A device and a method for coating an elongated metallic element with a layer of metal
A metal component, metal coating technology, applied in the direction of metal material coating process, coating, hot dip plating process, etc., can solve problems such as interference wiping, uneven coating thickness, etc., to improve quality, improve detection, improve Effects of control and stability
Inactive Publication Date: 2008-05-21
ABB (SCHWEIZ) AG
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Problems solved by technology
If not reduced, these lateral movements will significantly interfere with accurate wiping, resulting in uneven coating thickness
[0006] Also, disturbing forces on the strip can be caused by the wiper device
Method used
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[0032] The following description relates to equipment and methods. Figure 1 shows a device for controlling the thickness of the metal coating on the metal strip 1. The strip 1 is coated with a molten metal layer by continuously conveying the strip through a molten pool. The strip is transported from the molten pool along a predetermined transport path x in the transport direction 3. The predetermined transport path x basically extends between the roller immersed in the molten pool 2 and the upper roller provided after the wiping and stabilizing units 4a, 4b. The wiping and stabilization unit 4a, 4b is suitable for erasing excess molten metal from the strip 1 and stabilizing the strip 1. The wiping and stabilization unit 4a, 4b includes: a wiping member, which includes a first phase winding 6a, 6b for the first phase and a second phase winding 7a, 7b for the second phase; a stabilizing member, which includes a stabilizing winding 8a , 8b; and a common magnetic core 12a, 12b, the co...
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Apparatus and method for controlling the thickness of a metallic coating on an elongated metal element (1), wherein said coating is adapted to be applied by continuously conveying the element through a bath (2) of molten metal , and the element is conveyed from the molten pool along a conveying direction (3) along a predetermined conveying path (x). The apparatus comprises at least one pair of electromagnetic wiping members, one on each side of the element (1) to wipe excess molten metal from the element by application of a moving magnetic field, and each wiping member includes a wiping column (5). The device comprises at least one pair of electromagnetic stabilizing members, one on each side of the element (1) for stabilizing the position of the element relative to the predetermined conveying path (x), said stabilizing members comprising stabilizing columns (5). The wiping member and the stabilizing member on the same side of the element (1) are arranged such that the wiping post (5) and the stabilizing post (5) coincide.
Description
Technical field [0001] The present invention relates to an apparatus for controlling the thickness of a metal coating on an elongated metal element, wherein the coating is applied by continuously conveying the elongated metal element through a molten pool of molten metal, and The components are transferred from the molten pool along a predetermined transfer path in a transfer direction. [0002] The invention also relates to a method for controlling the thickness of a metal coating on an elongated metal element. The coating is applied by continuously conveying the element through a bath of molten metal. [0003] This equipment and this method are particularly advantageous when continuously galvanizing metal strips. The present invention will be described later with reference to this application. However, it should be noted that the present invention can also be applied to galvanizing other metal objects, such as metal wires, rods, tubes or other elongated elements. It should also ...
Claims
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IPC IPC(8): C23C2/24C23C2/20C23C2/40
CPCC23C2/20C23C2/24C23C2/51C23C2/00344C23C2/0035C23C2/5245C23C2/40
Inventor 简-埃里克·埃里克森本特·吕德霍尔姆柳玉敬斯特凡·伊斯拉埃尔松·坦佩戈特·塔尔巴克
Owner ABB (SCHWEIZ) AG