Device for processing a metal slab, plate or strip, and product produced using this device

Abstract

The invention relates to a device for processing a metal slab, plate or strip, comprising a rolling mill stand with a roll nip between two driveable rolls, the rolling mill stand being designed to roll a metal slab, plate or strip between the rolls. According to a first aspect of the invention, the device is provided with feed means which are designed to guide the slab, plate or strip between the rolls at an angle of between 5° and 45° with respect to the perpendicular to the plane through the center axes of the rolls. According to a second aspect of the invention, the device is provided with one or more following rolling mill stands with driveable rolls, and the rolling mill stand and one or more following rolling mil stands are designed in such a manner that, during use, their rolls have different peripheral velocities, the difference in peripheral velocity amounting to at least 5% and at most 100%.

1 . A device for processing a metal slab, plate or strip, comprising a rolling mill stand with a roll nip between two driveable rolls, the rolling mill stand being designed to roll a metal slab, plate or strip between the rolls, wherein the device is provided with feed means designed to guide the slab, plate or strip between the rolls at an angle of between 5° and 45° with respect to the perpendicular to the plane through the center axes of the rolls.  
     
     
         2 . The device as claimed in  claim 1 , wherein the feed means are designed to guide the slab, plate or strip between the rolls at an angle of between 10° and 25° with respect to the perpendicular to the plane through the center axes of the rolls.  
     
     
         3 . The device as claimed in  claim 1 , wherein the feed means comprise a feed surface or a roller table.  
     
     
         4 . The device as claimed in  claim 1 , wherein the angle between the feed means and the rolling mill stand is adjustable.  
     
     
         5 . The device as claimed in  claim 1 , wherein the rolling mill stand is designed in such a manner that, during use, the rolls have different peripheral velocities, the difference in peripheral velocity amounting to at least 5% and at most 100%.  
     
     
         6 . The device as claimed in  claim 5 , wherein the rolls have a different diameter and/or can be driven at different rotational speeds.  
     
     
         7 . The device as claimed in  claim 1 , wherein the device comprises one or more following rolling mill stands with driveable rolls which are positioned downstream of the rolling mill stand, as seen in the rolling direction.  
     
     
         8 . The device as claimed in  claim 7 , designed to feed the metal slab, plate or strip, during use, at an angle of between 5° and 45°, to at least one of the one or more following rolling mill stands.  
     
     
         9 . The device as claimed in  claim 7 , wherein at least one of the one or more following rolling mill stands is designed in such a manner that, during use, the rolls have different peripheral velocities.  
     
     
         10 . The device as claimed in  claim 7 , wherein at least one of the one or more following rolling mill stands has a roll nip situated outside the plane of symmetry of the roll nip of the rolling mill stand.  
     
     
         11 . The device as claimed in  claim 7 , wherein support rolls are arranged upstream of the one or more following rolling mill stands, as seen in the rolling direction, to support and/or guide the metal slab, plate or strip.  
     
     
         12 . The device as claimed in  claim 1 , provided on both sides with feed means designed to pass the slab, plate or strip between the rolls at an angle of between 5° and 45° with respect to the perpendicular to the plane through the center axes of the rolls, the angle between the feed means being adjustable between 0 and 45° and the rolls being driveable in both directions of rotation.  
     
     
         13 . A device for processing a metal strip, comprising a rolling mill stand with a roll nip between two driveable rolls, the rolling mill stand being designed to roll the metal strip between the rolls, wherein the device comprises one or more following rolling mill stands with driveable rolls, and the rolling mill stand and one or more following rolling mill stands are designed in such a manner that, during use, their rolls have different peripheral velocities, the difference in peripheral velocity amounting to at least 5% and at most 100%.  
     
     
         14 . The device as claimed in  claim 13 , wherein the difference in peripheral velocity is at least 5% and at most 50%.  
     
     
         15 . The device as claimed in  claim 13 , wherein the rolls of the rolling mill stand and the following rolling mill stands have a different diameter and/or are driveable at different rotational speeds.  
     
     
         16 . The device as claimed in  claim 13 , wherein at least one of the one or more following rolling mill stands has a roll nip situated outside the plane of symmetry of the roll nip of the rolling mill stand.  
     
