EP 0271688 A1 19880622 - Process for obtaining bainitic nodular cast iron castings.
Title (en)
Process for obtaining bainitic nodular cast iron castings.
Title (de)
Verfahren zur Herstellung von Gussstücken aus bainitischem Gusseisen mit Kugelgraphit.
Title (fr)
Procédé pour la fabrication de pièces moulées en fonte bainitique modulaire.
Publication
Application
Priority
IT 4291586 A 19861120
Abstract (en)
Process for obtaining bainitic nodular cast iron castings based on the severe narrowness of the alloy analytic values and on a particular thermic cycle based in turn on austenitizing at high temperature, after having effected a superificial nitriding treatment, and on isothermic transformation at low temperature with intermediate temper in water at a temperature lower than the transformation temperature.
IPC 1-7
IPC 8 full level
C21D 5/00 (2006.01); C21D 7/06 (2006.01); C23C 8/80 (2006.01)
CPC (source: EP)
C21D 5/00 (2013.01); C21D 7/06 (2013.01); C23C 8/80 (2013.01)
Citation (search report)
- [Y] US 4222793 A 19800916 - GRINDAHL ROBERT B
- [A] DE 2141175 A1 19730222 - KOLOMENSKIJ TEPLOWOSOSTROITEL
- [A] WO 8301959 A1 19830609 - FISCHER AG GEORG [CH]
- [A] DE 3407010 A1 19850905 - WIZEMANN GMBH U CO J [DE]
- [Y] PATENT ABSTRACTS OF JAPAN, vol. 6, no. 186 (C-126)[1064], 22nd September 1982; & JP-A-57 98 675 (TOYO KOGYO K.K.) 18-06-1982
- [A] JOURNAL OF HEAT TREATING, vol. 3, no. 4, December 1984, pages 326-334, American Society for Metals, Metals Park, Ohio, US; V.K. SHARMA: "Roller contact fatigue study of austempered ductile iron"
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR LI LU NL SE
DOCDB simple family (publication)
EP 0271688 A1 19880622; IT 1216347 B 19900222; IT 8642915 A0 19861120
DOCDB simple family (application)
EP 87116105 A 19871102; IT 4291586 A 19861120