Preparation method of anti-corrosion aluminum profile

Abstract

The invention discloses an anti-corrosion aluminum profile preparation method which comprises the following steps: step 1, dust removal: putting an aluminum profile on a conveying belt for conveying, then performing dust removal on the aluminum profile through a plurality of air curtains in a dust removal box, then taking out the aluminum profile, and wiping the surface of the aluminum profile through a sponge adhered with alcohol; (2) grease is removed, specifically, the aluminum profile subjected to dust removal is placed in a temperature control box, a degreasing solution is prepared in the temperature control box, the aluminum profile is soaked for 1-3 min through the degreasing solution, and the temperature of the temperature control box is 30-60 DEG C; 3, alkali washing is conducted, specifically, the aluminum profile subjected to grease removal is soaked in alkali liquor with the sodium hydroxide concentration being 70-200 g / L and the temperature being 40-70 DEG C for 1-2 min, and oxide and dirt naturally formed on the surface of the aluminum profile are removed; 4, neutralization is conducted, specifically, the aluminum profile is soaked in a salpeter solution with the concentration being 100-200 g / L and soaked for 30-60 s at the temperature of 40-50 DEG C, and the salpeter solution and a sodium hydroxide solution are subjected to a neutralization reaction; according to the invention, the aluminum profile with better corrosion resistance can be prepared.

Description

technical field [0001] The invention relates to the field of processing aluminum profiles, in particular to a preparation method for anti-corrosion aluminum profiles. Background technique [0002] my country is a big producer of aluminum profiles. According to statistics released by the Ministry of Commerce of the People's Republic of China in September 2010, in 2009, there were about 95 countries and regions that could produce aluminum profiles in the world, and there were more than 2,200 production companies, of which my country's production capacity accounted for The proportion of the world's total production capacity exceeds 50%, ranking first. In 2010, the production and sales of aluminum profiles in my country will exceed 10 million tons, of which the consumption of aluminum profiles for construction is expected to exceed 6 million tons. The application of metal materials faces the problem of being corroded. According to the analysis of the Marine Corrosion and Protect...

AI Technical Summary

Problems solved by technology

The aluminum profile processed by this patented technology will still appear corrosion after long-term use