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

A technology for surface cleaning and cold-rolled strip steel, which is applied to workpiece surface treatment equipment, metal processing equipment, metal rolling, etc., can solve the problems of no cold-rolled strip degreasing line, backward equipment level, uneconomical and other problems, and achieve Good prospects for promotion and application, improved cleanliness, and low-cost effects

Inactive Publication Date: 2015-03-25
SHANDONG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the drawings and specific embodiments of the specification:

[0022] The method for improving the surface cleanliness of cold rolled strip steel of the present invention uses a chemical agent to clean the upper and lower surfaces of the strip steel. The composition of the chemical agent is 85-93% glycolic acid and 5-10% ethanol. %, 1 to 3% of hydroxyethylidene diphosphonic acid, and 1 to 2% of polyoxyethylene nonionic surfactant. The above values ​​are all percentages by volume.

[0023] An achievable way is: dipping the chemical agent with absorbent cotton and making contact with the surface of the strip steel and generating relative movement, so as to realize the cleaning of the surface of the strip steel.

[0024] Another achievable way is: after spraying the chemical agent on the surface of the strip steel, use absorbent cotton to contact the surface of the strip steel and generate relative movement ...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B45/02C23G5/032
CPCY02P70/10
Inventor 胡国雄闻青山程龙刘精华刘爱民刘丽耿宏烨王栋帅奇
Owner SHANDONG IRON & STEEL CO LTD
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