Strip steel continuous hot-dip galvanizing system

A hot-dip galvanizing and hot-dip galvanizing technology, which is applied in the hot-dip galvanizing process, coating, metal material coating process, etc., can solve problems such as missing plating in the furnace nose area, improve product surface quality, and avoid quality problems , The effect of solving the problem of missing plating

Inactive Publication Date: 2018-11-20
BAOSTEEL ZHANJIANG IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can play a certain role, but it is not a comprehensive solution to completely solve the problem of missing plating in the furnace nose area

Method used

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  • Strip steel continuous hot-dip galvanizing system
  • Strip steel continuous hot-dip galvanizing system

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Embodiment Construction

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. And the features in the embodiments can be combined with each other.

[0026] Such as figure 1 , 2As shown, a continuous hot-dip galvanizing system for strip steel includes: pre-plating tension roll chamber 12, sealing device 13, pre-plating turning roll chamber 14, pre-plating turning roll 15, expansion joint 16, hot-dip coating channel 17 , exhaust fan 22, zinc ash filter 21, furnace nose 18, protective gas supply device (not shown in the figure), release pipeline 23, release control solenoid valve 24, zinc pot sinking roller device 20 and zinc pot 19, zinc pot The lower end of the pot sinking roller device 20 and the furnace nose 18 is immersed in the zinc liquid in the zinc pot 19, the upper end of the furnace nose 18 ...

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Abstract

The invention discloses a strip steel continuous hot-dip galvanizing system. The system comprises a before-plating tensioning roll chamber, a sealing device, a before-plating turning roll chamber, a before-plating turning roll, an expansion joint, a hot-dip galvanizing channel, an exhaust fan, a zinc ash filter, a furnace nose, a protective bas supply device, bleeding pipelines, bleeding control electromagnetic valves, zinc pot sink roll equipment and a zinc pot. The upper portion of the hot-dip galvanizing channel is widened to the two sides, ash collecting grooves are formed in the widened portions on the two sides correspondingly, and ash cleaning holes are formed in the side walls of the ash collecting grooves correspondingly. The strip steel continuous hot-dip galvanizing system provided by the patent is not only applicable to hot-dip galvanizing and alloying hot-dip galvanizing, but also applicable to production of other hot-dip plating products including hot-dip galvanizing products, hot-dip aluminum plating products and hot-dip magnesium plating products. The skip plating problem in a strip steel continuous furnace nose area can be solved through technological selection andadjustment, regular-strength products such as IF steel and CQ materials can be produced, ultrahigh-strength steel products such as QP steel, CP steel, DP steel and TRIP steel can also be produced, and in addition, the problem of skip plating of the furnace nose area can be solved when the ultrahigh-strength steel products are produced.

Description

technical field [0001] The invention relates to the technical field of continuous hot-dip galvanizing for steel strips, in particular to a continuous hot-dip galvanizing system for steel strips. Background technique [0002] Hot-dip galvanized products have excellent corrosion resistance and have been developed for hundreds of years. At present, continuous hot-dip coating of strip steel is used more and more in automobiles. With the improvement of safety, environmental protection, energy saving and other requirements, the demand for high-strength steel, especially ultra-high-strength steel hot-dip galvanized automotive sheet, has shown an explosive growth trend in recent years. However, many problems have been encountered in the actual production of ultra-high-strength steel hot-dip coated strips, and the more common problem is missing plating. [0003] Patent EP2927342A1 extracts the protective gas from the annealing furnace for dehumidification and then sends it into the...

Claims

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Application Information

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IPC IPC(8): C23C2/06C23C2/40
CPCC23C2/003C23C2/06C23C2/40
Inventor 张理扬丁勇生王骏飞路智凤王超
Owner BAOSTEEL ZHANJIANG IRON & STEEL CO LTD
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