A method and special equipment for improving the surface cleanliness of cold-rolled strip steel

A technology for surface cleaning and cold-rolled strip, applied in workpiece surface treatment equipment, metal processing equipment, metal rolling, etc., can solve the problems of no cold-rolled strip degreasing line, backward equipment, and large investment. Good promotion and application prospects, improve cleanliness, and reduce the effect of residual oil

Inactive Publication Date: 2016-08-24
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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  • A method and special equipment for improving the surface cleanliness of cold-rolled strip steel
  • A method and special equipment for improving the surface cleanliness of cold-rolled strip steel
  • A method and special equipment for improving the surface cleanliness of cold-rolled strip steel

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with accompanying drawing of description and specific embodiment:

[0022] A method for improving the surface cleanliness of cold-rolled steel strips in the present invention uses a chemical agent to clean the upper and lower surfaces of the steel strip. %, 1-3% of hydroxyethylidene diphosphonic acid, and 1-2% of polyoxyethylene nonionic surfactant, the above values ​​are volume percentages.

[0023] One achievable way is to dip the chemical agent into the absorbent cotton and then contact the surface of the steel strip to generate relative motion, so as to clean the surface of the steel strip.

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

[0025] Such as figure 1 , figure 2 As shown, a special eq...

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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 special equipment thereof. Background technique [0002] At present, the steel market has serious overcapacity, and the relatively high-end cold-rolled plate industry is no exception. In this case, users have increasingly strict requirements on product quality. Surface quality is an important aspect of cold-rolled strip product quality, and surface cleanliness is an important measure of the surface quality level of cold-rolled strip. It can be said that the surface cleanliness of cold-rolled strip determines the quality of cold-rolled strip products. grade. 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 anne...

Claims

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Application Information

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Patent Type & Authority Patents(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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