Apparatus for manufacturing oxygen-free copper
First Claim
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1. An apparatus for manufacturing an oxygen-free copper comprising:
- a deoxidizing device for blowing a reducing gas containing hydrogen gas into a molten copper to react with oxygen dissolved in the molten copper to remove the same;
a melting furnace connected to said deoxidizing device for melting a copper material to produce said molten copper;
a dehydrogenating device connected to said deoxidizing device for exposing the molten copper treated in said deoxidizing device to an ambient gas comprised of a gas with a low hydrogen partial pressure to remove hydrogen dissolved in the molten copper; and
a continuous casting machine for casting the molten copper thus dehydrogenated.
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Abstract
Method and apparatus for manufacturing an oxygen-free copper having an oxygen content of no greater than 3 ppm by weight are disclosed. In the method, a deoxidizing step is carried out by bringing a reducing gas containing hydrogen gas into contact with a molten copper to react on the oxygen to remove the same. Then a dehydrogenation step may be carried out by bringing a gas of lean hydrogen concentration into contact with the molten copper. Accordingly, the apparatus has a deoxidizing device for blowing the reducing gas into the molten copper and preferably a dehydrogenation device.
15 Citations
14 Claims
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1. An apparatus for manufacturing an oxygen-free copper comprising:
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a deoxidizing device for blowing a reducing gas containing hydrogen gas into a molten copper to react with oxygen dissolved in the molten copper to remove the same; a melting furnace connected to said deoxidizing device for melting a copper material to produce said molten copper; a dehydrogenating device connected to said deoxidizing device for exposing the molten copper treated in said deoxidizing device to an ambient gas comprised of a gas with a low hydrogen partial pressure to remove hydrogen dissolved in the molten copper; and a continuous casting machine for casting the molten copper thus dehydrogenated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for manufacturing an oxygen-free copper comprising:
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a deoxidizing device for blowing a reducing gas containing hydrogen gas into a molten copper to react with oxygen dissolved in the molten copper to remove the same; a melting furnace connected to said deoxidizing device for melting a copper material to produce said molten copper; and a dehydrogenating device connected to said deoxidizing device for exposing the molten copper treated in said deoxidizing device to an ambient gas comprised of a gas with a low hydrogen partial pressure to remove hydrogen dissolved in the molten copper. - View Dependent Claims (11, 12, 13, 14)
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Specification