EP 0829551 A3 19990616 - Cast-iron alloy for heat resistant motor parts
Title (en)
Cast-iron alloy for heat resistant motor parts
Title (de)
Gusseisen-Legierung für thermisch hochbelastete Motorenteile
Title (fr)
Alliage de fonte à graphite à haute résistance thermique
Publication
Application
Priority
DE 19636808 A 19960911
Abstract (en)
[origin: DE19636808C1] A novel spheroidal graphite alloy cast iron for high temperature engine parts has the composition 2.7-3.4 (preferably 2.9-3.2)% C, 4.4-5.4 (preferably 4.6-4.9)% Si, 0.4-1.2 (preferably 1.0-1.2)% Ni, \}0.5% Cr, 0.7-1.4 (preferably 0.8-0.9)% Mo, \}0.5% Mn, 0.03-0.08% Mg, balance Fe and usual trace elements. Preferably, the sum of Si, Ni and Mo is 5.8-7.0%. The cast iron is produced by the usual process for grey cast iron with spheroidal graphite, but inoculation is preferably carried out at several points, i.e. inoculation with 0.3-0.4% FeSi 75 in the casting equipment and inoculation with 0.2% FeSi 75 in the mould, to give reproducible quality with finely distributed graphite spheroids of 6-8 size.
IPC 1-7
IPC 8 full level
C22C 37/10 (2006.01); F01N 13/10 (2010.01); F01N 13/16 (2010.01)
CPC (source: EP)
C22C 37/10 (2013.01); F01N 13/102 (2013.01); F01N 13/16 (2013.01)
Citation (search report)
- [Y] US 4702886 A 19871027 - KENT RANDY K [US]
- [A] DE 2654474 A1 19780608 - TEVES THOMPSON GMBH
- [A] DE 2428821 A1 19751218 - GOETZEWERKE
- [Y] R. ELLIOTT: "Cast Iron Technology", 1988, BUTTERWORTHS, LONDON, GB, XP002100214
- [A] PATENT ABSTRACTS OF JAPAN vol. 095, no. 008 29 September 1995 (1995-09-29)
- [A] PATENT ABSTRACTS OF JAPAN vol. 010, no. 023 (C - 325) 29 January 1986 (1986-01-29)
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)
DE 19636808 C1 19970925; EP 0829551 A2 19980318; EP 0829551 A3 19990616
DOCDB simple family (application)
DE 19636808 A 19960911; EP 97114724 A 19970826