Treatment agent for cast iron melts and a process for the produc

Details Treatment agent for cast iron melts and a process for the produc Treatment agent for cast iron melts and a process for the produc

1984-07-02

1985-09-10

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75 53, 75130R, C22C 102, C21C 110

Patent

active

045404364

ABSTRACT:
The present invention provides a treatment agent for cast iron melts based upon ferrosilicon magnesium with a silicon content of from 40 to 80% by weight and a magnesium content of from 0.5 to 15% by weight, said agent being in the form of granules with a specific surface area of from 0.2 to 0.8 m.sup.2 /g. according to BET.
The present invention also provides a process for the production of this treatment agent, wherein a jet of molten ferrosilicon magnesium alloy is directed on to a bounce plate made of fire-resistant material and the melt droplets which bounce back from bounce plate are allowed to solidify in a liquid-filled collection receiver.

REFERENCES:
patent: 4313758 (1982-02-01), Henning
patent: 4377411 (1983-03-01), Moore
patent: 4385030 (1983-05-01), Dremann
AFS-Transactions, 83-108, pp. 263-268, by Dremann.

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