Environment friendly wet-leveling liquid composite

Abstract

The invention relates to an environment friendly wet-leveling liquid composite comprising the following components in percentage: (1) 5% to 30% of organic acid; (2) 5% to 40% of organic amine; (3) 1% to 15% of corrosion inhibitor; (4) 1% to 15% of film former; (5) 1% to 15% of film forming promoter; (6) 1% to 10% of lubricant; (7) 0.1% to 1.5% of surfactant; and (8) 10% to 40% of water. By using the formulation of organic acid and organic amine as rust inhibitor, the invention, belonging to composite wet-leveling liquid, is superior in the performance of cleaning and rust prevention; and by adding a proper amount of lubricant, the service life of rollers can be prolonged, and the rust-proof life is more than 15 days. Accordingly, the invention is suitable for medium-size and small-size rolling plants incapable of performing the next procedure immediately after the leveling procedure.

Description

technical field [0001] The invention relates to a wet leveling liquid used in a leveling machine in the manufacturing process of cold-rolled steel plates. technical background [0002] After the rolled plate and strip meet the specified thickness requirements and complete annealing, they are also temper rolled. Leveling is the most important process in the plate and strip finishing line, and the reduction rate of leveling is 0.5%-3.0%. The purpose of leveling is: (1) to improve the flatness of the strip after retreating; (2) to eliminate the yield platform of the annealed strip and adjust its required mechanical properties; (3) to make the surface of the strip reach the required roughness. [0003] There are two types of leveling: dry leveling and wet leveling. Dry leveling does not require leveling fluid, while general leveling machines use wet leveling. Wet leveling requires the use of leveling liquid. Since there are slight pollutants such as dust and oil spots on the ...

AI Technical Summary

Problems solved by technology

[0004] At present, due to their own reasons, most private enterprises cannot immediately enter the next process for electroplating or hot-plating after flattening. They are stored in the factory for at least two or three days, and the elderly can reach half a month. This is against the traditional The wet leveling liquid puts forward more stringent anti-rust requirements. After half a month of storage, no macula will affect the next process. The anti-rust period of the wet leveling liquid sold in most markets is generally 24 hours, which cannot meet the long-term anti-rust on site. requirements

[0005] Chinese patent CN1493713 discloses a wet leveling liquid, which is not bad for large steel mills, but it is prone to macula

[0006] Chinese patent CN101092693 discloses a kind of wet leveling liquid, although it improves the shortcoming of easily producing macula, it still cannot meet the requirements of small and medium-sized steel mills for antirust performance