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Zinc pot stabilization process control method for hot galvanizing procedure

A hot-dip galvanizing, artificially controlled technology, applied in hot-dip galvanizing process, metal material coating process, coating and other directions, can solve problems such as affecting quality, suppress production and flow, reduce disturbance and flow impact, and stabilize heat. Compensation effect

Inactive Publication Date: 2018-03-06
BEIJING SHOUGANG COLD ROLLED SHEET
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a zinc pot stabilization process control technology applied to the hot-dip galvanizing link to solve the problems in the prior art due to the impurities generated in the complicated working environment of the hot-dip galvanized zinc pot and the production process. Zinc slag adheres to the galvanized surface, thereby affecting the technical problem of its quality, and achieves the technical effect of improving the quality of the sheet metal attached to the strip steel surface in the hot-dip galvanizing process

Method used

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  • Zinc pot stabilization process control method for hot galvanizing procedure
  • Zinc pot stabilization process control method for hot galvanizing procedure
  • Zinc pot stabilization process control method for hot galvanizing procedure

Examples

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Embodiment 1

[0024] The embodiment of the present invention provides a zinc pot stabilization process control method applied to the hot-dip galvanizing link, such as figure 1 As shown, the method includes:

[0025] Step 10: Obtain the current heating power according to the induction heater 5;

[0026] Specifically, the processing power obtained by the induction heater 5 is the current heating power to keep the temperature inside the zinc pot 1 constant.

[0027] Step 20: setting a first heating power, the first heating power is less than or equal to the current heating power, and keeping the first heating power constant;

[0028] Specifically, the first heating power is set according to the current power obtained by the induction heater 5, the first heating power is less than or equal to the current power, and the first heating power is kept constant to maintain The temperature in the zinc pot 1 is kept constant, the stable state of the zinc liquid 2 in the zinc pot 1 is maintained, and ...

Embodiment 2

[0042] A method of zinc pot stabilization process control applied to the hot-dip galvanizing link of the present invention is described in detail below, please refer to figure 2 , image 3 ,details as follows:

[0043] In the embodiment of the present invention, a zinc pot stabilization process control method applied to the hot-dip galvanizing process is provided, which is mainly aimed at the current hot-dip galvanizing process for cold-rolled sheets. Some impurities will affect the quality of the galvanized surface. Zinc slag 7 is the most typical defect, such as image 3 As shown, the zinc slag 7 accumulates at the bottom of the furnace nose 6, and when the strip steel 4 enters the zinc liquid 2 through the furnace nose 6, the zinc slag 7 is easily brought in together, resulting in a reduction in the surface quality of the strip steel 4 electrogalvanized sheet and affecting downstream products the quality of. Through a zinc pot stabilization process control method applie...

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Abstract

The invention discloses a zinc pot stabilization process control method for a hot galvanizing procedure. The method comprises the following steps: acquiring current heating power according to an induction heater; setting first heating power, and keeping the first heating power constant, wherein the first heating power is smaller than or equal to the current heating power; increasing the galvanizing pot feeding temperature of strip steel to 10-30 DEG C which is higher than current molten zinc detection temperature, and keeping the zinc pot feeding temperature of the strip steel constant. By adopting the method, hot flow impact caused by an intense heating state of a zinc pot inductor is reduced, generation and flowing of zinc dregs are inhibited, and the technical effect that the quality ofa plate is affected by the steel surface of an adhesion strip in the hot galvanizing procedure is avoided.

Description

technical field [0001] The invention relates to the field of hot-dip galvanizing technology for cold-rolled sheets, in particular to a zinc pot stabilization process control method applied to the hot-dip galvanizing link. Background technique [0002] In the galvanized sheet production line, high-quality products require a good surface quality, especially the surface quality after galvanizing requires smoothness and no defects. [0003] However, in the process of realizing the technical solution of the invention in the embodiment of the present application, the inventor of the present application found that the above-mentioned prior art has at least the following technical problems: [0004] In actual production, due to the complex working environment of the molten zinc pot used in hot-dip galvanizing, some impurities will inevitably be produced to affect the quality of the galvanized surface. Zinc slag is the most typical defect among them. The zinc produced in production ...

Claims

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Application Information

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IPC IPC(8): C23C2/06C23C2/40
Inventor 段晓东马兵智李勇勇源娄德诚张军赵建国
Owner BEIJING SHOUGANG COLD ROLLED SHEET
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