EP 2085488 B1 20100922 - Device for blowing gas onto a surface of a material in running strips
Title (en)
Device for blowing gas onto a surface of a material in running strips
Title (de)
Vorrichtung zum Blasen von Gas auf eine Fläche von durchlaufendem Bandmaterial
Title (fr)
Dispositif de soufflage de gaz sur une face d'un matériau en bande en défilement
Publication
Application
Priority
- FR 0709166 A 20071228
- FR 0805843 A 20081022
Abstract (en)
[origin: EP2085488A1] The device for blowing a gas on one side of a rolling strip material (15), comprises a hollow box (20) equipped with tubular nozzles (30) directed towards the side of the strip material. The hollow box has a surface (22) on the turned side facing the strip material. The surface has a profile (P) that is variable in a given direction (D) symmetrical to a median plane (Q) perpendicular to the plane of the strip. The tubular nozzles are fixed at the foot of the variable profile so that their respective axis is mainly orthogonal to the variable profile, and have a respective length. The device for blowing a gas on one side of a rolling strip material (15), comprises a hollow box (20) equipped with tubular nozzles (30) directed towards the side of the strip material. The hollow box has a surface (22) on the turned side facing the strip material. The surface has a profile (P) that is variable in a given direction (D) symmetrical to a median plane (Q) perpendicular to the plane of the strip. The tubular nozzles are fixed at the foot of the variable profile so that their respective axis is mainly orthogonal to the variable profile, and have a respective length such that outlet openings of the nozzles are in a common plane (R) parallel to the plane of the strip. The variable profile is a dihedral profile providing a constant inclination of the tubular nozzle on both sides of the median plane, or a broken line (P') or curvilinear profile (P'') providing variable inclinations of tubular nozzle on both sides of the median plane. The dihedral profile is convex so that the partition of the variable profile surface connects the shortest distance at the plane of the strip, and the dihedral profile is concave so that the partition of the variable profile surface connects the largest distance at the plane of the strip. The dihedral profile has a tip angle (alpha ) of 150-170[deg] . The blowing device has a wall including a tulip-shaped opening inside the hollow box and the foot of each tubular nozzle. Each tubular nozzle has a free end with a conical opening. The two variable profile surfaces are symmetrical with respect to the plane of the passage of the strip. The tubular nozzles of the two hollow boxes are implanted so that the points of impact of blown gas on the rolling strip are staggered one after other.
IPC 8 full level
C21D 1/613 (2006.01); B21B 45/02 (2006.01); C21D 1/667 (2006.01); C21D 9/46 (2006.01); C21D 9/573 (2006.01); F26B 13/00 (2006.01)
CPC (source: EP US)
B21B 45/0209 (2013.01 - EP US); C21D 1/613 (2013.01 - EP US); C21D 1/667 (2013.01 - EP US); C21D 9/46 (2013.01 - EP US); C21D 9/573 (2013.01 - EP US); C21D 9/5735 (2013.01 - EP US); F26B 13/10 (2013.01 - EP US); F26B 21/004 (2013.01 - EP US); C21D 9/63 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2925920 A1 20090703; AT E482293 T1 20101015; BR PI0821703 A2 20150616; BR PI0821703 A8 20161011; BR PI0821703 A8 20161101; BR PI0821703 B1 20170606; CA 2710590 A1 20090827; CA 2710590 C 20120313; CN 101910424 A 20101208; CN 101910424 B 20120905; DE 602008002696 D1 20101104; EP 2085488 A1 20090805; EP 2085488 B1 20100922; FR 2925919 A1 20090703; FR 2925919 B1 20100611; RU 2437944 C1 20111227; US 2010269367 A1 20101028; WO 2009103891 A2 20090827; WO 2009103891 A3 20091112
DOCDB simple family (application)
FR 0805843 A 20081022; AT 08291203 T 20081217; BR PI0821703 A 20081217; CA 2710590 A 20081217; CN 200880123289 A 20081217; DE 602008002696 T 20081217; EP 08291203 A 20081217; FR 0709166 A 20071228; FR 2008001761 W 20081217; RU 2010131484 A 20081217; US 74687208 A 20081217