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Aluminum alloy oxidization liquid recovery and coloring groove compatible configuration system and process

A technology for configuring system and oxidizing liquid, applied in the field of aluminum product processing, can solve problems such as waste of tap water, and achieve the effects of improving quality, reducing labor intensity and improving recovery rate

Active Publication Date: 2018-06-08
FOSHAN SANSHUI XIONGYING INNOVATION CENT FOR ALUMINUM SURFACE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the prior art, tap water is used to defrost the ice machine, which wastes a lot of tap water

Method used

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  • Aluminum alloy oxidization liquid recovery and coloring groove compatible configuration system and process
  • Aluminum alloy oxidization liquid recovery and coloring groove compatible configuration system and process
  • Aluminum alloy oxidization liquid recovery and coloring groove compatible configuration system and process

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Embodiment Construction

[0075] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0076] 1. Theoretical basis for the recovery of aluminum ions and sulfuric acid in the anodizing solution

[0077] When the aluminum alloy is oxidized, according to formula (3), part of the oxide film is dissolved, and about 4Kg / T (400m2) of aluminum is dissolved into the sulfuric acid oxidation solution. Ammonium sulfate is added to this oxidizing solution, and the following reaction takes place:

[0078] Al 2 (SO 4 ) 3 +(NH 4 ) 2 SO 4 +12H 2 O=2NH 4 Al(SO 4 ) 2 ·12H2O↓(5)

[0079] Under the conditions of 160-200g / L sulfuric acid, containing aluminum and ammonium ions, ammonium aluminum sulfate NH 4 Al(SO 4 ) 2 12H 2 O crystallizes out, and the amount of residual aluminum ions is related to the crystallization temperature and time.

[0080] 2. Quantitative analysis of experimental results

[0081] Ta...

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Abstract

The invention discloses an aluminum alloy oxidization liquid recovery and coloring groove compatible configuration system. The aluminum alloy oxidization liquid recovery and coloring groove compatibleconfiguration system comprises an oxidization liquid collection system, an oxidization liquid treatment system, an oxidization liquid separation system and a water washing medicament interception andspraying system. The invention also discloses an aluminum alloy oxidization liquid recovery and coloring groove compatible configuration process, which comprises the steps of oxidization liquid collection, oxidization liquid treatment, oxidization liquid separation, recrystallization recovery spray cleaning, water washing medicine interception, cooling equipment crystal clearing and recrystallization cooling. By using the system and the process, aluminum ions and sulphuric acid in the oxidization liquid can be sufficiently recovered; liquid in a crystallizer can be cooled, so that the liquidcan be recrystallized; the recovery rate of the aluminum ions and sulphuric acid can be further improved; the quality of the recovered oxidization liquid is improved. A high-pressure atomization spraying groove uses pure water for spraying and cleaning an aluminum material; the cleaning effect can be further improved; the threatening of ammonium ions on the coloring groove can be avoided.

Description

technical field [0001] The invention relates to the technical field of aluminum product processing, in particular to an aluminum alloy oxidation solution recovery and coloring tank compatible configuration system and process. Background technique [0002] The aluminum alloy anodizing line slot layout in the prior art is as attached figure 1 shown. In the 10# tank anodic oxidation solution, the aluminum alloy with conductive surface is placed on the anode. Under the action of an external electric field, the process of forming an oxide film on the surface is called anodic oxidation, and the film produced is an anodic oxidation film or an electrochemical conversion film. The electrochemical oxide film is different from the natural oxide film. The oxide film has a stacked cell structure, each cell is a hexagonal cylinder, and its top is an arc-shaped and hexagonal star-shaped pore truncated surface. The oxide film has a two-layer structure, and the layer close to the base meta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/08C25D21/18C01F7/76
CPCC01F7/765C25D11/005C25D11/08C25D21/18
Inventor 熊映明
Owner FOSHAN SANSHUI XIONGYING INNOVATION CENT FOR ALUMINUM SURFACE TECH
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