Aluminum-plastic composite panel coloring treatment method based on electrolytic coloring technology

Abstract

Disclosed is an aluminum-plastic composite panel coloring treatment method based on an electrolytic coloring technology. According to the method, the three steps of spray degreasing, brush degreasing and dipping degreasing are adopted to conduct degreasing on an aluminum-plastic composite panel, and degreasing is more thorough; due to the fact that the aluminum-plastic composite panel is oxidized by the use of a sulfuric acid direct-current anodic oxidation method, the production cost is low, the electricity is saved, oxidized waste liquid is conveniently treated, and a membrane layer oxidized by the sulfuric acid direct-current anodic oxidation method is high in transparency, corrosion resistance and abrasion resistance, is harder, and is higher in density and more stable in structure; and a tin salt solution serves as an electrolytic solution and conducts alternating-current electrolytic coloring on the aluminum-plastic composite panel, operation is easy, the obtained color range is wide, various colors including the bronze, the yellow, the antique brass, the brown and the black can be obtained as long as the coloring time is controlled, the colors are uniform, and the influence of environmental pollution is relatively little.

Description

technical field [0001] The invention belongs to the technical field of aluminum plate production, and relates to a coloring treatment method for an aluminum-plastic composite plate, in particular to a coloring treatment method for an aluminum-plastic composite plate based on an electrolytic coloring process. Background technique [0002] As a new type of material, the aluminum-plastic composite panel has the characteristics of low price, wide application, convenient construction, and excellent workmanship. The coated aluminum panel is chemically treated as the surface material of the aluminum-plastic composite panel, and has very good fire resistance. , favored by the majority of the construction industry. [0003] There are many types of aluminum-plastic panels, and the classification methods are also different. According to their uses, they can be divided into aluminum-plastic panels for building curtain walls, aluminum-plastic panels for exterior wall decoration and adver...

AI Technical Summary

Problems solved by technology

[0005] With the development of the economy, aluminum-plastic composite panels have been favored as building materials. They are often used in high-rise walls, bedrooms, corridor partitions, billboards, etc. The plate coloring process has brought huge challenges. The existing process has problems such as single color, poor coloring process, poor stability, and easy color fading.