EP 0998992 B1 20040407 - Roll position control in cluster mills
Title (en)
Roll position control in cluster mills
Title (de)
Walzenpositionsregelung in Vielwalzengerüsten
Title (fr)
Dispositif de réglage de la position des cylindres dans des laminoirs à cylindres multiples
Publication
Application
Priority
GB 9820787 A 19980925
Abstract (en)
[origin: EP0998992A2] A dynamic position control means for a cluster mill which has a two-part pre-stressed housing in which the two parts are joined by hydraulic cylinders and associated columns. It comprises an actuating means located between the housings of the mill, so as to vary the relative separation or the relative orientation or both of the two halves of the housing during rolling. The actuating means includes at least one hydraulic lifting ram disposed substantially between the two halves of the housing, and ideally four hydraulic lifting rams each ram disposed at the corner position of a rectangular housing. The hydraulic lifting rams are of the doughnut type, encompassing each of the hydraulic cylinder's columns. The dynamic position control means includes position monitoring means, in particular, four position transducers mounted between the four respective corners of the housings. Control means then adjust the actuating means in response to the position monitoring means or other measured data. <IMAGE>
IPC 1-7
IPC 8 full level
B21B 13/14 (2006.01); B21B 31/02 (2006.01); B21B 31/04 (2006.01); B21B 37/62 (2006.01)
CPC (source: EP)
B21B 13/147 (2013.01); B21B 31/028 (2013.01); B21B 31/04 (2013.01); B21B 37/62 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0998992 A2 20000510; EP 0998992 A3 20021113; EP 0998992 B1 20040407; AT E263637 T1 20040415; DE 69916212 D1 20040513; DE 69916212 T2 20050519; ES 2219996 T3 20041201; GB 2341816 A 20000329; GB 2341816 B 20000906; GB 9820787 D0 19981118; GB 9916050 D0 19990908
DOCDB simple family (application)
EP 99202359 A 19990719; AT 99202359 T 19990719; DE 69916212 T 19990719; ES 99202359 T 19990719; GB 9820787 A 19980925; GB 9916050 A 19990708