Apparatus for continuously producing a rolled metal strip from a metal melt

Abstract

The invention relates to a method and to a device for producing a rolled metal strip from a molten metal by producing a cast metal strip in a strip casting device and then rolling the undivided metal strip in a roll stand to the final thickness of the strip. For controlling the course of the strip, strip guiding devices are provided upstream of the roll stand. In order to provide a stable insertion of the metal strip into the roll stand at the input side of the roll stand or at the site of rolling in accordance with the strip dimensions, the strip guidance interferes or is carried out at a distance of 1.0 to 10.0 times the strip width, preferably at a distance of 1.5 to 5.0 times the strip width, upstream of the roll stand.

1 - 21 . (canceled)  
   
   
       22 . Apparatus for continuous production of a rolled metal strip comprising: 
 a strip-casting device for producing a cast metal strip having an initial strip thickness when produced of less than 20 mm, and the strip passing from the strip casting device along a path;    at least one rolling stand downstream of the strip-casting device along the path and the rolling stand is adapted for in-line roll deforming of the cast, undivided metal strip;    a strip-diverting device along the path of the metal strip between the strip-casting device and the rolling stand, wherein the strip-diverting device is spaced at a distance of 1.0 times to 10.0 times the width of the strip upstream of the rolling stand.    
   
   
       23 . The apparatus of  claim 22 , wherein the strip-casting device comprises a two-roll casting machine for producing a cast metal strip.  
   
   
       24 . The apparatus of  claim 22 , wherein the strip casting device produces a cast metal strip having an initial thickness in the range between 1 mm and 12 mm.  
   
   
       25 . The apparatus of  claim 22 , wherein the strip diverting device is at a distance upstream of the roll stand along the path of the metal strip of between 1.5 times to 5.0 times the width of the strip.  
   
   
       26 . The apparatus of  claim 23 , wherein the strip diverting device comprises a multi-roller driver for the strip.  
   
   
       27 . The apparatus of  claim 22 , further comprising a metal strip conveyor for conveying the strip along the path; 
 adjustment and control devices at the strip diverting device and connected with the conveyor for setting the strip tension of the metal strip conveyed by the conveyor at between 2.0 MPa and 15 MPa between the strip diverting device on the one hand and one of the rolling stand, a strip running centering aid or another element on the path of the strip.    
   
   
       28 . The apparatus of  claim 27 , wherein the conveyor comprises cooperating pinch rolls of a multi-roll driver for the strip.  
   
   
       29 . The apparatus of  claim 27 , wherein the strip tension set by the adjustment and control devices is between 4.0 MPa and 8.0 MPa.  
   
   
       30 . The apparatus of  claim 27 , further comprising a strip position measuring device connected with the strip diverting device; 
 the metal strip conveyor is at the strip diverting device;    the metal strip conveyor having at least one element that is rotatably supported in a pivotable bearing device and the bearing device is pivotable to adjust the direction of the at least one element to affect the strip running direction, and the conveyor and the at least one element supported on the conveyor are controllable and positionable for influencing the strip running direction on the path, and control elements for influencing the strip running direction.    
   
   
       31 . The apparatus of  claim 30 , wherein the conveyor comprises a multi-roll driver on the path of the strip for acting on the strip, the conveyor element that is rotatably supported in the pivotable bearing device comprises one roll of the multi-roll driver, the pivotable bearing device supporting the one roll for allowing adjustment of the orientation of the one roll for redirecting the strip direction along the path.  
   
   
       32 . The apparatus of  claim 31 , wherein the strip diverting device includes the pivotable bearing device which is pivotable about an axis transverse to the axis of the one roll supported at the pivotable bearing device; 
 curved guides displaceably supporting the pivotable bearing device and an adjustment device for adjusting the position of the pivotable bearing device along the curved guides.    
   
   
       33 . The apparatus of  claim 22 , further comprising guides on which the strip diverting device is supported; a displacement device for displacing the strip diverting device for setting the distance of the diverting device from the rolling stand, and the displacement device is between the strip diverting device and the guides.  
   
   
       34 . The apparatus of  claim 27 , further comprising a device for producing strip pretension in the metal strip and being located along the path of the strip between the strip casting device and the strip diverting device.  
   
   
       35 . The apparatus of  claim 34 , wherein the device for producing strip pretension comprises a looping pit into which a loop of the strip may hang.  
   
   
       36 . The apparatus of  claim 34 , wherein the device for producing strip pretension comprises a strip supporting device which is horizontal and subject to friction.  
   
   
       37 . The apparatus of  claim 36 , wherein the device for producing strip pretension comprises a roller table having braking rolls acting thereon.  
   
   
       38 . The apparatus of  claim 35 , wherein the strip supporting device has an active length along the path of the strip that is at least 1.5 times the strip width.  
   
   
       39 . The apparatus of  claim 36 , wherein the strip supporting device has an active length along the path of the strip that is at least 2.5 times the strip width.  
   
   
       40 . The apparatus of  claim 22 , further comprising a strip running centering aid arranged downstream of the rolling stand or between the strip diverting device and the rolling stand along the path of the strip.  
   
   
       41 . The apparatus of  claim 40 , wherein the strip running centering aid comprises a non-divertible two roll or three roll driver.  
   
   
       42 . The apparatus of  claim 41 , wherein the strip diverting device and the strip running centering aid are at a distance from each other of 1.0 times to 10.0 times the strip width.  
   
   
       43 . The apparatus of  claim 40 , wherein the strip diverting device and the strip running centering aid are at a distance from each other of 1.5 times to 5.0 times the strip width.