Casting steel ingots

Details Casting steel ingots Casting steel ingots

1975-06-02

1976-12-21

Shore, Ronald J.

Metal founding

Process

Shaping liquid metal against a forming surface

164134, B22D 700, B22D 100

Patent

active

039982610

ABSTRACT:
In the bottom pouring of steel ingots, the molten steel is teemed into a trumpet or upstanding runner and passes from the trumpet through a horizontal runner and up into an ingot mould. Inert gas is injected into the molten steel as it passes downwardly through the trumpet so that bubbles are formed in the steel, which bubbles assist in the removal of non-metallic inclusions. This process is used in the manufacture of steel ingots of very low non-metallic inclusion content and low total oxygen content.

REFERENCES:
patent: 1583248 (1926-05-01), Durville
patent: 1814584 (1931-07-01), Bost et al.
patent: 3392009 (1968-07-01), Holmes et al.
patent: 3400752 (1968-09-01), Unsworth
patent: 3621903 (1971-11-01), Doi et al.
patent: 3672432 (1972-06-01), Widdowson et al.
patent: 3810506 (1974-05-01), Kobayashi
patent: 3880221 (1975-04-01), Bolevski et al.

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