     
         17 . The device as claimed in  claim 13 , wherein support rolls are arranged upstream of the one or more following rolling mill stands, as seen in the rolling direction, to support and/or guide the metal strip.  
     
     
         18 . The device as claimed in  claim 13 , wherein feed means are arranged upstream of the rolling mill stand, as seen in the rolling direction, and the feed means are designed to pass the strip between the rolls at an angle of between 5° and 45° with respect to the perpendicular to the plane through the center axes of the rolls.  
     
     
         19 . A metal slab, plate or strip produced using the device as claimed in  claim 1 , the slab, strip or plate having a substantially uniform shearing over its thickness.  
     
     
         20 . A metal strip produced using the device as claimed in  claim 13 , the strip having a substantially uniform shearing over its thickness.  
     
     
         21 . The metal slab, plate or strip as claimed in  claim 19 , wherein the metal is aluminum or steel or stainless steel or copper or magnesium or titanium or one of their alloys.  
     
     
         22 . The device as claimed in  claim 1 , wherein the feed means are designed to guide the slab, plate or strip between the rolls at an angle of between 15° and 25° with respect to the perpendicular to the plane through the center axes of the rolls.  
     
     
         23 . The device as claimed in  claim 1 , wherein the feed means are designed to guide the slab, plate or strip between the rolls at an angle of substantially 20° with respect to the perpendicular to the plane through the center axes of the rolls.  
     
     
         24 . The device as claimed in  claim 1 , wherein the rolling mill stand is designed in such a manner that, during use, the rolls have different peripheral velocities, the difference in peripheral velocity amounting to at least 5% and at most 50%.  
     
     
         25 . The device as claimed in  claim 1 , wherein the rolling mill stand is designed in such a manner that, during use, the rolls have different peripheral velocities, the difference in peripheral velocity amounting to at least 5% and at most 20%.  
     
     
         26 . The device as claimed in  claim 7 , designed to feed the metal slab, plate or strip, during use, to at least one of the one or more following rolling mill stands, preferably at an angle of between 10° and 25° 
     
     
         27 . The device as claimed in  claim 7 , designed to feed the metal slab, plate or strip, during use, to at least one of the one or more following rolling mill stands, preferably at an angle of between 15° and 25°.  
     
     
         28 . The device as claimed in  claim 7 , designed to feed the metal slab, plate or strip, during use, at an angle of between 5° and 45°, to at least one of the one or more following rolling mill stands, the angle being adjustable.  
     
     
         29 . The device as claimed in  claim 7 , wherein at least one of the one or more following rolling mill stands is designed in such a manner that, during use, the rolls have different peripheral velocities, the rolls having a different diameter  
     
     
         30 . The device as claimed in  claim 7 , wherein at least one of the one or more following rolling mill stands is designed in such a manner that, during use, the rolls have different peripheral velocities, the rolls being driveable at different rotational speeds.  
     
     
         31 . The device as claimed in  claim 1 , provided on both sides with feed means designed to pass the slab, plate or strip between the rolls at an angle of between 10° and 25° with respect to the perpendicular to the plane through the center axes of the rolls, the angle between the feed means being adjustable between 0 and 45° and the rolls being driveable in both directions of rotation.  
     
     
         32 . The device as claimed in  claim 13 , wherein the difference in peripheral velocity is at least at least 5% and at most 20%.  
     
     
         33 . The device as claimed in  claim 13 , wherein feed means are arranged upstream of the rolling mill stand, as seen in the rolling direction, and the feed means are designed to pass the strip between the rolls at an angle of between 10° and 25° with respect to the perpendicular to the plane through the center axes of the rolls.  
     
     
         34 . The device as claimed in  claim 13 , wherein feed means are arranged upstream of the rolling mill stand, as seen in the rolling direction, and the feed means are designed to pass the strip between the rolls at an angle of between 15° and 25° with respect to the perpendicular to the plane through the center axes of the rolls.  
     
     
         35 . The device as claimed in  claim 13 , wherein feed means are arranged upstream of the rolling mill stand, as seen in the rolling direction, and the feed means are designed to pass the strip between the rolls at an angle of between 5° and 45° with respect to the perpendicular to the plane through the center axes of the rolls, the feed means comprising a feed surface or a roller table.