Ferroalloy for the treatment of cast metals and process

Details Ferroalloy for the treatment of cast metals and process Ferroalloy for the treatment of cast metals and process

1982-07-30

1984-02-21

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75 53, 75123R, C22C 3308

Patent

active

044327935

ABSTRACT:
A ferroalloy for the treatment by inoculation of cast iron with spheroidal graphite comprises from 0.005 to 3% by weight of at least one metal of the rare earth group and from 0.05 to 3% by weight of at least one element taken from the group comprising bismuth, lead and antimony, the remainder being essentially the silicon and iron normally present in the ferroalloys used for inoculating the cast metals.
This ferroalloy may be used for the treatment by inoculation of cast metals with spheroidal graphite having to be used rough cast.

REFERENCES:
patent: 2792300 (1957-05-01), Livingston
patent: 2841488 (1958-07-01), Morrogh

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