Die for a continuous casting installation

Abstract

A die (for a continuous casting installation) that includes a movably mounted frame having a first subframe and a second subframe; a first broad-side insert which is positioned on the first subframe; and a second broad-side insert which is positioned on the second subframe. Narrow sides each having a narrow-side copper plate and abuting the two broad-side inserts are positioned between the two broad-side inserts. The die also has: a clamping device which is designed to exert, on the subframes, a clamping force that acts between the subframes; and an oscillation drive which is designed to make the frame oscillate in and counter to a horizontal width direction (H) relative to the narrow sides. A spring band assembly which guides the subframes is positioned on each subframe on sides which are opposite one another in the width direction (H).

1 . A mold for a continuous casting installation, the mold comprising
 a movably mounted frame with a first subframe and a second subframe which is spaced apart from the first subframe,   a first broad-side insert which is arranged on a side of the first subframe facing the second subframe,   a second broad-side insert which is arranged on a side of the second subframe facing the first subframe,   narrow sides which are arranged between the two broad-side inserts and each have a narrow-side copper plate, which lies against the two broad-side inserts,   a clamping device which is designed to exert, on the subframes, a clamping force acting between the subframes, and   an oscillation drive which is designed to move the frame in an oscillating manner in and counter to a horizontal width direction (H) relative to the narrow sides,   wherein a respective spring band assembly which guides the subframe is arranged on each subframe on opposite sides in the width direction (H),   wherein each narrow-side copper plate has two end faces which each lie against a broad-side insert and have a lubrication reducing the friction with the broad-side insert.   
     
     
         2 . The mold as claimed in  claim 1 , wherein a first oscillation drive has, preferably in the form of a hydraulic cylinder, which is arranged on a first longitudinal frame of the mold, on a side of the first subframe facing away from the second subframe, and is coupled to the first subframe, and a second oscillation drive, preferably in the form of a hydraulic cylinder, which is arranged on a second longitudinal frame of the mold, on a side of the second subframe facing away from the first subframe, and is coupled to the second subframe. 
     
     
         3 . The mold as claimed in  claim 2 , wherein broad-side foot rollers are arranged on the underside of each longitudinal frame, the roller axles of which in each case run in the width direction (H) and which are designed for guiding a metal casting strand emerging from the mold. 
     
     
         4 . The mold as claimed in  claim 1 , wherein each end face grooves in which a lubricant as the lubrication can be supplied to the end face. 
     
     
         5 . The mold as claimed in  claim 1 , wherein each end face has, as the lubrication, a wear strip, preferably made of sintered metal, with an integrated lubricant, preferably a solid lubricant. 
     
     
         6 . The mold as claimed in  claim 1 , wherein at least one, preferably each, narrow-side copper plate has a rounding or a chamfer at the edges which are in contact with the broad-side copper plates and are substantially at a right angle to the horizontal width direction (H), wherein the rounding has a radius of between 0.1 mm and 3 mm, preferably between 0.3 mm and 1 mm, and the chamfer has a dimension of between 0.1 mm and 3 mm, preferably between 0.3 mm and 1 mm. 
     
     
         7 . The mold as claimed in  claim 1 , wherein the first broad-side insert has a support plate arranged on the first subframe and a broad-side copper plate arranged on the support plate and the second broad-side insert has a support plate arranged on the second subframe and a broad-side copper plate arranged on the support plate. 
     
     
         8 . The mold as claimed in  claim 1  with two compensators for each subframe, through which cooling water can be supplied to the subframe and cooling water can be dissipated from the subframe and horizontal movements of the subframe can be compensated for. 
     
     
         9 . The mold as claimed in  claim 1 , wherein the clamping device has two clamping units which are arranged on the frame on opposite sides in the width direction (H) and are designed to exert, on the subframes, a respective clamping force acting between the subframes. 
     
     
         10 . The mold as claimed in  claim 9 , wherein the clamping units each have a pivoting unit allowing movements of the subframes in the horizontal width direction at least temporarily in a different direction. 
     
     
         11 . The mold as claimed in  claim 9 , wherein each clamping unit has a hydraulic cylinder for producing the clamping force. 
     
     
         12 . The mold as claimed in  claim 1 , wherein the clamping force is set by a control and/or regulating device in such a way that a contact pressure between each narrow side and the broad-side copper plates in contact therewith is set in such a way that the contact pressure immediately before the start of the oscillation and during the oscillation, by the oscillation drive, has a value of between 0 and 1 N/mm 2 , preferably 0 and 0.5 N/mm 2 .