Global Patent Index - EP 0368048 A3

EP 0368048 A3 19910123 - METHOD AND DEVICE FOR MANUFACTURING HOT-ROLLED STEEL STRIP

Title (en)

METHOD AND DEVICE FOR MANUFACTURING HOT-ROLLED STEEL STRIP

Publication

EP 0368048 A3 19910123 (DE)

Application

EP 89119376 A 19891019

Priority

DE 3837642 A 19881105

Abstract (en)

[origin: EP0368048A2] In the manufacture of hot-rolled steel strip, the strip-shaped cast billets coming from the casting plant are wound up in an intermediate storage means to form a coil and are unwound again after heating and fed to a rolling mill for rolling out to a certain final thickness of cross-section. Here, however, it is of disadvantage that the cast billets discharged from the casting plant have to be stored and preheated in an intermediate storage means before they are fed to the finish rolling mill. This involves the need for more equipment, greater expenditure of energy and increased costs. The arrangement of an intermediate storage means also requires more space. According to the invention, however, these disadvantages are removed due to the fact that the continuously cast feed stock, after heating in the compensating furnace (3, 4) is fed to a multiple-stand, reversible finish rolling-mill train (10) having a coilbox (14) attached thereto. <IMAGE>

IPC 1-7

B21B 1/46; B21B 1/34

IPC 8 full level

B21B 1/32 (2006.01); B21B 1/26 (2006.01); B21B 1/34 (2006.01); B21B 1/46 (2006.01); B21B 15/00 (2006.01); B21B 35/12 (2006.01); B21B 45/02 (2006.01); B21B 45/06 (2006.01)

CPC (source: EP US)

B21B 1/26 (2013.01 - EP US); B21B 1/34 (2013.01 - EP US); B21B 1/466 (2013.01 - EP US); B21B 35/12 (2013.01 - EP US); B21B 45/0218 (2013.01 - EP US); B21B 45/06 (2013.01 - EP US); Y10T 29/49989 (2015.01 - EP US); Y10T 29/49991 (2015.01 - EP US); Y10T 29/5184 (2015.01 - EP US); Y10T 29/5197 (2015.01 - EP US); Y10T 29/5198 (2015.01 - EP US)

Citation (search report)

  • [XP] EP 0320846 A1 19890621 - HITACHI LTD [JP]
  • [X] JP S61206507 A 19860912 - ISHIKAWAJIMA HARIMA HEAVY IND
  • [A] JP S6297702 A 19870507 - SUMITOMO METAL IND
  • [A] GB 2129723 A 19840523 - MANNESMANN AG
  • [A] HITACHI REVIEW, Band 37, Nr. 4, August 1988, Seiten 175-180, Toyko, JP; T. KIMURA et al.: "Recent developments for advanced rolling mills"
  • [A] IRON AND STEEL ENGINEER, Band 64, Nr. 8, August 1987, Seiten 50-55, Pittsburg, PA, US; H. WIESINGER et al.: "Hot strip rolling for compact mills: The HSRC mill"

Designated contracting state (EPC)

AT BE CH DE ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0368048 A2 19900516; EP 0368048 A3 19910123; EP 0368048 B1 19940302; AT E102087 T1 19940315; DE 3837642 A1 19900517; DE 58907090 D1 19940407; ES 2050204 T3 19940516; JP H02175009 A 19900706; US 4998338 A 19910312

DOCDB simple family (application)

EP 89119376 A 19891019; AT 89119376 T 19891019; DE 3837642 A 19881105; DE 58907090 T 19891019; ES 89119376 T 19891019; JP 28504989 A 19891102; US 43205089 A 19891106