EP 0816522 B1 20010228 - Ferroalloy for the inoculation of spheroidal graphite cast iron
Title (en)
Ferroalloy for the inoculation of spheroidal graphite cast iron
Title (de)
Ferrolegierung für die Impfung von Kugelgraphitgusseisen
Title (fr)
Ferroalliage pour l'inoculation des fontes à graphite sphéroidal
Publication
Application
Priority
- FR 9608151 A 19960625
- FR 9702040 A 19970217
Abstract (en)
[origin: EP0816522A1] An alloy which is added to the melt when making spheroidal graphite cast iron comprises (wt.%) 0.005-3% rare earths, 0.005-3% bismuth, lead and/or antimony, 0.3-3%, preferably 0.5-2%, calcium, 0.3-3%, preferably 0.5-1.5%, magnesium and the balance silicon and iron in a ratio of Si to Fe of >2, preferably >2.5. The alloy may be added to the melt in the form of wire wool.
IPC 1-7
IPC 8 full level
C21C 1/10 (2006.01); C22C 35/00 (2006.01)
CPC (source: EP US)
C21C 1/105 (2013.01 - EP US); C22C 35/005 (2013.01 - EP US)
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 0816522 A1 19980107; EP 0816522 B1 20010228; AT E199410 T1 20010315; DE 69704137 D1 20010405; DE 69704137 T2 20010830; DK 0816522 T3 20010903; ES 2155976 T3 20010601; FR 2750143 A1 19971226; FR 2750143 B1 19980814; PT 816522 E 20010830; US 5733502 A 19980331
DOCDB simple family (application)
EP 97420097 A 19970623; AT 97420097 T 19970623; DE 69704137 T 19970623; DK 97420097 T 19970623; ES 97420097 T 19970623; FR 9702040 A 19970217; PT 97420097 T 19970623; US 88225397 A 19970625