Aluminum magnesium alloy film removing agent

Abstract

The invention discloses an aluminum magnesium alloy film removing agent and a manufacturing method of the aluminum magnesium alloy film removing agent, and belongs to the technical field of aluminum magnesium alloy surface treatment. According to the following raw material components and parts by weight, the aluminum magnesium alloy film removing agent comprises, by weight, 10-20 parts of mixed acid, 4-6 parts of surface active agents, 5-8 parts of metal corrosion inhibitors, 2-4 parts of catalysts, 10-15 parts of addition agents and 47-69 parts of water. The manufacturing method of the aluminum magnesium alloy film removing agent comprises the steps that the raw material components are weighed according to the raw material components of the aluminum magnesium alloy film removing agent andthe parts by weight; and the water is added to a plastic reaction kettle, the catalysts are added to be completely dissolved under the stir condition, then the metal corrosion inhibitors are added, after the materials are evenly stirred, the mixed acid, the surface active agents and the addition agents are added and fully and evenly stirred, and therefore the aluminum magnesium alloy film removing agent is obtained. The aluminum magnesium alloy film removing agent and the manufacturing method of the aluminum magnesium alloy film removing agent have the advantages of being good in effect, highin film removing speed, high in efficiency, free of secondary pollution, safe to use, relatively low in cost and convenient to construct, and being capable of achieving brushing operation at the normal temperature.

Description

technical field [0001] The invention relates to the technical field of aluminum-magnesium alloy surface treatment, more specifically, it relates to an aluminum-magnesium alloy film remover and a preparation method thereof. Background technique [0002] Aluminum-magnesium alloys are widely used. It is famous for its light specific gravity, high strength, toughness and dimensional stability. It has great application prospects in transportation, ships, aviation and other fields. At present, many shipyards are now changing FRP shipbuilding to aluminum-magnesium alloy shipbuilding, and the methods of removing magnesium and aluminum alloys generally use manual polishing, grinding wheels, etc., which has the disadvantages of high labor costs, slow speed, and incomplete film removal. And the problem of unevenness, especially in some dead corners is difficult to deal with, and it is easy to damage the surface of the metal substrate and environmental pollution. For this reason, peopl...

AI Technical Summary

Problems solved by technology

[0003] However, it is difficult to make an aluminum-magnesium alloy film remover that does not damage the substrate. If the film cannot be completely removed, the paint adhesion on the outer layer of the aluminum-magnesium alloy will be poor, which will affect the appearance quality. , and because the aluminum-magnesium alloy also contains elements such as Ti, Cu, Fe, Si, etc., and TiO, which is formed by combining Ti and Si with oxygen at high temperature 2 , SiO 2 etc., are insoluble under general acidic conditions, so it is difficult to achieve film removal without damaging the substrate, because TiO 2 , SiO 2 Etc. film layers will not dissolve under weakly acidic and moderately acidic conditions

Images