Ferroalloy for inoculation of spherulitic graphite irons

Details Ferroalloy for inoculation of spherulitic graphite irons Ferroalloy for inoculation of spherulitic graphite irons

1997-06-25

1998-03-31

Yee, Deborah

Alloys or metallic compositions

Silicon base alloy containing metal

C22C 2800

Patent

active

057335028

ABSTRACT:
A ferrosilicon-based ferroalloy for inoculation of spherulitic graphite irons containing (by weight) from 0.005% to 3% rare earths, 0.005% to 3% bismuth, lead and/or antimony, and 0.3% to 3% calcium, and is characterized by the fact that Si/Fe>2 and contains from 0.3 to 3% magnesium. The ferroalloy exhibits improved granulometric stability during storage.

REFERENCES:
Patent Abstracts of Japan, vol. 012, No. 005, (C-467), 8 Jan. 1988.
Giesserei-Praxis, vol. 17, Sep. 1992, Berlin, DE, pp. 247-254, XP002026066, C. Pelhan et al., "Calcium in der Vorlegierung FeSiMg(Ca)".
Durrer/Volkert: "Metallurgie der Ferrolegierungen" 1972, Springer-Verlag, Berlin Heidelberg New York, 2. Auflage XP002026091, pp. 530-533.

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