CLSY non heavy metal emission metal surface treatment fluid and preparation method thereof

Abstract

The invention discloses raw material components of a CLSY non heavy metal emission metal surface treatment fluid and a preparation method of a product and belongs to the field of new materials or fine chemical industry. The CLSY non heavy metal emission metal surface treatment fluid has the innovative points that alcohol and water are used as solvents to replace an organic solvent which has influence on environment and belongs to water soluble coatings; compounds of Al3+, Mg2+ and Zn2+ with very strong rust prevention capability are used to replace heavy metal compounds as a rust inhibitor (the Al3+, the Mg2+ and the Zn2+ cannot be oxidized and rusted under any condition); and benzoyl peroxide with stronger passivation ability is used to replace Cr7+, strong resin is used as a film forming agent, and a rough high-temperature-resistant protective paint film can be formed on the metal surface. When the CLSY non heavy metal emission metal surface treatment fluid is prepared and applied, three wastes are not discharged, and various disadvantages of the traditional phosphating solution are completely overcome; an application method is simple and can use all of coating methods including a spraying method, a brushing method, a rolling method and a soaking method; after the product is tested, a good conclusion is obtained; and the CLSY non heavy metal emission metal surface treatment fluid creates an innovation road with good effect, resource saving, energy saving and environmental protection on metal surface treatment.

Description

[0001] 1. Technical field [0002] The invention of this patent relates to the protection technology of iron and steel against rust and corrosion, and belongs to the field of new materials or fine chemicals. [0003] 2. Background technology [0004] For degreasing and rust-free steel components, the first step in the whole anti-corrosion process is to phosphate (passivate) the steel surface. The traditional phosphating process is to immerse the fat-free and rust-free steel components in a phosphating solution containing various heavy metals (Cr, Pb, Cd, etc.), and perform phosphating treatment at a certain temperature. Hexavalent chromium (Cr 6+ ) and tetravalent lead (Pb 4+ ) etc. to passivate the steel surface. After a certain amount of steel components are processed, a large amount of phosphating waste liquid and cleaning liquid are discharged, which seriously pollutes the living and working environment of people and destroys the natural ecological balance. The whole ph...

AI Technical Summary

Problems solved by technology

After a certain amount of steel components are processed, a large amount of phosphating waste liquid and cleaning liquid are discharged, which seriously pollutes the living and working environment of people and destroys the natural ecological balance.

The whole phosphating process is a process of high energy consumption and high pollution. Moreover, the anti-corrosion ability of the steel surface after phosphating treatment is very weak