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Preparation method of golden film

A thin film and golden technology, applied in electrolytic coating, surface reaction electrolytic coating, anodic oxidation, etc., can solve the problems of difficult to achieve ideal golden appearance, reddish color, low surface gloss, etc., and achieve pure color and good antibacterial effect , high gloss effect

Active Publication Date: 2021-02-02
JOMOO KITCHEN & BATHROOM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing aluminum alloy products using the two-acid process are oxidized into a gold film, the surface gloss of the product is low (the surface gloss of the golden yellow sample is less than 150), and the color is reddish, it is difficult to achieve the ideal golden appearance

Method used

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  • Preparation method of golden film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation method step of the golden thin film of embodiment 1 is:

[0026] 1. Speed ​​gradient mechanical polishing

[0027] ① Perform low-speed mechanical polishing on the surface of the aluminum alloy blank workpiece, the speed is 1000r / min, and the time is 5min;

[0028] ②Then perform medium-speed mechanical polishing on the workpiece after low-speed polishing, the speed is 2000r / min, and the time is 10min;

[0029] ③Finally, perform high-speed mechanical polishing on the workpiece after medium-speed polishing, with a rotation speed of 3000r / min and a time of 15 minutes;

[0030] Through the setting of gradient mechanical polishing, as the rotation speed and polishing time increase, the oxide film naturally formed on the surface of the aluminum alloy substrate will be gradually peeled off, and the roughness of the substrate surface will become smaller and smaller, which can effectively improve the surface gloss of the film .

[0031] 2. Degreasing treatment ...

Embodiment 2

[0051] The preparation method of the golden thin film of Example 2 is basically the same as that of Example 1, the difference is that in the gold dyeing process, the dyeing time is changed, and the dyeing time is 15 minutes.

Embodiment 3

[0053]The preparation method of the golden thin film of Example 3 is basically the same as that of Example 1, the difference is that in the gold dyeing process, the dyeing time is changed, and the dyeing time is 20 minutes.

[0054] The obtained golden thin film is evenly formed, and the copper particles are dispersed and distributed.

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Abstract

The invention discloses a preparation method of a golden film. The preparation method comprises the following steps of sequentially carrying out mechanical polishing, chemical polishing, anodic oxidation treatment, alternating-current electrolytic dyeing treatment and hole sealing treatment on an aluminum alloy workpiece, wherein the alternating-current electrolytic dyeing treatment is voltage gradient rising multi-time dyeing treatment; and a dye solution contains 0.3-0.8 g / L of alizarin yellow R, 0.5-1.2 g / L of alizarin red S, 4-7g / L of potassium permanganate, 20-25g / L of sulfuric acid and 3-5g / L of copper chloride. According to the preparation method, the color of a dyeing layer is adjusted by combining a voltage gradient rising multi-time dyeing process and the dye solution containingcopper ions, so that the golden oxidation film with the pure color, the uniform color and high glossiness is obtained, a relatively good antibacterial effect is achieved, and good comprehensive performance is achieved.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a method for preparing a golden thin film. Background technique [0002] Aluminum alloy substrates have the characteristics of low cost, light weight, and easy processing, and are widely used in kitchen, bathroom, home, construction and other industries, such as aluminum alloy frames for shower rooms, aluminum alloy door handles, and aluminum alloy pendants. Aluminum alloy oxidation technology has been reported in related patents. For example, in patent CN 104152969 B, aluminum alloy parts with porous oxide film are obtained by direct current electrolysis in sulfuric acid medium after degreasing and oxidation film removal; (AgNO 3 、CuSO 4 etc.), and finally the hot water is sealed to obtain a golden yellow aluminum alloy antibacterial material. [0003] Most of the existing aluminum alloy products using the two-acid process are oxidized into a gold film, and t...

Claims

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Application Information

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IPC IPC(8): C25D11/22C25D11/16C25D11/08
CPCC25D11/22C25D11/16C25D11/08
Inventor 林孝发林孝山刘小龙王汉春李日红
Owner JOMOO KITCHEN & BATHROOM
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