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Vacuum spraying treatment technology used for aluminum profile machining

A technology of aluminum profile processing and vacuum spraying, which is applied in the field of aluminum profile processing, can solve problems such as low bonding strength, affecting the service life of the coating, and metal shedding of the coating, so as to improve the bonding firmness, improve mechanical properties, reduce produces a quantitative effect

Inactive Publication Date: 2020-06-05
董翠萍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adhesion between the sprayed metal layer prepared by the existing vacuum spraying process and the aluminum profile body is relatively low, and there will be gaps and pores in the sprayed layer, and these defects will cause the coated metal to fall off from the surface of the aluminum profile There is a large gap in the middle of the profile, which affects the service life of the coating
However, there are few reports on this

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Preparation of cleaning solution: measure 45L deionized water, 5kg glycerin, 1kg betaine, 2kg polyoxyethylene ether, 5kg hydrochloric acid, 7kg sodium chloride, 5kg alumina and 3kg phosphoric acid for use;

[0023] Surface treatment of aluminum profiles: use cleaning solution to remove the grease and oxide film layer on the surface of aluminum profiles, put the aluminum alloy in the cleaning solution for degreasing treatment, use ultrasonic auxiliary cleaning during the cleaning process, the ultrasonic power is 200W, and the cleaning time is 15 minutes, and then Rinse and wash with deionized water, and then blow dry the aluminum profile with hot air at 45°C after rinsing.

[0024] Install the zinc sheet inside the vacuum chamber and adjust the pressure of the vacuum chamber to 3×10 -5 Pa, the zinc sheet is heated by electric heating, the electric heating current is 65A, the zinc sheet reaches the melting point, melts and evaporates into gaseous zinc atoms, the rotation ...

Embodiment 2

[0029] Preparation of cleaning solution: measure 60L deionized water, 7kg glycerin, 3kg betaine, 5kg polyoxyethylene ether, 10kg hydrochloric acid, 12kg sodium chloride, 10kg alumina and 5kg phosphoric acid for use;

[0030] Surface treatment of aluminum profiles: Use cleaning solution to remove the grease and oxide film layer on the surface of aluminum profiles, put the aluminum alloy in the cleaning solution for degreasing treatment, use ultrasonic assisted cleaning during the cleaning process, the ultrasonic power is 300W, and the cleaning time is 20min, and then Rinse and wash with deionized water, and then blow dry the aluminum profile with hot air at 55°C after rinsing.

[0031] Install the copper sheet inside the vacuum chamber and adjust the pressure of the vacuum chamber to 4×10 -5 Pa, the copper sheet is heated by electric heating, the electric heating current is 80A, the copper sheet reaches the melting point, melts and evaporates into gaseous copper atoms, the rota...

Embodiment 3

[0036] Preparation of cleaning solution: Measure 50L deionized water, 6kg glycerin, 2kg betaine, 4kg polyoxyethylene ether, 7kg hydrochloric acid, 8kg sodium chloride, 6kg alumina and 4kg phosphoric acid for use;

[0037] Surface treatment of aluminum profiles: Use cleaning solution to remove the grease and oxide film layer on the surface of aluminum profiles, put the aluminum alloy in the cleaning solution for degreasing treatment, use ultrasonic auxiliary cleaning during the cleaning process, the ultrasonic power is 220W, and the cleaning time is 5-20min , and then rinse and wash with deionized water, and then blow dry the aluminum profile with hot air at 47°C after rinsing.

[0038] Install the chromium sheet inside the vacuum chamber and adjust the pressure of the vacuum chamber to 5×10 -5 Pa, the chromium sheet is heated by electric heating, the electric heating current is 70A, the chromium sheet reaches the melting point, melts and evaporates into gaseous chromium atoms,...

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PUM

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Abstract

The invention discloses a vacuum spraying treatment technology used for aluminum profile machining and relates to the technical field of aluminum profile machining. The technology includes aluminum profile surface treatment, pre-spraying, pre-spraying layer heat treatment, continuous spraying and annealing treatment. By means of the vacuum spraying treatment technology used for aluminum profile machining, heat treatment is conducted on a thin metal coated layer generated on the surface of an aluminum profile, an aluminum and coated metal alloy layer is formed between the surface of the aluminum profile and a coated metal layer to serve as a transition layer, and the bonding firmness degree of aluminum and coated metal is improved; in the alloy layer generation process, ultrasonic waves areused for blowing a molten liquid aluminum layer and liquid coated metal atoms, mutual merging between the liquid aluminum layer and the coated metal atoms is promoted, and the dispersing uniformity of alloy particles is better improved; and due to heating, ultrasonic treatment and two-stage annealing in the subsequent continuous spraying process, the coated metal dispersing uniformity is better improved, the generation number of air holes and cracks is reduced, and the bonding firmness degree of the coated layer and the aluminum profile is further improved.

Description

technical field [0001] The invention relates to the technical field of processing aluminum profiles, in particular to a vacuum spraying process for processing aluminum profiles. Background technique [0002] The existing aluminum product preparation process includes surface treatment, coloring and coating. Among them, the important coating process in the coating process is the vacuum evaporation process, also known as the vacuum spraying process. The vacuum spraying process refers to using the coating metal as the evaporation source, heating the processed coating metal to evaporate, generating metal vapor, and depositing on the surface of the aluminum plate to form a coating. The adhesion between the sprayed metal layer prepared by the existing vacuum spraying process and the aluminum profile body is relatively low, and there will be gaps and pores in the sprayed layer, and these defects will cause the coated metal to fall off from the surface of the aluminum profile There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/26C23C14/16C23C14/02C23C14/58C23G1/12
CPCC23C14/021C23C14/16C23C14/26C23C14/58C23C14/5806C23G1/125
Inventor 董翠萍
Owner 董翠萍
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