Long-lasting aluminum alloy surface treating agent with long shelf life

Abstract

The invention discloses a long-lasting aluminum alloy surface treating agent with a long shelf life. The agent is composed of an A component and a B component; wherein the A component is composed of the following raw materials in parts by weight: 1 to 2 parts of ursolic acid, 2 to 3 parts of triterpenoid saponin, 1 to 2 parts of epoxy chloropropane, 0.7 to 1 part of tetramethoxyl methyl glycoluril, 0.2 to 0.3 part of diatomite, 1 to 2 parts of potassium zirconium carbonate, 2 to 3 parts of diacetone alcohol, 5 to 6 parts of bis(gamma-triethoxysilylpropyl)tetrasulfide, and 52 to 60 parts of deionized water; and the B component is composed of the following raw materials in parts by weight: 0.9 to 1.4 parts of 2-thiol benzimidazole, 0.7 to 2 parts of triammonium molybdate, 0.6 to 1 part of dimethylamino propylamine, 4 to 6 parts of sodium fluosilicate, 2 to 4 parts of film-forming auxiliary agent, 6 to 9 parts of 3-aminopropyltrimethoxyl silane, and 50 to 60 parts of deionized water. The surface treating agent has a long shelf life, and has the advantages of strong anticorrosion and antioxidant performance, user-friendliness, low requirement on temperature, low energy consumption, prominent antirust effect, and little slag generation. The film formed by the surface treating agent has a good stability.

Description

[0001] technical field [0002] The invention mainly relates to the field of surface treatment, in particular to a long-term quality-preserving aluminum alloy surface treatment agent. Background technique [0003] There are many surface treatment methods for aluminum alloys, such as physical methods, chemical methods, physicochemical methods, and comprehensive methods. The commonly used method is the anodic oxidation method, which forms a conversion film on the surface of the aluminum alloy by an electrochemical method. Although this method can improve the long-term quality assurance performance of the aluminum alloy, its ability to adapt to the environment is poor, and the conversion film layer is not uniform enough. The wear resistance has not been improved, and the traditional phosphate conversion and chromate passivation surface treatment technology can obtain good results, but the waste liquid discharged during the treatment process contains zinc, manganese, nickel, c...

AI Technical Summary

Problems solved by technology

The commonly used method is the anodic oxidation method, which forms a conversion film on the surface of the aluminum alloy by an electrochemical method. Although this method can improve the long-term quality assurance performance of the aluminum alloy, its ability to adapt to the environment is poor, and the conversion film layer is not uniform enough. The wear resistance has not been improved, and the traditional phosphate conversion and chromate passivation surface treatment technology can obtain good results, but the waste liquid discharged during the treatment process contains zinc, manganese, nickel, chromium and other heavy metals Carcinogens such as ions and sub-long-term shelf life are very serious to environmental pollution, and the metal surface silanization treatment technology is considered to be expected to replace phosphate conversion treatment because it does not involve substances that endanger the environment, the production process has low energy consumption, and the technology has a wide range of applications. And chromate passivation treatment is the latest development direction of metal surface protection alone