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Surface treatment method and surface treatment device

A technology for surface treatment and surface treatment, applied in the direction of surface reaction electrolytic coating, coating, electrolytic components, etc., which can solve the problems of equipment cost and large scale.

Active Publication Date: 2022-05-27
ULVAC INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the case of forming an oxide film on an object to be processed with a large processing area by micro-arc oxidation, there is a problem that a large-scale power supply device or a large-scale electrolyte cooling mechanism is required, which leads to cost in terms of equipment.

Method used

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  • Surface treatment method and surface treatment device
  • Surface treatment method and surface treatment device

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Embodiment Construction

[0047] Hereinafter, the best mode of the surface treatment apparatus and the surface treatment method which concern on embodiment of this invention is demonstrated based on drawing. In addition, the present embodiment is specifically described for better understanding of the gist of the present invention, and does not limit the present invention unless otherwise specified.

[0048] figure 1 It is a block diagram which shows the surface treatment apparatus which concerns on embodiment of this invention.

[0049] like figure 1 As shown, the surface treatment apparatus according to the embodiment of the present invention is a surface treatment apparatus in which an object to be treated 11 made of aluminum or an aluminum alloy is immersed in an electrolytic solution 22 to perform anodizing treatment (anodizing treatment step), As a result, an oxide film is formed on the object to be processed.

[0050] In this surface treatment apparatus, the object to be processed 11 on whic...

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Abstract

The invention relates to a surface treatment method and a surface treatment device. The surface treatment method of the present invention is a process of setting a plurality of treatment areas on the surface of a treatment object made of valve metal, and immersing each treatment area in an electrolytic solution continuously or intermittently to perform anodic oxidation treatment , thereby forming an oxide film on the surface to be treated. The anodizing treatment includes an Mth (M is an integer of 2 or greater) step. The Mth step includes a Math step, an Mbth step..., and an Mnth step (n is an integer of 1 or more). By making the voltage V M to the maximum voltage V Max The direction of is increased sequentially to a predetermined value, and the Mth step is repeated to form the oxide film whose total film thickness is a desired thickness.

Description

technical field [0001] The present invention relates to a surface treatment method and a surface treatment device for surface treatment of an object to be treated. More specifically, the present invention relates to a method for forming an oxide film on a to-be-processed surface of a to-be-processed object made of a valve metal such as aluminum, tantalum, niobium, titanium, hafnium, zirconium, zinc, tungsten, bismuth, or antimony. Surface treatment method and surface treatment device. In addition, valve metals are also referred to as "Valve Metals" or "valve metals". Background technique [0002] The following surface treatment methods are known: i.e., such as Figure 7A and Figure 7B As shown, an oxide film is formed on the surface of the object to be treated by performing anodization treatment including micro-arc oxidation treatment on the object to be treated 111 having a small area. exist Figure 7A and Figure 7B In the figure, reference numeral 121 denotes an elec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/02C25D17/00
CPCC25D11/005C25D11/026C25D11/04C25D11/26C25D11/34C25D21/12
Inventor 石榑文昭稻吉荣藤田胜博佐藤洋志
Owner ULVAC INC