Preparation method of bright and corrosion resistant environment-friendly aluminium profile

Abstract

A preparation method of a bright and corrosion resistant environment-friendly aluminium profile comprises the following steps: a, a bright preservative solution is prepared firstly from components inparts by weight as follows: 20-40 parts of sodium fluoride, 30-60 parts of ammonium bifluoride, 10-20 parts of potassium permanganate, 40-50 parts of potassium chromate, 15-25 parts of zinc phosphate,8-18 parts of sodium nitrate, 5-12 parts of praseodymium chloride, 10-16 parts of EDTA, 7-14 parts of malic acid, 8-12 parts of sodium dodecyl benzene sulfate, 6-13 parts of nickel sulfate, 15-25 parts of triethanolamine, 5-10 parts of a reducing agent containing alkali metal, 7-13 parts of chlorinated polypropylene or polyolefin substrate adhesion promoter and 500-900 parts of water, and the bright preservative solution is obtained by controlling pH to be 3-4; b, an aluminium profile is fed to the bright preservative solution prepared in step a for soaking; c, temperature of the bright preservative solution in step b is 30-40 DEG C; d, the aluminium profile which finishes soaking is dried at 50-60 DEG C; e, surface of the aluminium profile dried in the step d is subjected to alkaline treatment by a reagent; f, the surface of the aluminium profile finishing surface chemical treatment in step e is subjected to curing treatment.

Description

technical field [0001] The invention relates to a profile processing method, in particular a method for preparing a bright and anti-corrosion environment-friendly aluminum profile. Background technique [0002] An aluminum profile is a geometrically shaped object that is made of aluminum and processed through rolling, extrusion, and other processes. It is widely used in the field of construction. [0003] For the traditional aluminum profile, the surface of the aluminum profile has been treated with anti-oxidation, which is not only resistant to dirt, but also has a smooth surface and is easy to clean. [0004] In order to make the surface of the aluminum profile bright and anti-corrosion, the corresponding bright anti-corrosion medium is usually configured to soak the aluminum profile to be processed or completed. The traditional bright anti-corrosion medium is usually composed of sodium fluoride, ammonium hydrogen fluoride, potassium permanganate, It is made of potassium...

AI Technical Summary

Problems solved by technology

[0005] After immersion, the surface finish and anti-corrosion of the aluminum profile are improved. However, the immersion medium has a certain strong acidity, which causes the environmental hazards to remain on the surface of the aluminum profile. When it is used indoors as a window, it is harmful to the environment. Human body has certain hazards

[0006] If the toxic substances on the surface are completely removed, it will not only be harmful to the environment, but also take a long time to remove