Global Patent Index - EP 0481481 A1

EP 0481481 A1 19920422 - Process for production of austenitic stainless steel thin cast strip and strip obtained thereby.

Title (en)

Process for production of austenitic stainless steel thin cast strip and strip obtained thereby.

Title (de)

Verfahren zur Herstellung dünner gegossener rostfreier austenitischer Stahlbänder und derart hergestellte Bänder.

Title (fr)

Procédé de production d'une bande mince coulée en acier inoxydable austénitique et bande ainsi obtenue.

Publication

EP 0481481 A1 19920422 (EN)

Application

EP 91117741 A 19911017

Priority

JP 27909790 A 19901019

Abstract (en)

Disclosed is a process for the production of an austenitic stainless steel thin cast strip having an excellent surface quality, which comprises casting an austenitic stainless steel, in which delta -Fecal. (%), defined by 3(Cr + 1.5Si + Mo) - 2.8(Ni + 0.5Mn + 0.5Cu) - 84(C + N) - 19.8, is controlled to 5 to 9%, by a continuous casting machine, in which a thin cast strip is moved synchronously with the wall surface of a cooling drum, on which many dimples having a diameter of 0.1 to 1.2 mm and a depth of 50 to 100 mu m and having a circular or ellipsoidal opening are distributed so that the distance between every two adjacent dimple edges is smaller than 0.35 mm, into a thin cast strip having a thickness smaller than 10 mm. <IMAGE>

IPC 1-7

B22D 11/06; C21D 8/02

IPC 8 full level

B22D 11/00 (2006.01); B22D 11/06 (2006.01); C21D 8/02 (2006.01)

CPC (source: EP KR)

B22D 11/06 (2013.01 - KR); B22D 11/0651 (2013.01 - EP); C21D 8/0205 (2013.01 - EP)

Citation (search report)

  • [Y] EP 0378705 B1 19960131 - NIPPON STEEL CORP [JP]
  • [A] EP 0309247 A2 19890329 - NIPPON STEEL CORP [JP], et al
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 13, no. 289 (M-845)(3637) 5 July 1989 & JP-A-1 083 342 ( NIPPON STEEL CORP. ) 29 March 1989
  • [A] PATENT ABSTRACTS OF JAPAN vol. 6, no. 261 (C-141)(1139) 21 December 1982 & JP-A-57 155 322 ( SHIN NIPPON SEITETSU KK ) 25 September 1982
  • [A] PATENT ABSTRACTS OF JAPAN vol. 11, no. 353 (C-457)(2800) 18 November 1987 & JP-A-62 124 220 ( NIPPON STEEL CORP. ) 5 June 1987

Designated contracting state (EPC)

DE ES FR GB IT SE

DOCDB simple family (publication)

EP 0481481 A1 19920422; EP 0481481 B1 19940608; DE 69102388 D1 19940714; DE 69102388 T2 19950119; ES 2056553 T3 19941001; JP H04158957 A 19920602; JP H082484 B2 19960117; KR 920007716 A 19920527; KR 950014485 B1 19951202

DOCDB simple family (application)

EP 91117741 A 19911017; DE 69102388 T 19911017; ES 91117741 T 19911017; JP 27909790 A 19901019; KR 910018401 A 19911018