Metal product and preparation method thereof

A technology for metal products and metal bodies, applied in coatings, surface reaction electrolytic coatings, electrolytic coatings, etc., can solve the problems of unstable sealing state, poor sealing bonding force, environmental pollution, etc., to achieve enhanced bonding force, Good corrosion resistance, combined with good stability

Active Publication Date: 2020-05-19
SHENZHENSHI YUZHAN PRECISION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing oxide film has the problems of poor sealing bonding force and unstable sealing state.
Moreover, the existing oxidation process and hole sealing process have many steps, the process is complicated, and it is easy to cause environmental pollution

Method used

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  • Metal product and preparation method thereof
  • Metal product and preparation method thereof
  • Metal product and preparation method thereof

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the accompanying drawings in the embodiments of the application. Apparently, the described embodiments are only part of the embodiments of the application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0034] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the othe...

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PUM

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Abstract

The invention provides a metal product. The metal product comprises a metal main body and a film layer, wherein the film layer is arranged on the surface of the metal main body, and comprises holes; the outer walls of the hole are polygonal; the inner walls of the holes are circular; and the holes are filled with oxide particles. A preparation method of the metal product comprises the following steps of placing the metal main body in an electrolyte; and electrochemically reacting the metal main body by adopting a positive and negative pulse method to form the film layer on the surface of the metal main body, wherein under positive pressure, the metal main body is oxidized to form the film layer, the film layer comprises the holes, the outer walls of the holes are polygonal, the inner wallsof the holes are circular, and under negative pressure, the oxide particles for filling the holes are arranged in the holes.

Description

technical field [0001] The present application relates to a metal product and a preparation method thereof. Background technique [0002] Metals such as aluminum alloys usually form an oxide film by oxidation, and seal the oxidation pores of the oxide film to improve its appearance, corrosion resistance, wear resistance and other properties. However, the existing oxide film has the problems of poor sealing bonding force and unstable sealing state. Moreover, the existing oxidation process and hole sealing process have many steps, the process is complicated, and it is easy to cause environmental pollution. Contents of the invention [0003] In view of this, it is necessary to provide a metal product and its preparation method to solve the above problems. [0004] A metal product comprising: [0005] metal body; and [0006] The film layer is arranged on the surface of the metal body, the film layer includes holes, the outer walls of the holes are polygonal, the inner wal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D15/00C25D11/06C25D5/18C25D5/44C25D11/16C25D11/20
CPCC25D5/18C25D5/44C25D11/06C25D11/16C25D11/20C25D15/00
Inventor 刘青张东旭陈正士
Owner SHENZHENSHI YUZHAN PRECISION TECH CO LTD
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