EP 0372439 A3 19921202 - PROCESS CONTROL METHOD FOR A CONTINUOUS ROLLING MILL
Title (en)
PROCESS CONTROL METHOD FOR A CONTINUOUS ROLLING MILL
Publication
Application
Priority
DE 3841367 A 19881208
Abstract (en)
[origin: EP0372439A2] By means of this process control method, the actual working groove diameters (Di) of a continuous rolling mill, having a plurality of roll stands (1, 2, 3, i) and rolls (4 to 9) having individual drives, as well as the groove wear (dDi) are to be detected automatically. The groove diameters are continuously determined as a quotient of the actual bar velocity (vi) of the rolled stock (26) and the actual roll speed (ni . üi). When the rolling mill is run in, reference groove diameters (D0i) are acquired and stored for each roll (4 to 9) and each roll stand (1 to 3,i). The groove wear can be determined continuously by subtraction between the reference groove diameter (D0i) and the groove diameter (Di) actually working.
IPC 1-7
IPC 8 full level
B21B 37/00 (2006.01); B21B 37/52 (2006.01)
CPC (source: EP KR)
B21B 37/00 (2013.01 - EP); B21B 37/18 (2013.01 - KR); B21B 37/24 (2013.01 - KR); B21B 37/52 (2013.01 - EP); B21B 2267/24 (2013.01 - EP)
Citation (search report)
- [Y] DE 2217423 A1 19731025 - HERRMANN ROLF
- [XD] EP 0004598 A2 19791017 - BBC BROWN BOVERI & CIE [DE]
- [A] DE 1452051 A1 19690710 - SCHLOEMANN AG
- [A] GB 1156998 A 19690702 - ASEA AB [SE]
- [Y] FACHBERICHTE HÜTTENPRAXIS METALLWEITERVERARBEITUNG Bd. 22, Nr. 2, 1984, Seiten 100 - 105 W.BLECKMANN 'Leittechnik in Kontistrassen'
- [A] BBC NACHRICHTEN. Nr. 8, 1979, MANNHEIM DE Seiten 274 - 282 E.PROBST ET AL. 'Längskraftkontolliertes Walzen'
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0372439 A2 19900613; EP 0372439 A3 19921202; DE 3841367 A1 19900613; KR 900009157 A 19900702
DOCDB simple family (application)
EP 89122265 A 19891202; DE 3841367 A 19881208; KR 890018077 A 19891207