Metal founding – Means to shape metallic material – Continuous or semicontinuous casting
Patent
1977-10-17
1979-05-15
Simpson, Othell M.
Metal founding
Means to shape metallic material
Continuous or semicontinuous casting
164 85, B22D 1110
Patent
active
041542916
ABSTRACT:
A mandrel for use in the continuous casting of tubular metallic members and receivable in a continuous casting die in a spaced relationship relative to the die side walls. The mandrel is preferably constructed from graphite to include a distinct freeze area or zone intermediate the mandrel ends. This freeze area has a constant cross-sectional dimension over the length thereof to substantially accommodate freezing of metal from a liquid to a solid state in a desired configuration during a casting operation. An elongated bore extends longitudinally inward into the mandrel from the outermost end, through the freeze area and at least partially through the area of the mandrel between the freeze area and the innermost end. This bore advantageously facilitates a reduction in the amount of heat conducted through the mandrel from the innermost end toward the outermost end during a continuous casting operation to thereby aid in insuring transition of the metal from a liquid to a solid state substantially along the freeze area.
REFERENCES:
patent: 2466612 (1949-04-01), Phillips et al.
patent: 3342252 (1967-09-01), Wood et al.
patent: 3578065 (1971-05-01), Langer
patent: 3707439 (1972-12-01), Poeste et al.
patent: 3710840 (1973-01-01), Fabens, Jr.
patent: 4000773 (1977-01-01), Sevastakis
Lin K. Y.
Simpson Othell M.
Western Reserve Manufacturing Co., Inc.
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