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Method for plating aluminum film or aluminum-tin alloy film on surface of continuous aluminum rolling plate in vacuum gas phase sedimentation method

A technology of aluminum-tin alloy and vacuum air, which is applied in vacuum evaporation plating, devices for coating liquid on the surface, special surfaces, etc., can solve the problems of low production efficiency, high cost, large sewage discharge, etc., and achieve high production efficiency High, cost reduction, low cost effect

Active Publication Date: 2013-06-19
湖南省岩田新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The process technology of mechanical polishing plus electrochemical polishing technology to produce aluminum mirror panels or stainless steel mirror panels has the following disadvantages: (1) Since the mirror effect is mainly obtained by mechanical friction, the production efficiency is low and the energy consumption is high
(2) A large amount of concentrated nitric acid, concentrated sulfuric acid or concentrated phosphoric acid is required in the production process, and the sewage discharge is large and the pollution is relatively serious
(3) High cost: The industry average cost of mechanical polishing assisted by electrochemical polishing technology is about 30 yuan / square meter
The application of vacuum vapor deposition technology to the surface processing of continuous aluminum coils to obtain mirror aluminum coils has not yet been reported.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Substrate pretreatment: degreasing→water washing→pickling to remove oxide film→washing→drying; the substrate is an aluminum plate;

[0038] a) Degreasing: Degrease the aluminum plate or aluminum coil in the chemical solution for 2 minutes, the temperature is controlled at 50°C; the formula of the chemical solution is: sodium hydroxide 30 g / L, and the industrial detergent is Fulu, Jinhua City FLK-020 degreasing agent produced by Kete Technology Co., Ltd., 0.5 ml / L, the rest is water;

[0039] b) Washing: Put the chemically degreased aluminum sheet or aluminum coil into warm water for 20 seconds at a temperature of 40°C;

[0040] c) pickling to remove the oxide film: put the washed substrate into an acid solution to remove the oxide layer; the acid solution is 250 ml per liter of hydrochloric acid solution, and the reaction time is controlled at 1 min;

[0041] d) Washing: washing the acid-washed substrate in water at 40°C for 20s;

[0042]e) Drying: bake at 60°C fo...

Embodiment 2

[0051] (1) Substrate pretreatment: degreasing→water washing→pickling to remove oxide film→washing→drying; the substrate is an aluminum coil;

[0052] a) Degreasing: degrease the aluminum plate or aluminum coil in the chemical solution for 2 minutes, the temperature is controlled at 55°C; the formula of the chemical solution is: sodium hydroxide 45 g / L, and the industrial detergent is Jinhua Fulu The FLK-010 high-efficiency degreasing powder produced by Kete Technology Co., Ltd. is 1 ml / L, and the rest is water;

[0053] b) Water washing: put the chemically degreased aluminum sheet or aluminum coil into warm water for cleaning, the water temperature is 40°C, and the time is 30 seconds;

[0054] c) pickling to remove the oxide film: put the washed substrate into an acidic solution to remove the oxide layer; the acidic solution is 300 ml per liter of hydrochloric acid solution, and the reaction time is controlled at 2 minutes;

[0055] d) Washing: washing the acid-washed substra...

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Abstract

The invention belongs to the field of mirror finishing of aluminum rolling plates and particularly provides a method for plating an aluminum film or an aluminum-tin alloy film on the surface of a continuous aluminum rolling plate in a vacuum gas phase sedimentation method. The method comprises the following steps: substrate pretreatment, roller painting or spraying of a base coat, vacuum gas phase sedimentation plating of the aluminum film or the aluminum-tin alloy film and roller painting or spraying of a finishing coat. The method is high in production efficiency and good in film forming effect, and greatly reduces cost. Light reflection efficiency of a mirror plane plate obtained by the method is higher than 92%, and the method can be widely applied to architectural decoration, lamps and household appliance industry.

Description

technical field [0001] The invention belongs to the field of mirror surface processing of aluminum coils and specifically provides a surface coating method for continuous aluminum coils. Background technique [0002] With the development of economy and technology, the application of aluminum plate is becoming more and more extensive, especially the mirror aluminum plate, as a high-end aluminum material, is more and more widely used in interior decoration, mechanical equipment, solar heating and power generation and other fields. The commonly used surface treatment technology of aluminum plate is mainly spray coating, roller coating or anodizing, in order to pursue different effects on the surface of aluminum plate. At present, the most mature processing technology of mirror aluminum plate is mainly mechanical polishing technology and chemical polishing technology, and there are almost no mature manufacturers in China at present. This technology is mainly mastered by Japanese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/24C23C14/20C23C14/02B05D5/06B05D3/02B05D3/06B05D7/14
Inventor 胡远军王维谷明增
Owner 湖南省岩田新材料科技有限公司