B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/56
B22D 11/124 (2006.01) B22D 11/04 (2006.01) B22D 11/07 (2006.01)
Patent
CA 1337733
A continuous or semi-continuous casting apparatus of the direct chill type for casting metallic materials, particu- larily rectangular ingots of aluminium, comprises a mold (1) which has an open inlet (2) for the filling of melted metal and a mold cavity (4) with an open outlet with water supply means for cooling of the metal. The mold cavity is at a distance from its inlet provided with a permeable ring (20) 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 surface of the ring, with the exception of the side facing the mold cavity, is provided with a sealing agent which prevents the oil and/or gas from escaping through the surface. Further, the ring, in its peripherical direction, is provided with longitudinal bores or holes for supplying oil and/or gas to said bores via bores through the mold wall and further into the graphite ring from the outside of the mold.
596726
Næss Harald Jr.
Sivertsen Jan
Fetherstonhaugh & Co.
Norsk Hydro A.s
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