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Processing method for removing zinc in roller body

A treatment method and technology of the roll body are applied in the field of zinc stripping treatment of the roll body, which can solve the problems of low utilization rate of the roll body, waste, affecting the surface quality of the steel strip, etc., and achieve the effect of improving the service life and utilization rate and reducing the cost.

Active Publication Date: 2011-09-14
SHANGHAI JUSN SURFACE TECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the main components entering the zinc pot, such as the sinking roller and the surface coating of the stabilizing roller, have a relatively short period of use, generally about 15 to 25 days
The sinking roll and stabilizing roll must be replaced after use, otherwise the quality of the steel strip surface and the quality of galvanizing will be affected, thereby affecting the normal operation of the entire line
[0004] In the prior art, the used sinking rolls and stabilizing rolls are usually discarded and no longer used, resulting in a lot of waste, it is difficult to make full use of the roll body, and the utilization rate of the roll body is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 16

[0021] Using the treatment agent in Example 1, the treatment agent was heated to 80° C., and then the roller body was put into the treatment agent for dezincification treatment. After the treatment is completed, the roller body is taken out, and the phosphoric acid is used to spray the roller body to neutralize the lye adhering to the phosphoric acid and the surface of the roller body, and the roller body is cleaned with clean water.

Embodiment 17

[0023] Using the treatment agent in Example 5, the treatment agent was heated to 92° C., and then the roller body was put into the treatment agent for dezincification treatment. After the treatment is completed, the roller body is taken out, and the phosphoric acid is used to spray the roller body to neutralize the lye adhering to the phosphoric acid and the surface of the roller body, and the roller body is cleaned with clean water.

Embodiment 18

[0025] Using the treatment agent in Example 8, heat the treatment agent to 95° C., and then put the roller body into the treatment agent for dezincification treatment. After the treatment is completed, the roller body is taken out, and the phosphoric acid is used to spray the roller body to neutralize the lye adhering to the phosphoric acid and the surface of the roller body, and the roller body is cleaned with clean water.

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PUM

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Abstract

The invention discloses a finishing agent for removing zinc in a roller body, which is characterized by comprising the following components by weight percent: 20%-55% of NaOH, 1%-10% of stabilizing agent, 1%-10% of corrosion inhibitor and the balance of water. By adopting the finishing agent and a processing method for removing zinc in the roller body, the performance of the roller can be restored so as to be same as the performance of a new roller, so that the roller can be regenerated and used continuously, and the finishing agent and the processing method can be used by the roller repeatedly, so that the service life of the roller is prolonged, and the utilization ratio of the roller is improved. By utilizing the finishing agent and processing method for removing zinc in the roller body, the cost of a steel plant can be lowed greatly.

Description

technical field [0001] The invention relates to a treatment method for dezincification of a roller body. Background technique [0002] The current steel industry has encountered many problems, such as the market’s increasing demand for steel products, the rising price of iron ore, and the requirements of relevant state departments for environmental protection and low-carbon, etc., all of which put forward higher requirements for steel mills in terms of cost control. requirements. [0003] In the production process of cold rolling line in steel mills, hot-dip galvanizing of steel strip accounts for a large proportion. The zinc pot part is the top priority of the whole line. Due to the presence of zinc liquid in the zinc pot, the working environment in the zinc pot is quite harsh. As a result, the main components entering the zinc pot, such as the sinking roll and the surface coating of the stabilizing roll, have a relatively short period of use, generally about 15 to 25 da...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/18C23G1/19
Inventor 王建康
Owner SHANGHAI JUSN SURFACE TECH ENG