Method and apparatus for casting metals

Details Method and apparatus for casting metals Method and apparatus for casting metals

1980-05-05

1982-06-22

Hampilos, Gus T.

Metal founding

Process

Shaping liquid metal against a forming surface

164122, 164131, 164133, 164138, 164309, 164348, B22D 1804, B22D 2704

Patent

active

RE0309796

ABSTRACT:
Method and apparatus for casting a metal article in a mold at least as long as the article, utilizing a cooled mold of elongated form having top and bottom portions. The method includes the steps of introducing molten metal from a source through the bottom portion of the mold, flowing molten metal into the mold so as to form a solidifying casting shell which a during casting occupies at least 40% of the cross-sectional mold area and a has a molten core, and flowing molten metal from the source through the core towards the mold top at a filling rate, dependent on the mold cross sectional area, such that the product produced will have a relatively fine grained structure throughout the cross-section thereof.

REFERENCES:
patent: 2891294 (1959-06-01), Muller et al.
patent: 2978764 (1961-04-01), Hrabovsky
patent: 3191292 (1965-06-01), Strom
patent: 3417810 (1968-12-01), Tiskus et al.
patent: 3517725 (1970-06-01), Watts
patent: 3680624 (1972-08-01), Watts
patent: 3814166 (1974-06-01), Watts
patent: 3868988 (1975-05-01), Hansson et al.

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