Manufacture of cast-iron ingot moulds

Details Manufacture of cast-iron ingot moulds Manufacture of cast-iron ingot moulds

1979-05-22

1981-11-17

Baldwin, Robert D.

Metal founding

Process

Shaping liquid metal against a forming surface

164348, B22D 2704

Patent

active

043006167

ABSTRACT:
In casting of a cast-iron ingot mould in a sand mould, it is proposed to inject air into the moulding sand adjacent the lower end of the ingot mould, after the ingot mould surface has solidified. The injected air causes conversion of the perlite at the interior surface of the ingot mould into ferrite. This improves the resistance of this surface region to corrosion during casting of ingots in the ingot mould, thus prolonging the life of the ingot mould.

REFERENCES:
patent: 1025436 (1912-05-01), West
patent: 1031305 (1912-07-01), West
patent: 1056961 (1913-03-01), West

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