Method and casting roller plant for the semi-endless or endlers rolling by casting of a metal in particular a steel strip which may be transversely separated as required after solidification

Method for semi-endless or endless rolling by casting a metal strand, especially a steel strand (1a), which is cut to length as required after solidification, wherein the cut lengths (20) of cast strand are fed into a roller hearth furnace (2) for heating and homogenizing at rolling temperature and are then fed at rolling temperature into a rolling mill (3) to be rolled out, wherein the continuous casting is continued without interruption during the rolling operation, and wherein a sufficient buffer time for a roll change is maintained in the rolling mill, wherein, to carry out a roll change, the casting rate (Vc) is reduced as a function of the feed rate (Vw) of the rolling mill (3) and/or the roll-changing time, including the roll pass designing, and/or the buffer length of the roller hearth furnace (2) and/or the final rolled thickness after the strand has been cut to length, wherein the final rolled thickness and/or the feed rate (Vw) of the rolling mill is increased between rolling campaigns within a casting sequence after the strand has been cut to length, and wherein a combination of adjustment of the casting rate (Vc) and adjustment of the final rolled thickness is used to optimize the production capacity.

Method for semi-endless or endless rolling by casting a metal strand, especially a steel strand (1a), which is cut to length as required after solidification, wherein the cut lengths (20) of cast strand are fed into a roller hearth furnace (2) for heating and homogenizing at rolling temperature and are then fed at rolling temperature into a rolling mill (3) to be rolled out, wherein the continuous casting is continued without interruption during the rolling operation, and wherein a sufficient buffer time for a roll change is maintained in the rolling mill, wherein, to carry out a roll change, the casting rate (Vc) is reduced as a function of the feed rate (Vw) of the rolling mill (3) and/or the roll-changing time, including the roll pass designing, and/or the buffer length of the roller hearth furnace (2) and/or the final rolled thickness after the strand has been cut to length, wherein the final rolled thickness and/or the feed rate (Vw) of the rolling mill is increased between rolling campaigns within a casting sequence after the strand has been cut to length, and wherein the final rolled thickness is increased by a maximum factor of 2.5.

Method for semi-endless or endless rolling by casting a metal strand, especially a steel strand (a), which is cut to length as required after solidification, wherein the cut lengths (20) of cast strand are fed into a roller hearth furnace (2) for heating and homogenizing at rolling temperature and are then fed at rolling temperature into a rolling mill (3) to be rolled out, wherein the continuous casting is continued without interruption during the rolling operation, and wherein a sufficient buffer time for a roll change is maintained in the rolling mill, wherein, to carry out a roll change, the casting rate (Vc) is reduced as a function of the feed rate (Vw) of the rolling mill (3) and/or the roll-changing time, including the roll pass designing, and/or the buffer length of the roller hearth furnace (2) and/or the final rolled thickness after the strand has been cut to length, wherein the final rolled thickness and/or the feed rate (Vw) of the rolling mill is increased between rolling campaigns within a casting sequence after the strand has been cut to length, and wherein the final rolled thickness is increased by a maximum factor of 2, and the casting rate (Vc) is reduced to a minimum of 30%.