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(11) | EP 0 717 119 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Method of manufacturing copper alloy containing active metal |
(57) When a copper alloy containing a metal more reactive with oxygen than copper is melted
and cast, a feedstock is vacuum melted with an induction melting furnace (4) within
an airtight container (5) which has been vacuum evacuated, and thereafter positive
pressure is applied (via pipe 26) to the airtight container (5), and the molten metal
is discharged from the furnace through a pouring siphon (32) for continuously casting
in a mold (51). Said positive pressure is exerted using an inert gas. |