(19)

(11)

EP 0 871 554 A1

(12)

(43) Date of publication: 21.10.1998 Bulletin 1998/43 (21) Application number: 96904426.0 (22) Date of filing: 21.02.1996

(51) International Patent Classification (IPC):  B22D 11/ 10( . ) B22D 11/ 112( . ) B22D 11/ 115( . ) B22D 27/ 02( . ) B22D 11/ 04( . ) B22D 11/ 114( . ) B22D 11/ 116( . ) (86) International application number: PCT/SE1996/000241 (87) International publication number: WO 1996/026029 (29.08.1996 Gazette 1996/39)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 22.02.1995 SE 19950000684 (71) Applicant: ASEA BROWN BOVERI AB 721 83 Västeras (SE)	(72) Inventors: LEHMAN, Anders 167 73 Bromma (SE) ERIKSSON, Jan, Erik S-723 55 Västeras (SE)