Global Patent Index - EP 0860215 A1

EP 0860215 A1 19980826 - Continuous metal manufacturing method and apparatus therefor

Title (en)

Continuous metal manufacturing method and apparatus therefor

Title (de)

Kontinuierliches Stahlherstellungsverfahren und Vorrichtung dafür

Title (fr)

Procédé et dispositif de fabrication d'acier en continu

Publication

EP 0860215 A1 19980826 (EN)

Application

EP 98301246 A 19980219

Priority

  • GB 9703651 A 19970221
  • GB 9715360 A 19970721

Abstract (en)

The invention relates to a method for the manufacture of steel, in the form of rod, bar or strip, from the molten metal to the final rolled product comprising a casting (2) process and a rolling process coupled together with a balanced mass flow rate, wherein the rolling process includes a first rolling stage (10A,10B,10C,10D) followed by a second rolling stage (13), and wherein a temperature controlling stage is arranged between the first and second rolling stages, which comprises a first state in which it operates to prepare the steel for rolling in the austenitic phase, and an alternative second state in which the temperature controlling stage operates to prepare the steel for rolling in the ferritic phase, said temperature controlling stage being selectively operable between the first state and the second state, such that the steel passes through the same subsequent second rolling stage, correspondingly in the austenitic phase or alternatively the ferritic phase. The temperature controlling means may comprises a heat retaining means which, in the first state encloses the steel to retain heat therein, and is openable to form the second state, in which the steel is exposed to the surrounding cooling air. Alternatively, it may comprises a heat providing or retaining means (11b) and a separate heat removing or cooling means (11a) arranged either in parallel with the selected temperature control means, being arranged in-line or in series, on-line. <IMAGE>

IPC 1-7

B21B 1/46; B21B 1/26; C21D 8/02

IPC 8 full level

B22D 11/12 (2006.01); B21B 1/00 (2006.01); B21B 1/26 (2006.01); B21B 1/46 (2006.01); B22D 11/16 (2006.01); C21D 8/12 (2006.01); B21B 13/02 (2006.01); B21B 37/24 (2006.01)

CPC (source: EP)

B21B 1/26 (2013.01); B21B 1/463 (2013.01); C21D 8/1227 (2013.01); B21B 13/023 (2013.01); B21B 37/24 (2013.01); B21B 2201/02 (2013.01); B21B 2201/04 (2013.01)

Citation (search report)

  • [PX] WO 9746332 A1 19971211 - HOOGOVENS STAAL BV [NL], et al
  • [PX] EP 0771596 A1 19970507 - SCHLOEMANN SIEMAG AG [DE]
  • [XAY] WO 9701401 A1 19970116 - HOOGOVENS STAAL BV [NL], et al
  • [Y] WO 9601710 A1 19960125 - IPSCO INC [CA]
  • [A] DE 19520832 A1 19960425 - MANNESMANN AG [DE]
  • [A] EP 0306076 A1 19890308 - HOOGOVENS GROEP BV [NL]
  • [A] EP 0140776 A2 19850508 - CLECIM SA [FR]
  • [Y] V. GINZBURG ET AL: "HEAT CONSERVATION BETWEEN ROUGHING AND FINISHING TRAINS OF HOT STRIP MILLS", IRON AND STEEL ENGINEER, vol. 63, no. 4, April 1986 (1986-04-01), PITTSBURG, PA, USA, pages 29 - 39, XP002063816
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 014, no. 523 (M - 1049) 16 November 1990 (1990-11-16)
  • [A] MCMANUS G J: "FERRITIC ROLLING OF HOT ROLLED SHEET: SUCCESSFUL USE OF NEW TECHNOLOGY COULD OPEN DOORS", IRON AND STEEL ENGINEER, vol. 72, no. 8, August 1995 (1995-08-01), pages 53/54, XP000527905

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0860215 A1 19980826; CA 2230013 A1 19980821; CN 1195585 A 19981014; GB 2322320 A 19980826; GB 9802317 D0 19980401; JP H10277715 A 19981020

DOCDB simple family (application)

EP 98301246 A 19980219; CA 2230013 A 19980220; CN 98100564 A 19980223; GB 9802317 A 19980204; JP 4060698 A 19980223