Manufacturing process of vermicular graphic cast-irons through d

Details Manufacturing process of vermicular graphic cast-irons through d Manufacturing process of vermicular graphic cast-irons through d

1979-09-12

1981-01-20

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75 53, 75130A, 75130B, C22C 3308

Patent

active

042460263

ABSTRACT:
A two-stage method of making vermicular graphite cast iron in which a first alloy is introduced into the ladle into which the iron is cast and then the vermicular graphite level is measured. A second alloy of a compacting or anticompacting nature is then added to ensure a final vermicular graphite level of at least 85% of the total graphite.

REFERENCES:
patent: 3492118 (1970-01-01), Mickelson
patent: 3598576 (1971-08-01), Moore
patent: 3955973 (1976-05-01), Robinson

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