Integrated hole sealing method for anodic oxide films of aluminum alloys

A technology of anodic oxidation film and treatment method, which is applied in the field of hole sealing, can solve the problems of losing the sealing effect and easy corrosion of the oxide film, and achieves the effect of excellent timeliness
CN104831328AInactive Publication Date: 2015-08-12SOUTHWEST JIAOTONG UNIV
4 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTHWEST JIAOTONG UNIV
Publication Date
2015-08-12
Estimated Expiration
Not applicable · inactive patent

Smart Images

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

Abstract

The invention discloses an integrated hole sealing method for anodic oxide films of aluminum alloys. The integrated hole sealing method is excellent in hole sealing effect and high in timeliness and includes the steps: firstly, preparing phosphate solution and cerium salt solution; secondly, putting the anodic oxide films of the aluminum alloy into the cerium salt solution to carry out cerium salt hole sealing; thirdly, uniformly brushing the phosphate solution onto the anodic oxide films subjected to cerium salt hole sealing, curing for a while in the air, and carrying out thermal treatment at the temperature ranging from 150 DEG C to 350 DEG C; finally, forming a compact phosphate coating on the surface of the anodic oxide films after the steps are repeated for 2-8 times. Corrosion resistance and abrasion resistance of the anodic oxide films subjected to integrated hole sealing are much higher than those of anodic oxide films subjected to single hole sealing, and effects of integrated hole sealing are much higher than additive effects of single cerium salt hole sealing and phosphate hole sealing. In addition, cerium salt and phosphate integrated hole sealing method is high in timeliness and suitable for popularization and application in the technical field of hole sealing.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of hole sealing, in particular to a composite hole sealing treatment method of aluminum alloy anodized film. Background technique

[0002] Pure aluminum is soft and ductile, but its strength is low, limiting its application where higher strength is required. For this reason, some alloying elements are usually added in the industry to obtain aluminum alloys with different properties. Aluminum alloy has the advantages of high specific strength, excellent thermal conductivity, good corrosion resistance and good plasticity. In addition, the high temperature performance, formability and surface treatment performance of aluminum alloy are also relatively good. It is a non-ferrous metal with excellent comprehensive performance. Metal. Therefore, aluminum and its alloys have been widely used in various fields such as aerospace, automobiles, construction, bridges, ships, chemicals, packaging, machinery and equipmen...

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