Aluminum Alloy Copper Salt Coloring Electrophoresis Process

An aluminum alloy and copper salt technology, which is applied in the field of aluminum alloy copper salt coloring electrophoresis technology, can solve the problems of hindering the anger of copper coloring electrophoresis alloy profiles, easy to appear color difference, etc., and achieve uniform and stable coloring, long sealing time, and salt spray resistance highly corrosive effect

Active Publication Date: 2017-08-25
GUANGDONG WEIYE ALUMINUM FACTORY GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, copper-colored electrophoretic alloy profiles have a special production process, which is prone to chromatic aberration problems during the production process, which in turn leads to production yields and hinders the further expansion of the vitality of copper-colored electrophoretic alloy profiles.

Method used

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  • Aluminum Alloy Copper Salt Coloring Electrophoresis Process
  • Aluminum Alloy Copper Salt Coloring Electrophoresis Process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Aluminum alloy copper salt coloring electrophoresis process is as follows:

[0048] S1 Oxidation pre-treatment: Prepare sulfuric acid bath, install the alloy profiles to be colored on the rack, the bath must be stirred in advance, and the models of the alloy profiles in the same row must be consistent.

[0049] S2 anodic oxidation step: put the alloy profile into a sulfuric acid bath and perform anodic oxidation to form an oxide film with film holes.

[0050] The current density of the sulfuric acid bath liquid that present embodiment adopts is 125A / dm 2 , the temperature of the sulfuric acid bath is 20°C.

[0051] S3 coloring step: put the anodized profile obtained in the S2 step into a copper salt electrolytic coloring tank for electrolytic coloring, and use copper wires to realize electrical connection.

[0052] Wherein, the bath solution of described copper salt electrolytic coloring tank contains copper sulfate pentahydrate and sulfuric acid, the concentration of...

Embodiment 2

[0060] Aluminum alloy copper salt coloring electrophoresis process is as follows:

[0061] S1 Oxidation pre-treatment: Prepare sulfuric acid bath, install the alloy profiles to be colored on the rack, the bath must be stirred in advance, and the models of the alloy profiles in the same row must be consistent.

[0062] S2 anodic oxidation step: put the alloy profile into a sulfuric acid bath and perform anodic oxidation to form an oxide film with film holes.

[0063] The current density of the sulfuric acid bath liquid that present embodiment adopts is 135A / dm 2 , the temperature of the sulfuric acid bath is 23°C.

[0064] S3 coloring step: put the anodized profile obtained in the S2 step into a copper salt electrolytic coloring tank for electrolytic coloring, and use copper wires to realize electrical connection.

[0065] Wherein, the bath solution of described copper salt electrolytic coloring tank contains copper sulfate pentahydrate and sulfuric acid, the concentration of...

Embodiment 3

[0073] Aluminum alloy copper salt coloring electrophoresis process is as follows:

[0074] S1 Oxidation pre-treatment: Prepare sulfuric acid bath, install the alloy profiles to be colored on the rack, the bath must be stirred in advance, and the models of the alloy profiles in the same row must be consistent.

[0075] S2 anodic oxidation step: put the alloy profile into a sulfuric acid bath and perform anodic oxidation to form an oxide film with film holes.

[0076] The current density of the sulfuric acid bath solution that present embodiment adopts is 130A / dm 2 , the temperature of the sulfuric acid bath is 22°C.

[0077] S3 coloring step: put the anodized profile obtained in the S2 step into a copper salt electrolytic coloring tank for electrolytic coloring, and use copper wires to realize electrical connection.

[0078] Wherein, the bath of described copper salt electrolytic coloring bath contains copper sulfate pentahydrate and sulfuric acid, the concentration of copper...

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Abstract

The invention discloses an aluminum alloy copper salt coloring electrophoresis process. The process comprises the following steps: (1) sulfuric acid groove liquid is prepared; and an alloy profile to be colored is mounted on a lifting frame; (2) the alloy profile is put in the groove liquid for anodically oxidized to generate a layer of oxide film with a film hole; (3) the anodically oxidized alloy profile is put in a copper salt electrolytic coloring groove for electrolytic coloring; (4) the colored alloy profile is sealed; (5) the residual groove liquid in the hole sealing process is washed by water; (6) the electrophoresis is performed for the alloy profile washed by the water; and (7) the alloy profile is cured after electrophoresis. The pH value of the hole sealing groove liquid is higher; the hole sealing distance is longer; a half hole sealing process is adjusted to a near all hole sealing process for preventing dissolving of copper; and the alloy profile is more stable after coloring, and is higher in corrosion resistance.

Description

technical field [0001] The invention relates to an aluminum alloy anodic oxidation surface treatment process, in particular to an aluminum alloy copper salt coloring electrophoresis process. Background technique [0002] With the development of the economy, people pay more and more attention to the diversification and personalization of decorative colors. Because of the advantages of fine and soft tones and bright and transparent bottom after electrophoresis, copper salt colored electrophoretic alloy profiles are used in high-end buildings one after another. Alloy doors and windows replace the original stainless steel doors and copper doors. Copper colored electrophoretic alloy profiles have become a new type of material that is favored in the construction aluminum alloy profile industry, with huge market potential. [0003] However, copper-colored electrophoretic alloy profiles have a special production process, and chromatic aberrations are prone to occur during the produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/08C25D11/22C25D11/18C25D13/00
CPCC25D11/08C25D11/18C25D11/22C25D13/00
Inventor 潘伟津
Owner GUANGDONG WEIYE ALUMINUM FACTORY GRP
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