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Surface treating method of the aluminum alloy decorative sheet

A technology of surface treatment and aluminum alloy plate, which is applied to the device and coating of the surface coating liquid, which can solve the problems of discoloration, high production cost, and resistance to chemical corrosion, etc., achieve soft and bright color, low production cost, Strong antioxidant effect

Inactive Publication Date: 2008-02-06
TIANJIN ZHENDONG PAINTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because the metal is relatively lively and easy to oxidize, its production process is only after pretreatment, then electrostatic spraying and curing. Oily smoke, and the paint film is prone to peeling, discoloration, loss of gloss, and easy to fall off and powder under high temperature, freezing, and environmental pollution

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0006] Embodiment: select aluminum content more than 80%, thickness is 20-80 semi-hard aluminum alloy plate; Soak the aluminum alloy with 3.5% sulfuric acid solution for 50 seconds, rinse with clear water after soaking; After natural drying, use 10% After smearing the surface with acetone, 40% benzene, and 20% n-propyl acetate, blow the surface with an air compressor; after drying, heat it at 180°C for 50 minutes with a thyristor far-infrared heating device; heat the heated aluminum alloy The surface is sprayed with 60% polyester bad oxygen powder paint, and after spraying, it is heated again at 180°C for 50 minutes with silicon controlled silicon far-infrared heating equipment; use 30% epoxy resin powder, 30% butyl acetate, and 20% industrial paint Color masterbatch, after making patterns by roller coating, heat with heating equipment at 150°C for 60 minutes; spray 30% varnish on the surface of the heated aluminum alloy, and then heat at 180°C for 50 minutes to get printed pat...

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PUM

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Abstract

The invention relates to a surface treatment method for aluminium alloy decorated board, the aluminium alloy is soaked in sulfuric acid solution, washed by clear water, dried naturally and coated with acetone, benzene, and n-propyl acetate on the surface, blown on the surface by an air pump; and then is heated by a thyristor rectifier infrared heating device, coated with the polyester epoxy powder coating on the surface and heated by the thyristor rectifier infrared heating device again; and are roll coated with epoxy resin powder, butyl acetate, and industry paint color masterbatch to be made of lathework, heated, coated with varnish on the surface, and is heated again to get finished product of the aluminium alloy decorated board with the lathework. The invention has the advantages that the invention is acid resistant, alkali resistant, chemical corrosion resistant, and is not easy to paste with the chimney soot, and is of high inoxidability. The invention has no phenomenon of peeling and dulling, the varnish has no abscission. The pattern is of strong third dimension, soft and bright color, no discoloration and fastness. The manufacturing cost is lower.

Description

technical field [0001] The invention relates to a surface treatment method of an aluminum alloy decorative plate. Background technique [0002] Because the metal is relatively lively and easy to oxidize, its production process is only after pretreatment, then electrostatic spraying and curing. Oily fumes, and the paint film is prone to peeling, discoloration, loss of gloss, and easy to fall off and powder under high temperature, freezing, and environmental pollution. Contents of the invention [0003] The object of the present invention is to overcome the above-mentioned defects and provide a method for surface treatment of an aluminum alloy decorative plate. [0004] The technical solution of the present invention is: a method for surface treatment of aluminum alloy decorative panels, which is characterized in that: soak the metal material with 3-5% sulfuric acid solution for 30-50 seconds, then rinse with water; after natural drying, use 30-40% benzene, 15-20% n-propyl...

Claims

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Application Information

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IPC IPC(8): B05D7/14B05D7/24B05D1/38C23F1/02
Inventor 张云波
Owner TIANJIN ZHENDONG PAINTS CO LTD
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