[PALEPU, Sridhar, PALEPU, Sridhar, PETERS, Michael, PALEPU, Sridhar, PETERS, Michael, SCHAFFRATH, Norbert, PALEPU, Sridhar, PETERS, Michael, SCHAFFRATH, Norbert, ZEIZINGER, Sabine] Kaiser-Wilhelm-Straße 10047166 Duisburg;ThyssenKrupp Allee 145143 Essen The invention relates, among other things, to a device for avoiding surface flaws, caused by metal dust, on a metal strip to be coated in a continuous hot-dip coating process, wherein at least some segments of the metal strip to be coated can be conveyed through the device in an axial direction, comprising a blowing/sucking unit, wherein the blowing/sucking unit has a plurality of blow-in openings for applying protective gas to the metal strip, wherein a plurality of blow-in openings are or can be arranged on a first side of the metal strip and a plurality of blow-in openings are or can be arranged on a second side of the metal strip, wherein the blowing/sucking unit has a plurality of suction openings for extracting protective gas laden with metal vapor and/or metal dust, wherein a plurality of suction openings are or can be arranged on the first side of the metal strip and a plurality of suction openings are or can be arranged on the second side of the metal strip. The aim of improving the extraction of metal vapor by means of the protective gas and of reducing the dispersion of metal vapor is solved in that the blowing/sucking unit has a blow-in region, in which the blow-in openings are arranged, and a suction region, which is arranged after the blow-in region in the axial direction and in which the suction openings are arranged. The invention relates, among other things, to a device for avoiding surface flaws, caused by metal dust, on a metal strip to be coated in a continuous hot-dip coating process, wherein at least some segments of the metal strip to be coated can be conveyed through the device in an axial direction, comprising a blowing/sucking unit, wherein the blowing/sucking unit has a plurality of blow-in openings for applying protective gas to the metal strip, wherein a plurality of blow-in openings are or can be arranged on a first side of the metal strip and a plurality of blow-in openings are or can be arranged on a second side of the metal strip, wherein the blowing/sucking unit has a plurality of suction openings for extracting protective gas laden with metal vapor and/or metal dust, wherein a plurality of suction openings are or can be arranged on the first side of the metal strip and a plurality of suction openings are or can be arranged on the second side of the metal strip. The aim of improving the extraction of metal vapor by means of the protective gas and of reducing the dispersion of metal vapor is solved in that the blowing/sucking unit has a blow-in region, in which the blow-in openings are arranged, and a suction region, which is arranged after the blow-in region in the axial direction and in which the suction openings are arranged.

[PETERS, Michael, PALEPU, Sridhar, BLUMENAU, Marc, SPELZ, Florian, WESTERFELD, Andreas, MEYRING, Heinrich] Kaiser-Wilhelm-Strasse 100, 47166 Duisburg, DE

[Sridhar Palepu, Michael Peters, Norbert Schaffrath, Sabine Zeizinger] DE Duisburg A device minimizes or eliminates surface flaws caused by metal dust on a metal strip to be coated in a continuous hot-dip coating process, where at least some segments of the metal strip to be coated are conveyed through the device in an axial direction. The device may comprise a blowing/sucking unit with blow-in openings for applying protective gas to the metal strip, which blow-in openings are positionable on first and second sides of the metal strip. The blowing/sucking unit may further include suction openings for extracting protective gas laden with metal vapor and/or metal dust, which suction openings are positionable on the first and second sides of the metal strip. The blowing/sucking unit may have a blow-in region in which the blow-in openings are arranged, and a suction region downstream of the blow-in region in which the suction openings are arranged.

[Sridhar Palepu, Michael Peters, Norbert Schaffrath, Sabine Zeizinger] DE Duisburg A device minimizes or eliminates surface flaws caused by metal dust on a metal strip to be coated in a continuous hot-dip coating process, where at least some segments of the metal strip to be coated are conveyed through the device in an axial direction. The device may comprise a blowing/sucking unit with blow-in openings for applying protective gas to the metal strip, which blow-in openings are positionable on first and second sides of the metal strip. The blowing/sucking unit may further include suction openings for extracting protective gas laden with metal vapor and/or metal dust, which suction openings are positionable on the first and second sides of the metal strip. The blowing/sucking unit may have a blow-in region in which the blow-in openings are arranged, and a suction region downstream of the blow-in region in which the suction openings are arranged.

[Palepu, Sridhar, Peters, Michael] Kaiser-Wilhelm-Strasse 100, 47166 Duisburg, DE Die Erfindung betrifft eine Vorrichtung (10) zum Schmelztauchbeschichten eines Metallbandes (1), mit einem Durchlaufofen zum Durchleiten und Erwärmen des Metallbandes (1), mit einem in Laufrichtung (L) des Metallbandes (1) hinter dem Durchlaufofen angeordneten mit einem mit Schmelze (11.1) gefüllten Gefäß (11), mit einem zwischen dem Durchlaufofen und dem Gefäß (11) angeordneten Rüssel (13) zum Durchleiten und Einleiten des Metallbandes (1) in die Schmelze (11.1) im Gefäß (11), wobei der Rüssel (13) eine Blas-Saug-Einheit (14) mit mindestens einer Einblaseinheit (14.1) und mindestens einer Absaugeinheit (14.2) umfasst, welche mindestens an einer Wandung (13.1), insbesondere an zwei sich gegenüberliegenden Wandungen (13.1) des Rüssels (13) angeordnet sind, wobei die mindestens eine Absaugeinheit (14.2) in Laufrichtung (L) des Metallbandes (1) hinter der mindestens einen Einblaseinheit (14.1) angeordnet ist, wobei die mindestens eine Einblaseinheit (14.1) mindestens eine Schlitzöffnung (14.11) zum Einblasen von Gas in den Rüssel (13) und die mindestens eine Absaugeinheit (14.2) mindestens eine Schlitzöffnung (14.21) zum Absaugen von Gas aus dem Rüssel (13) aufweisen, wobei sich die Schlitzöffnung (14.11, 14.21) quer zur Laufrichtung (L) des Metallbandes (1) erstreckt, wobei die mindestens eine Schlitzöffnung (14.11, 14.21) der Einblaseinheit (14.1) und/oder Absaugeinheit (14.2) derart angeordnet ist, dass sie im Wesentlichen bündig mit der Wandung (13.1) des Rüssels (13) abschließt oder zum Teil in den Rüssel (13) hineinragt. ＜img id="iaf01" file="imgaf001.tif" wi="64" he="112" img-content="drawing" img-format="tif" /＞

[PALEPU, Sridhar, PETERS, Michael, WESTERFELD, Andreas, H LSTRUNG, Joachim] Kaiser-Wilhelm-Strasse 100, 47166 Duisburg, DE

[Palepu, Sridhar, Peters, Michael] Kaiser-Wilhelm-Strasse 100, 47166 Duisburg, DE

[PALEPU, Sridhar, PETERS, Michael, SCHAFFRATH, Norbert, ZEIZINGER, Sabine] Kaiser-Wilhelm-Strasse 100, 47166 Duisburg, DE

[PALEPU SRIDHAR, PETERS MICHAEL, SCHAFFRATH NORBERT, ZEIZINGER SABINE] DE;DE

[PALEPU, Sridhar, PETERS, Michael, WESTERFELD, Andreas, HÜLSTRUNG, Joachim] Kaiser-Wilhelm-Strasse 100, 47166 Duisburg, DE