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Electromagnetic device for coating flat metal products by means of continuous hot dipping, and coating process thereof

A technology for metal products and equipment, applied in the field of continuous hot dip coating process for flat metal products, to achieve the effects of reduced maintenance, good durability and vibration avoidance

Inactive Publication Date: 2011-06-22
DANIELI & C OFF MEC SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Other problems associated with the known mechanical or electromagnetic devices for continuous hot-dip steel strip coating are the duration of said strip in the metallization tank, by more than or equal to 1 second

Method used

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  • Electromagnetic device for coating flat metal products by means of continuous hot dipping, and coating process thereof
  • Electromagnetic device for coating flat metal products by means of continuous hot dipping, and coating process thereof
  • Electromagnetic device for coating flat metal products by means of continuous hot dipping, and coating process thereof

Examples

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Embodiment Construction

[0063] Figure 1 shows an embodiment of a system that uses continuous hot dipping in a molten metal bath to coat flat metal products. Such a system includes:

[0064] The target electromagnetic device 1 of the present invention, when the coating is zinc, is also called a galvanizer, which includes an inductor 3 and a container 11 containing a molten metal bath;

[0065] -Current feeding device 2 for feeding the inductor 3 near the winding coil 4;

[0066] -Heating / melting kiln 5, which is provided with a circulating pump 6 installed in the hearth so as to be intruded into the molten layer material in the kiln;

[0067] -A precipitation filter 7 for purifying molten coating materials and appropriately heated;

[0068] -The molten layer material flows from the galvanizer 1 to the melting furnace 5, then flows from the melting furnace 5 to the precipitation filter 7, and finally returns from the precipitation filter 7 to the galvanizer 1 for circulating flow using appropriately heated pipes...

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Abstract

An electromagnetic device for coating flat metal products by means of continuous hot dipping in a small molten coating bath, arranged over strip guiding rollers, the device being adapted not only to contain the molten coating metal in the bath but further to substantially eliminate leakages and dripping through the lower opening at the bottom of the container, for the strip passing, by means of particular electromagnetic components.

Description

Technical field: [0001] The present invention relates to an electromagnetic device for coating flat metal products, such as steel strips, such as zinc or zinc alloys with coated metal by a continuous hot dip method. The present invention also relates to flat metals Product continuous hot dip coating process. Background technique: [0002] The known steel strip coating process involves passing it vertically through a molten metal bath that is kept semi-suspended by means of an alternating magnetic field. [0003] The traditional hot-dip galvanizing process is continuous and usually requires (as an initial stage) to pre-treat and preheat the steel strip before coating and carefully control its temperature. The pretreatment chemically and thermally improves the adhesion effect of the coating on the steel strip. The heat treatment stage can be a preheating operation under a controlled atmosphere or a melting operation in which the steel strip is immersed in a reducing inorganic flux ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C2/00C23C2/30C23C2/24
CPCC23C2/30C23C2/24C23C2/003C23C2/006C23C2/0035C23C2/00362C23C2/00342C23C2/0036C23C2/40
Inventor 法比奥·古斯塔尼安德雷·库杜缇安纳多利·柯列斯尼金克维克多利亚·布尔雅克安娜斯塔莎·柯列斯尼金克米罗德·帕里克阿尔弗雷德·博洛尼
Owner DANIELI & C OFF MEC SPA