EP 0938388 B1 20030129 - MILL TRAIN WITH AT LEAST ONE ROLL STAND WITH THREE-PHASE CURRENT DRIVING SYSTEM
Title (en)
MILL TRAIN WITH AT LEAST ONE ROLL STAND WITH THREE-PHASE CURRENT DRIVING SYSTEM
Title (de)
WALZSTRASSE MIT ZUMINDEST EINEM WALZGERÜST MIT DREHSTROMANTRIEBSSYSTEM
Title (fr)
TRAIN DE LAMINAGE COMPRENANT AU MOINS UNE CAGE DE LAMINOIR POURVUE D'UN SYSTEME D'ENTRAINEMENT A COURANT TRIPHASE
Publication
Application
Priority
- DE 9702643 W 19971111
- DE 19647637 A 19961118
Abstract (en)
[origin: KR20000053345A] PURPOSE: A mill train with at least one roll stand with three-phase current driving system is provided which an output data of a motor can be more freely designed than the existing mill train. CONSTITUTION: A mill train comprises: one roll stand for rolling the stock; one AC motor operatively coupled to the roll stand to drive same; and a controller for controlling the motor, wherein the motor speed is adjustable between a minimum speed (nmin) and a maximum speed (nmax); wherein the ratio of the maximum speed (nmax) to the minimum speed (nmin) lies within the range 2.0 and 8.0; and wherein the motor has a power output between the minimum speed (nmin) and the maximum speed (nmax) that deviates from the continuous output of the motor at the minimum speed.
IPC 1-7
IPC 8 full level
B21B 37/46 (2006.01)
CPC (source: KR)
B21B 37/46 (2013.01)
Designated contracting state (EPC)
AT BE DE FI NL SE
DOCDB simple family (publication)
AT E231752 T1 20030215; DE 59709242 D1 20030306; EP 0938388 A1 19990901; EP 0938388 B1 20030129; KR 100519242 B1 20051007; KR 20000053345 A 20000825
DOCDB simple family (application)
AT 97951069 T 19971111; DE 59709242 T 19971111; EP 97951069 A 19971111; KR 19997004369 A 19990518