Descaling method for a metal strip and a descaling...

B - Operations – Transporting – 21 – B

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B21B 45/06 (2006.01) B21B 45/08 (2006.01) B21B 39/08 (2006.01)

Patent

CA 2310796

In a method and a device for descaling a metal strip, the metal strip is guided in a transport direction from a first roll stand to a second roll stand. A descaling device is positioned between the first and second roll stands. A descaling liquid is sprayed onto the metal strip from a working distance relative to the metal strip via the descaling device. The metal strip is moved at the location of the descaling device by a forced deflection amount in a direction transverse to the transport direction via an advancing element. A position of the descaling device is adjusted based on the forced deflection amount such that the working distance stays the same.

Il s'agit d'une méthode de décapage des lames métalliques et d'un dispositif de décapage connexe. Selon cette méthode, la lame métallique est guidée dans une direction donnée par deux porte-rouleau. Un dispositif de décapage est placé entre les deux porte-rouleau. Un liquide de décapage est vaporisé sur la lame métallique d'une distance appropriée par le dispositif de décapage. La lame métallique est acheminée vers la position du dispositif de décapage par fléchissement forcé. La force produisant le fléchissement est exercée perpendiculairement au déplacement de la lame métallique par un élément mobile poussant sur cette dernière. La position du dispositif de décapage est modifiée en fonction de l'ampleur du fléchissement, de sorte que le dégagement entre la lame et le dispositif de décapage reste toujours la même.

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