| 54 |
Titel |
TI |
[DE] VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON STAHLBAND MIT KALTWALZEIGENSCHAFTEN
[EN] PROCESS AND DEVICE FOR PRODUCING A STEEL STRIP WITH THE PROPERTIES OF A COLD-ROLLED PRODUCT
[FR] PROCEDE ET DISPOSITIF DE PRODUCTION D'UNE FEUILLE D'ACIER PRESENTANT LES PROPRIETES D'UN PRODUIT LAMINE A FROID |
| 71/73 |
Anmelder/Inhaber |
PA |
MANNESMANN AG, DE
|
| 72 |
Erfinder |
IN |
BLECK WOLFGANG, DE
;
PLESCHIUTSCHNIGG FRITZ-PETER, DE
;
SPLINTER PAUL, DE
;
VON HAGEN INGO, DE
|
| 22/96 |
Anmeldedatum |
AD |
21.09.1995 |
| 21 |
Anmeldenummer |
AN |
95932632 |
|
Anmeldeland |
AC |
EP |
|
Veröffentlichungsdatum |
PUB |
06.05.1999 |
33
31
32 |
Priorität |
PRC
PRN
PRD |
DE
19520832
31.05.1995
|
33
31
32 |
PRC
PRN
PRD |
DE
4438783
20.10.1994
|
33
31
32 |
PRC
PRN
PRD |
DE
9501347
21.09.1995
|
| 51 |
IPC-Hauptklasse |
ICM |
B21B 1/46
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| 51 |
IPC-Nebenklasse |
ICS |
C21D 8/04
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IPC-Zusatzklasse |
ICA |
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IPC-Indexklasse |
ICI |
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|
Gemeinsame Patentklassifikation |
CPC |
B21B 1/26
B21B 1/34
B21B 1/463
B21B 1/466
B21B 2201/04
B21B 2201/12
B21B 2201/14
B21B 45/004
B21B 45/0218
C21D 8/0215
C21D 8/0226
Y10T 29/49991
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|
MCD-Hauptklasse |
MCM |
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MCD-Nebenklasse |
MCS |
B21B 1/46
(2006.01)
B22D 11/128
(2006.01)
C21D 8/02
(2006.01)
|
|
MCD-Zusatzklasse |
MCA |
B21B 1/26
(2006.01)
B21B 1/34
(2006.01)
B21B 45/00
(2006.01)
B21B 45/02
(2006.01)
|
| 57 |
Zusammenfassung |
AB |
[EN] PCT No. PCT/DE95/01347 Sec. 371 Date Apr. 21, 1997 Sec. 102(e) Date Apr. 21, 1997 PCT Filed Sep. 21, 1995 PCT Pub. No. WO96/12573 PCT Pub. Date May 2, 1996A process for producing a steel strip with properties of a cold-rolled product. The process including comprising the sequential steps of: a) producing a thin slab 30 to 100 mm thick from a steel melt by continuous casting in a continuous casting machine, and, after a cast strip emerges from a mold of the continuous casting machine, cast rolling the cast strip with a liquid core to reduce thickness of the cast strip by at least 10%; b) descaling the thin slab produced according to step a); c) hot rolling the descaled thin slab at temperatures in a range of 1150 DEG to 900 DEG C. for reducing thickness by at least 50% to produce an intermediate strip with a maximum thickness of 20 mm; d) after hot rolling, accelerated cooling of the intermediate strip to a temperature in a range of 850 DEG to 600 DEG C.; e) rolling down the cooled intermediate strip by isothermic rolling at 850 DEG to 600 DEG C. on a finishing train with at least three stands into strips with a maximum thickness of 2 mm, whereby the strip thickness is reduced by at least 25% per roll pass; and f) subsequently cooling the isothermic rolled steel strip in accelerated fashion to a temperature no greater than 100 DEG C. |
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