Side feed tundish apparatus and method for the alloying and rapi

Details Side feed tundish apparatus and method for the alloying and rapi Side feed tundish apparatus and method for the alloying and rapi

1989-07-03

1991-08-20

Batten, Jr., J. Reed

Metal founding

Process

Shaping liquid metal against a forming surface

164423, 164429, 164437, 164479, 164488, 164489, 222590, 222591, B22D 1106, B22D 4100

Patent

active

050405942

ABSTRACT:
The flow control of molten alloy material in a tundish is improved by the design of a perpendicular turn in the path of flow of the molten alloy material as the flow leaves an intermediate section of the tundish or casting receptacle and overflows transversely an exit lip to thereby contact a heat-extracting substrate. The perpendicular turn in the flow achieves improved control of the molten alloy material's velocity profile, cooling rate, and depth and flow uniformity of the molten alloy material in the casting receptacle. The essentially perpendicular turn in the path of the molten alloy material from the intermediate section causes the molten alloy material to approach the exit lip in a transverse direction unlike conventional laminar or direct delivery molten flow. The transverse flow relative to the direction of the exit over-flow toward the casting or cooling surface facilitates improved mixing of the molten alloy material, improved control of the depth gradient, and improved control of the velocity into the exit lip.

REFERENCES:
patent: 993904 (1911-05-01), Strange
patent: 4326579 (1982-04-01), Pond, Sr. et al.
patent: 4485839 (1984-12-01), Ward
patent: 4540546 (1985-09-01), Giessen
patent: 4582116 (1986-04-01), Ray et al.
patent: 4890662 (1990-01-01), Sanchez-Caldera et al.
patent: 4928748 (1990-05-01), Guthrie et al.

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