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Preparation method of composite anode and composite anode

A composite anode and anode technology, applied in the direction of anodic oxidation, coating, surface reaction electrolytic coating, etc., can solve the problems of poor metal surface dyeing, unfavorable metal material decoration, poor wear resistance and corrosion resistance of oxide layer, etc. , to achieve the effect of improving surface decoration, increasing hardness and easy dyeing

Pending Publication Date: 2022-05-13
FUZHUN PRECISION TOOLING (JIASHAN) CO LTD
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Problems solved by technology

However, the wear resistance and corrosion resistance of the oxide layer obtained by the traditional anodic oxidation technology are not good, and the metal surface after anodic oxidation treatment has poor dyeability, which is not conducive to the decoration of metal materials.

Method used

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  • Preparation method of composite anode and composite anode
  • Preparation method of composite anode and composite anode
  • Preparation method of composite anode and composite anode

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preparation example Construction

[0050] see figure 1 , combined with figure 2 and image 3 , the invention provides a method for preparing a composite anode, comprising the following steps:

[0051] Step S1, providing a substrate, and performing pretreatment on the substrate.

[0052]In this embodiment, the pretreatment includes degreasing, chemical polishing and stripping black.

[0053] In this embodiment, the base material is a metal material such as aluminum, aluminum alloy, titanium or titanium alloy, and specifically, the base material is an aluminum alloy.

[0054] Firstly, the base material is prepared into a sheet sample with a certain shape and size, specifically, the size of the sheet is 14 cm×6 cm×8 mm. The surface of the prepared sample sheet is ground and mechanically polished.

[0055] Then put the sample into 15% sulfuric acid solution for degreasing treatment, and wash the sample with water after degreasing treatment.

[0056] Put the sample after degreasing treatment into phosphoric a...

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Abstract

The preparation method of the composite anode comprises the steps that a base material is placed in a first electrolyte to be subjected to first oxidation treatment, a first oxidation layer is formed on the surface of the base material, an intermediate is obtained, and the first oxidation treatment conditions are that the oxidation temperature is-2 DEG C to 2 DEG C, the oxidation voltage is 27 V to 40 V, the oxidation time is 14 min to 20 min, the current density is 1 A / dm < 2 > to 5 A / dm < 2 >, and the current climbing time is 1 min to 3 min; and the intermediate is placed in a second electrolyte to be subjected to second oxidation treatment, the part, close to the first oxidation layer, of the base material forms a second oxidation layer, the first oxidation layer and the second oxidation layer form a composite oxidation layer, the composite anode is obtained, and the second oxidation treatment conditions are that the oxidation temperature ranges from 14 DEG C to 19 DEG C, the oxidation voltage ranges from 12 V to 17 V, and the oxidation time ranges from 12 min to 30 min. The composite anode prepared through the method is high in hardness, resistant to abrasion and corrosion and easy to dye.

Description

technical field [0001] The invention relates to the technical field of metal material surface treatment, in particular to a method for preparing a composite anode and the composite anode. Background technique [0002] Metal materials have low surface hardness and poor corrosion resistance, and surface treatment is required to improve the surface hardness and corrosion resistance of metal materials. [0003] The traditional method is to use metal surface anodic oxidation technology to prepare a layer of wear-resistant and corrosion-resistant oxide layer on the metal surface. However, the wear resistance and corrosion resistance of the oxide layer obtained by the traditional anodizing technology are not good, and the metal surface after anodizing treatment has poor dyeability, which is not conducive to the decoration of metal materials. Contents of the invention [0004] In order to solve the above technical problems, the present invention proposes a method for preparing a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/02C25D11/12C25D11/26
CPCC25D11/02C25D11/12C25D11/26
Inventor 吴凯强李敏世谢小东
Owner FUZHUN PRECISION TOOLING (JIASHAN) CO LTD
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