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Method for directly coating film on surface of lens aluminium

A mirror aluminum, direct technology, applied in the field of aluminum and its alloys, can solve problems affecting coating treatment, affecting aesthetics, corrosion of aluminum plates, etc., and achieves the effects of low production cost, various colors, and less environmental pollution

Active Publication Date: 2012-08-08
浙江铭岛新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Because the aluminum plate is exposed to the air, it is easy to cause corrosion of the aluminum plate. The corrosion layer on the surface is not only dull in color, which affects the aesthetics, but also affects the subsequent coating treatment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Wash the aluminum plate with water first to remove the dirt on the surface of the aluminum plate. After cleaning, keep the temperature of the aluminum plate within 40°C to 45°C, and clean the surface of the aluminum plate with dilute hydrochloric acid with a mass concentration of 3% to remove the corrosion layer on the surface and oil and other impurities, and then wash the aluminum plate with a mass concentration of 15% sodium carbonate solution, and finally wash the acid and alkali solution remaining on the surface of the aluminum plate with water. After washing until the washing liquid is neutral, put it in a drying oven for drying.

[0018] After the above-mentioned pretreated aluminum plate is taken out, it is preheated to 180° C., and then placed in a vacuum chamber for vacuum coating treatment. The vacuum coating is a common evaporation coating, that is, when coating, the evaporation source Ti 3 N 4 The material is placed on the crucible in the vacuum chamber, a...

Embodiment 2

[0020] Wash the aluminum plate with water first to remove the dirt on the surface of the aluminum plate. After washing, clean the surface of the aluminum plate with dilute hydrochloric acid with a mass concentration of 5% at room temperature to remove impurities such as corrosion layer and oil stains on the surface, and then Wash the aluminum plate with 3% sodium hydroxide solution, and finally wash the acid and alkali solution remaining on the surface of the aluminum plate with water. After washing until the washing liquid is neutral, put it in a drying oven for drying.

[0021] After the above-mentioned pretreated aluminum plate is taken out, it is preheated to 180° C., and then placed in a vacuum chamber for vacuum coating treatment. The vacuum coating is a common evaporation coating, that is, when coating, the evaporation source Si 3 N 4 The material is placed on the crucible in the vacuum chamber, and the aluminum plate is placed in front of the crucible. After the vacuu...

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Abstract

The invention relates to a method for directly coating a film on the surface of lens aluminium, belonging to the technical field of aluminium and alloy thereof. The method comprises the following steps of: cleaning the surface of an aluminium plate with water, dilute acid and alkali liquor; carrying out vacuum film coating treatment on the cleaned aluminium plate by adopting a ceramic material; and forming a film on the surface of the aluminium plate, wherein the ceramic material is Si3N4 and Ti3N4. The thin film layer formed on the surface of the lens aluminium produced with the method provided by the invention not only has varied colors, attractive appearance and good corrosion resistance, abrasive resistance and defect resistance; in addition, the method has a simple process, less pollution to the environment and low production cost and is beneficial to large-scale industrial production.

Description

technical field [0001] The invention relates to an aluminum surface coating method, in particular to a mirror aluminum surface direct coating method, which belongs to the technical field of aluminum and its alloys. Background technique [0002] Aluminum and its alloys are light metal materials with advantages such as low density, strong electrical and thermal conductivity, excellent mechanical properties, and secondary processing, so they have been widely used in industrial production. [0003] Since light metals such as aluminum and its alloys are easily corroded materials, their surfaces are usually treated to reduce their corrosion. The prior art mainly adopts surface treatment methods such as chemical conversion treatment and anodic oxidation. After surface treatment of aluminum and its alloy materials, although its corrosion resistance and wear resistance have been improved to a certain extent, due to chemical treatment or anodic oxidation treatment, the metal surface ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/06C23C14/02
Inventor 李书通尤志彬丁荣辉章以中曾凡清
Owner 浙江铭岛新材料股份有限公司