EP 1314491 B1 20041208 - Method of operating a stretch-reducing mill and stretch-reducing mill
Title (en)
Method of operating a stretch-reducing mill and stretch-reducing mill
Title (de)
Verfahren zum Betreiben eines Streckreduzierwalzwerks und Streckreduzierwalzwerk
Title (fr)
Mode d'opération d'un laminoir étireur-réducteur et laminoir étireur-réducteur
Publication
Application
Priority
DE 10157742 A 20011124
Abstract (en)
[origin: EP1314491A1] Process for operating a stretch reducing mill for rolling pipes comprises: determining a time point at which the rear end of the pipe leaves the roll stand in the conveying direction; establishing a time interval at which the rear end of the pipe leaves the roll stand, and controlling and regulating a drive of the roll stand. <??>Process for operating stretch reducing mill for rolling pipes comprises: determining a time point at which the rear end (8) of the pipe (2) leaves the roll stand (3d'''') in the conveying direction; establishing a time interval of a prescribed duration in which the time point lies and at which the rear end of the pipe leaves the roll stand; and controlling and regulating a drive (7'''') of the roll stand, so that the rollers of the roll stand are driven at a constant speed during the duration of the time interval. <??>An Independent claim is also included for a stretch reducing mill for rolling pipes. <??>Preferred Features: A tolerance is given for controlling and regulating the drive of the roll stand and is not exceeded. A sensor (10) is arranged in front of the roll stand for acquiring the time point when the rear end of the pipe passes the sensor.
IPC 1-7
IPC 8 full level
B21B 17/14 (2006.01); B21B 35/02 (2006.01); B21B 37/78 (2006.01); B21B 15/00 (2006.01)
CPC (source: EP)
B21B 17/14 (2013.01); B21B 35/025 (2013.01); B21B 37/78 (2013.01); B21B 2015/0014 (2013.01); B21B 2273/18 (2013.01); B21B 2273/20 (2013.01); B21B 2275/04 (2013.01); B21B 2275/06 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
EP 1314491 A1 20030528; EP 1314491 B1 20041208; AT E284279 T1 20041215; CN 1236873 C 20060118; CN 1422709 A 20030611; DE 10157742 C1 20030618; DE 50201715 D1 20050113; ES 2234970 T3 20050701; RU 2300433 C2 20070610; UA 72613 C2 20050315
DOCDB simple family (application)
EP 02022590 A 20021009; AT 02022590 T 20021009; CN 02152811 A 20021125; DE 10157742 A 20011124; DE 50201715 T 20021009; ES 02022590 T 20021009; RU 2002131461 A 20021122; UA 2002119336 A 20021122