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Yield metal pouring system

  • US 6,280,499 B1
  • Filed: 06/19/1996
  • Issued: 08/28/2001
  • Est. Priority Date: 12/28/1994
  • Status: Expired due to Term
First Claim
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1. A method of maximizing clean metal pour from a side-tapped tilting furnace during the last about 20% of metal pour, substantially avoiding operator judgment, comprising:

  • a) providing means for measuring the angle of tilt of said furnace while discharging liquid metal from said side tap into a ladle;

    b) measuring the amount of metal contained in said furnace before said discharge into said ladle;

    c) measuring the volume of metal discharged into said ladle;

    d) determining the amount of metal residuum remaining in said furnace from said volume of metal discharged into said ladle;

    e) adjusting said angle of tilt of said furnace to an optimal angle which provides for minimal slag entrainment in liquid metal pouring through said side tap, said optimal angle calculated as a function of the furnace geometry and historical data of furnace lining wear, for said amount of metal residuum.

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