which will corrode the aluminum alloy, shorten the service life of the aluminum alloy, and affect its use effect. Therefore,...

Claims

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Application Information

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IPC IPC(8): B05D7/14B05D3/00B05D3/10
CPCB05D7/14B05D3/002B05D3/102B05D2202/25
Inventor 江明泓
Owner SICHUAN QIXING ELECTRONICS
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