Metal founding – Means to shape metallic material – Continuous or semicontinuous casting
Patent
1989-04-17
1990-10-16
Seidel, Richard K.
Metal founding
Means to shape metallic material
Continuous or semicontinuous casting
164472, 164486, B22D 11124, B22D 1107
Patent
active
049628070
ABSTRACT:
A continuous or semi-continuous casting apparatus of the direct chill type for casting metallic materials, particularily recctangular ingots of aluminium, includes a mold which has an open inlet for the filling of molten metal into a mold cavity having an open outlet with a water supply for cooling of the metal. The mold cavity is, at a position spaced from its inlet, provided with a permeable ring for the supply of oil and/or gas, such that a layer of oil and/or gas is formed between the metal and mold wall, whereby the metal is prevented from coming into contact with the mold wall before it solidifies. The surfaces of the ring, with the exception of the side facing the mold cavity, are provided with a sealing agent which prevents the oil and/or gas from escaping through such surfaces. Further, the ring, in its circumferential direction, is provided with longitudinal bores or holes which are supplied the oil and/or gas to via further bores extending through the mold wall and into the graphite ring from the outside of the mold.
REFERENCES:
patent: 4597432 (1986-07-01), Collins et al.
patent: 4598763 (1986-07-01), Wagstaff et al.
patent: 4693298 (1987-09-01), Wagstaff
Naess Harald
Sivertsen Jan
Norsk Hydro a.s.
Seidel Richard K.
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