Method for microporous treatment of metal surface

A metal surface and microporous technology, applied in the field of material processing, can solve the problems of low bonding strength, high cost, uneven and irregular rough surface, etc., and achieve the effect of good order and enlarged pore size
CN104593786AActive Publication Date: 2015-05-06东莞市慧泽凌化工科技有限公司 +1
9 Cites 10 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
东莞市慧泽凌化工科技有限公司
Publication Date
2015-05-06

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention belongs to the technical field of material treatment and particularly relates to a method for microporous treatment of a metal surface. The method comprises the following steps: (1) performing anodic oxidation on a preprocessed metal base material to obtain a metal base material provided with an anodic oxide film layer on the surface; (2) soaking the metal base material obtained in the step (1) in etching liquor for treatment; (3) putting the metal base material obtained in the step (2) into an anodic oxidation groove with sulfur acid and ammonium chloride for modification treatment; (4) soaking the metal base material obtained in the step (3) in a phosphate anion solution, washing with water, soaking in a washing regulating agent at a room temperature, washing with water, and baking for 0.5-1 hour. The purpose of pore size expansion is achieved in a condition-controllable AAO (anodic aluminum oxide) film production mode, a problem that a conventional pore-forming method cannot obtain ordered controllable micropores is solved, and strict requirements on various aspects of product size, structure and the like are avoided from a macroscopic perspective.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of material processing, in particular to a method for microporous metal surface treatment. Background technique

[0002] In the fields of mobile communication equipment, electronic and electrical equipment, automotive machinery, etc., it is often necessary to spray, bond, and inject the metal surface. In order to improve the bonding strength of surface attachments, it is usually necessary to treat the surface, such as common phosphating, Passivation and processing methods such as creating holes and undercuts, in short, all improve the bonding strength of the metal and the attachment by increasing the surface corrosion resistance and roughness. The traditional way is to use phosphating and passivation to corrode the metal surface by soaking in chemical solution to achieve the purpose of not only protecting the metal surface but also roughening the surface to improve the bonding strength of the metal and the a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More