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Apparatus for melting metal by electron beams and process for producing high-melting metal ingot using this apparatus

  • US 7,757,748 B2
  • Filed: 01/23/2006
  • Issued: 07/20/2010
  • Est. Priority Date: 01/25/2005
  • Status: Active Grant
First Claim
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1. An electron-beam furnace for melting refractory metal, comprising:

  • a feeder unit for raw materials;

    a melting unit for raw materials which is connected to the feeder unit for raw materials and which is constructed of a furnace wall and a ceiling wall; and

    an outlet nozzle unit of exhaust gas that is connected to the melting unit for raw materials,the melting unit for raw materials further comprising at least a hearth, a water-cooled mold, and an electron beam gun,wherein titanium or stainless steel is lined on at least one of the furnace wall and the ceiling wall, and wherein plural fin-shaped members made of titanium or stainless steel are disposed at the ceiling wall.

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