Treatment agent for cast iron melts and a process for the production thereof
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United States of America Patent
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Sep 10, 1985
Grant Date -
N/A
app pub date -
Jul 2, 1984
filing date -
Jul 6, 1983
priority date (Note) -
Expired
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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.
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