Self-luminous anodic oxidation process for aluminum or aluminum alloy, aluminum and aluminum alloy

A kind of anodizing and aluminum alloy technology, applied in anodizing and other directions, can solve the problems of dark appearance effect, failure to meet the requirements of end product appearance effect, excessive dirt, etc., and achieve the effect of adjustable color

Inactive Publication Date: 2016-07-20
SHENZHEN TINNO WIRELESS TECH
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the micro-arc oxidation process only uses the chemical reaction on the surface of aluminum or aluminum alloy after high pulse voltage to produce strontium aluminate luminescence, which is not suitable for mass production of aluminum or aluminum alloy, and the appearance color of micro-arc oxidation Uncontrollable, the appearance effect is generally dark and dirty, and it cannot meet the requirements of various end products for appearance effect

Method used

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  • Self-luminous anodic oxidation process for aluminum or aluminum alloy, aluminum and aluminum alloy
  • Self-luminous anodic oxidation process for aluminum or aluminum alloy, aluminum and aluminum alloy
  • Self-luminous anodic oxidation process for aluminum or aluminum alloy, aluminum and aluminum alloy

Examples

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Effect test

Embodiment 1

[0070] Embodiment 1: the self-luminous anodic oxidation process of aluminum or aluminum alloy workpiece, process such as figure 1 shown;

[0071] 100: Sulfuric acid anodizing process is used to form a porous aluminum oxide film on the surface of the aluminum or aluminum alloy workpiece substrate; the aluminum alloy workpiece is used as the anode, and the direct current is passed through the sulfuric acid electrolyte with a sulfuric acid concentration of 150-200g / L, and the voltage 11-13V, the current density is 0.8-1.0 ampere per square millimeter, the anodizing time is 40 minutes, and an 8-10μm thick porous aluminum oxide film is formed on the surface of the aluminum alloy workpiece;

[0072] 101: SrAl 2 o 4 :Eu 2+ 、Dy 3+ Disperse in acrylic resin at a mass ratio of 7:3 to form a luminescent material, and then use a 400-500 mesh screen to immerse the luminescent material into the gaps in the porous aluminum oxide film layer through the screen printing to form A layer of ...

Embodiment 2

[0075] Embodiment 2: the self-illumination anodizing process of aluminum or aluminum alloy workpiece, as figure 2 shown;

[0076] 200: mechanical polishing and sandblasting pretreatment

[0077] Mechanical polishing: first rough polishing and then fine polishing to remove burrs and other defects and dirt on the surface of aluminum or aluminum alloy;

[0078] Sandblasting: choose zirconia particles with sand numbers of 120#, 150#, 170#, and 205# for sandblasting, and the sandblasting gas pressure is 2.5-3.0KG (kg);

[0079] 201: A porous aluminum oxide film layer is formed on the surface of the aluminum or aluminum alloy workpiece substrate by sulfuric acid anodizing process; the aluminum alloy workpiece is used as the anode, and the direct current is passed through the sulfuric acid electrolyte with a sulfuric acid concentration of 150-200g / L, and the voltage 11-13V, the current density is 0.8-1.0 ampere per square millimeter, the anodizing time is 40 minutes, and an 8-10μm...

Embodiment 3

[0083] Embodiment 3: the self-illumination anodizing process of aluminum or aluminum alloy workpiece, as image 3 shown;

[0084] 300: Make the aluminum or aluminum alloy workpiece undergo the anodic oxidation pretreatment of acid degreasing, alkali washing, ash removal and neutralization, ultrasonic washing and chemical polishing in sequence;

[0085] Acidic degreasing: Use a mixed aqueous solution of phosphoric acid and sulfuric acid with a phosphoric acid content of 30g / L and a sulfuric acid content of 7g / L to soak and degrease aluminum or aluminum alloy workpieces for 5 minutes;

[0086] Alkali cleaning: Use a sodium hydroxide aqueous solution with a concentration of 40-55g / L for alkaline cleaning and etching reaction, and perform the etching reaction for 4 minutes at a temperature of 40-50°C;

[0087] Deashing and neutralization: use 20% by mass of nitric acid aqueous solution as the ash removal and neutralization bath to soak the aluminum alloy at room temperature for 2...

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Abstract

The invention relates to a self-luminous anodic oxidation process for aluminum or an aluminum alloy. A porous type aluminum oxide film layer is formed on the surface of an aluminum or aluminum alloy workpiece through the sulfuric acid direct-current anodic oxidation process, gaps of the porous type aluminum oxide film layer are filled with light-emitting materials in a physical filling manner, then the porous type aluminum oxide film layer is colored, and hole sealing is finally conducted, so reaction with other substances in air is isolated and the function and appearance effect that the aluminum or the aluminum alloy can emit light are achieved. The self-luminous anodic oxidation process is suitable for processes of all aluminum or aluminum alloy materials, capable of meeting requirements for appearance effects of various terminal products, controllable in color and suitable for batched production.

Description

technical field [0001] The present application relates to the technical field of battery packs, in particular to an aluminum or aluminum alloy self-luminous anodic oxidation process. Background technique [0002] Anodizing is the most commonly used surface treatment process for aluminum and aluminum alloys, but the currently commonly used anodizing methods cannot make aluminum or aluminum alloys achieve the function and appearance of light. [0003] The prior art has disclosed a method for preparing long-lasting luminescent ceramic film by micro-arc oxidation process on the surface of aluminum or aluminum alloy. Strontium acid long afterglow luminescent material, and then achieve the purpose of aluminum or aluminum alloy luminescence. However, the micro-arc oxidation process only uses the chemical reaction on the surface of aluminum or aluminum alloy after high pulse voltage to produce strontium aluminate luminescence, which is not suitable for mass production of aluminum o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/08C25D11/18
CPCC25D11/08C25D11/18
Inventor 陈颖董小林林圣
Owner SHENZHEN TINNO WIRELESS TECH
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