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- Title
ABOUT THE DUCTILE IRONS ELABORATED IN ELECTRIC ARC FURNACES - EXPERIMENTAL RESEARCH FOR INCREASING THE EFFICIENCY OF INOCULATION TREATMENTS.
- Authors
KISS, Imre
- Abstract
The following experiments were made in an electric arc furnace with basic wall lining, with a 5 tones capacity, which was set on a casting platform. The resulting irons are destined to the nodularizing modification of the graphite. Proper inoculation of graphitic cast irons cannot be over emphasized, because this step defines the final microstructure and resultant properties and minimizes problems. Inoculation, if done correctly, controls the nodule count, reduces or eliminates carbides, produces the correct mechanical properties, improves machinability, and will decrease shrinkage. The chosen modifier is a classical one, based on Fe, Si, and Mg. It will be presented the chemical compositions of irons that are subject to modification, the parameters of the modification process, and also the results (the final composition of ductile irons, the characteristics of the graphite and of the matrix, gases contents). The conclusions can be used for the making up of a modifying technology, on an industrial scale.
- Subjects
NODULAR iron; ARC furnaces; CASTING (Manufacturing process); MICROSTRUCTURE; INOCULATION (Founding)
- Publication
Annals of the Faculty of Engineering Hunedoara - International Journal of Engineering, 2012, Vol 10, Issue 3, p343
- ISSN
1584-2665
- Publication type
Article