Method for improving surface clearness of cold-strip steel and dedicated device thereof

Abstract

The invention discloses a method for improving surface clearness of cold-strip steel and a dedicated device of the method. The method comprises the steps that the upper surface and the lower surface of the strip steel are cleaned through a chemical agent, and the chemical agent is composed of, by volume, 85 percent to 93 percent of glycolic acid, five percent to 10 percent of ethyl alcohol, one percent to three percent of hydroxyethylidene diphosphonate and one percent to two percent of polyoxyethylene nonionic surfactant. The dedicated device comprises a frame workshop, a fixed plate guide table and a strip pressing plate capable of moving vertically are arranged in the frame workshop, and adjacent faces of the fixed plate guide table and the strip pressing plate are parallel and are each coated with a layer of degreasing cotton. A liquid spray collecting pipe and nozzle system is further arranged on the frame workshop. The surfaces of the cold-strip steel can be cleaned with high speed and high efficiency.

Description

Technical field [0001] The invention relates to the technical field of cold rolling and steel deep processing, in particular to a method for improving the surface cleanliness of cold rolled strip steel and its special equipment. Background technique [0002] At present, the steel market has serious overcapacity, and the relatively high-end cold-rolled plate industry is no exception. Under this circumstance, users have increasingly strict requirements on product quality. Surface quality is an important aspect of the quality of cold-rolled strip products, and surface cleanliness is an important measure of the surface quality of cold-rolled strip steel. It can be said that the surface cleanliness of cold-rolled strip steel determines the product quality of cold-rolled strip steel. Grade. For many cold rolling mills, especially the many small and medium-sized private enterprises, the equipment level is generally relatively backward, and there is no dedicated cold-rolled strip degre...

AI Technical Summary

Problems solved by technology

For many cold-rolling mills, especially many small and medium-sized private enterprises, the equipment level is generally relatively backward, there is no dedicated cold-rolled strip degreasing line or continuous annealing line, and the investment in re-starting the project is too large. uneconomical

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