Surface antiseptic treatment process for aluminum alloy plate

An aluminum alloy plate, anti-corrosion treatment technology, applied in metal material coating process, superimposed layer plating, coating and other directions, can solve the problems of low temperature resistance, poor corrosion resistance, poor weather resistance, etc., to prolong the service life, Improve the mechanical strength and enhance the effect of corrosion resistance

Inactive Publication Date: 2017-10-24
HEFEI WANZHIJING DOORS & WINDOWS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the protective film on the surface of the aluminum alloy plate has low mechanical strength, poor weather resistance, and poor corrosion resistance; the thickness of the coating formed by the process method is relatively thin, the adhesion to the aluminum alloy surface is low, the mechanical strength is not good, and most of them are not resistant to high temperature , the coating is easy to fall off in the corrosive medium, and the anti-corrosion effect is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A surface anticorrosion treatment process for an aluminum alloy plate, comprising the following steps:

[0025] (1) Pretreatment of the aluminum alloy plate: Soak the aluminum alloy plate in the alcohol solution of sodium hydroxide for 35 minutes, take it out and rinse it with clean water, sandblast and remove rust, put it into the acetone solution for ultrasonic cleaning for 50 minutes, and then use deionized Rinse with water and dry at 46°C; among them, the alcohol solution of sodium hydroxide is prepared from sodium hydroxide particles and 68% ethanol solution according to the mass ratio of 1:7. Control it at 5-15mm, control the blasting gas pressure at 0.5-0.8MPa, and control the blasting distance at 10-25cm.

[0026] (2) Arc spraying aluminum: Using an arc spray gun, using the arc as the heat source, heat the linear aluminum wire with a purity ≥ 99.6% to a molten state, and at the same time squeeze the air to blow the molten aluminum wire into a mist to form a rest...

Embodiment 2

[0030] A surface anticorrosion treatment process for an aluminum alloy plate, comprising the following steps:

[0031] (1) Pretreatment of the aluminum alloy plate: Soak the aluminum alloy plate in the alcohol solution of sodium hydroxide for 40 minutes, take it out and rinse it with clean water, sandblast and remove rust, put it into the acetone solution for ultrasonic cleaning for 48 minutes, and then use deionized Rinse with water and dry at 50°C; among them, the alcohol solution of sodium hydroxide is prepared from sodium hydroxide particles and 70% ethanol solution according to the mass ratio of 1:8. Control it at 5-15mm, control the blasting gas pressure at 0.5-0.8MPa, and control the blasting distance at 10-25cm.

[0032] (2) Arc spraying aluminum: Using an arc spray gun, using the arc as the heat source, heat the linear aluminum wire with a purity ≥ 99.6% to a molten state, and at the same time squeeze the air to blow the molten aluminum wire into a mist to form a rest...

Embodiment 3

[0036] A surface anticorrosion treatment process for an aluminum alloy plate, comprising the following steps:

[0037] (1) Pretreatment of the aluminum alloy plate: Soak the aluminum alloy plate in the alcohol solution of sodium hydroxide for 43 minutes, take it out and rinse it with clean water, sand blast and remove rust, put it into the acetone solution for ultrasonic cleaning for 52 minutes, and then use deionized Rinse with water and dry at 55°C; among them, the alcohol solution of sodium hydroxide is prepared from sodium hydroxide particles and 75% ethanol solution according to the mass ratio of 1:5. Control it at 5-15mm, control the blasting gas pressure at 0.5-0.8MPa, and control the blasting distance at 10-25cm.

[0038] (2) Arc spraying aluminum: Using an arc spray gun, using the arc as the heat source, heat the linear aluminum wire with a purity ≥ 99.6% to a molten state, and at the same time squeeze the air to blow the molten aluminum wire into a mist to form a res...

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Abstract

The invention discloses a surface antiseptic treatment process for an aluminum alloy plate. The surface antiseptic treatment process comprises four treatment steps of pretreatment, arc aluminising, inorganic film wrapping, and primer and finishing coat spraying for the aluminum alloy plate. By precise process parameter control, the mechanical strength, temperature resistance, weather resistance and corrosion resistance of a protective film on the surface of the aluminum alloy plate are obviously improved, a binding force between the protective film and a base body of aluminum alloy plate is high and is much higher than a national standard, and corrosion prevention for a long term and suitability for promotion and use are realized.

Description

technical field [0001] The invention relates to the technical field of metal plate anticorrosion, in particular to a surface anticorrosion treatment process of an aluminum alloy plate. Background technique [0002] Aluminum and aluminum alloys have low density, high specific strength, good welding performance, easy processing, and beautiful surface. At present, they have become the second largest metal materials for industrial use, second only to steel. Aluminum alloys are widely used in aerospace, food packaging, architectural decoration, electronic home appliances, transportation and other fields. In the prior art, the protective film on the surface of the aluminum alloy plate has low mechanical strength, poor weather resistance, and poor corrosion resistance; the thickness of the coating formed by the process method is relatively thin, the adhesion to the aluminum alloy surface is low, the mechanical strength is not good, and most of them are not resistant to high tempera...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C23C4/131C23C4/08C23C4/02C23C18/12C23C28/00
CPCC23C4/131C23C4/02C23C4/08C23C18/1216C23C18/1254C23C28/322C23C28/3455
Inventor武娟
OwnerHEFEI WANZHIJING DOORS & WINDOWS CO LTD