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Oxidation process of aluminum alloy titanium-color-imitated anode

An anodic oxidation and aluminum alloy technology, applied in the direction of anodic oxidation, coating, surface reaction electrolytic coating, etc., can solve the problems of poor surface color quality, complicated process steps, poor corrosion resistance, etc., to achieve smooth and bright surface, The process steps are simple and the effect of reducing production costs

Active Publication Date: 2013-09-04
JIANGSU HEXING AUTOMOTIVE TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Generally, the traditional anodic oxidation coloring can only obtain a single coloring effect, and in order to make the appearance of the anodized surface look good, it is usually necessary to add titanium element during anodic oxidation, but the manufacturing cost of this method is relatively high, so in order to make the surface after anodic oxidation The appearance is titanium-like, and people have adopted various methods to achieve it, but there are many problems in the anodizing of the existing methods, not only the process steps are complicated, the surface color quality is poor, the adhesion is not good, it is not dense, and there are pores on the surface, etc. Defects, poor durability, poor corrosion resistance, etc.

Method used

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  • Oxidation process of aluminum alloy titanium-color-imitated anode

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Embodiment 1

[0039] Such as figure 1As shown, the aluminum alloy imitates the titanium color anodizing process, and the treatment is carried out according to the following steps: 1. Wax removal: put the aluminum alloy workpiece into the wax removal solution and treat it for 180 seconds at a temperature of 60°C under the condition of supersonic waves. The concentration of the wax solution is 130g / l; the wax removal solution is composed of a concentration of 30g / l sulfuric acid, 20g / l phosphoric acid, 25g / l nitric acid, 5g / l sorbitol, 5g / l acetic acid, 15g / l ammonium hydrogen fluoride and the balance of water Composition; 2. Tap water washing twice: wash the aluminum alloy workpiece after dewaxing at normal temperature for 10 seconds for the first time, and then wash for 180 seconds for the second time; 3. Degreasing: put the aluminum alloy workpiece after washing in a degreasing In the oil solution, the temperature is 60°C for 180 seconds under the condition of external ultrasonic wave; the...

Embodiment 2

[0041] The aluminum alloy imitation titanium color anodic oxidation process of the present embodiment 2 is processed according to the following steps: 1. Wax removal: put the aluminum alloy workpiece into the wax removal solution and process it for 180 seconds at a temperature of 70° C. under the condition of supersonic waves. The concentration of the wax removal solution is 200g / l; the wax removal solution is composed of 45g / l sulfuric acid, 40g / l phosphoric acid, 35g / l nitric acid, 10g / l sorbitol, 10g / l acetic acid, 22g / l ammonium hydrogen fluoride and the balance Water composition; 2. Tap water washing twice: wash the aluminum alloy workpiece after wax removal at room temperature for 10 seconds for the first time, and then wash for 180 seconds for the second time; 3. Degreasing: put the aluminum alloy workpiece after washing in water In the degreasing solution, the temperature is 70°C for 180 seconds under the condition of external ultrasonic wave; the degreasing solution is...

Embodiment 3

[0043]The third embodiment is processed according to the following steps: 1. Wax removal: put the aluminum alloy workpiece into the wax removal solution and treat it for 180 seconds at a temperature of 65° C. under the condition of external ultrasonic waves, and the concentration of the wax removal solution is 170 g / l; The wax removal solution is composed of 35g / l sulfuric acid, 30g / l phosphoric acid, 30g / l nitric acid, 7g / l sorbitol, 7g / l acetic acid, 18g / l ammonium hydrogen fluoride and the remaining water; 2. Wash twice with tap water: At room temperature, wash the aluminum alloy workpiece after wax removal for 10 seconds for the first time, and then wash it for 180 seconds for the second time; Treat at 65°C for 180 seconds; the degreasing solution is composed of sodium carbonate, sodium phosphate and surfactant, the concentration of sodium carbonate is 500g / l, the concentration of sodium phosphate is 725g / l, the concentration of surfactant is 30g / l, and the concentration of...

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Abstract

The invention belongs to the technical field of surface treatment and provides an oxidation process of an aluminum alloy titanium-color-imitated anode. The oxidation process is used for manufacturing a titanium-color-imitated aluminum alloy workpiece by the steps including wax-removing, water-washing, oil-removing, electrolytic polishing, stripping, ash-removing, oxidizing, electrolytic coloring, cold-sealing, coloring adjustment, hot-sealing, drying and the like. The oxidation process of the aluminum alloy titanium-color-imitated anode has the advantages that the whole process is green, environment-friendly and safe; each process step is simple; the yield and the qualification rate are improved; the production cost is lowered; the maintenance is easy; the treated aluminum alloy workpiece surface has a titanium-color-imitated color, a smooth and bright surface, a uniform color without mixed color; and an oxidation film and a base body are firmly combined, so that the surface hardness is higher and the corrosion resistance is good.

Description

technical field [0001] The invention belongs to the technical field of surface treatment and relates to an anodic oxidation process of an aluminum alloy imitating titanium color. Background technique [0002] Aluminum and its alloys have the advantages of high strength, good thermal and electrical conductivity, beautiful color, non-magnetic, corrosion resistance, good plasticity and formability, and no low-temperature brittleness. They are non-ferrous metal materials with excellent properties. At present, aluminum and its alloys have been widely used in aerospace, construction, automobile, mechanical performance and civil decorative hardware. However, some properties of aluminum are not ideal, such as surface properties such as hardness, wear resistance and corrosion resistance. In order to overcome the shortcomings of aluminum alloy surface performance, and also to improve protection, decoration and functionality, anodic oxidation in aluminum surface technology is the most...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/04C25D11/22C25D11/16C25D11/18
Inventor 邢程康齐正
Owner JIANGSU HEXING AUTOMOTIVE TECH
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