×

Pump for pumping molten metal having cleaning and repair features

  • US 5,842,832 A
  • Filed: 12/20/1996
  • Issued: 12/01/1998
  • Est. Priority Date: 12/20/1996
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of cleaning a pump for pumping molten metal, comprising the steps of:

  • rotating a shaft of the pump in molten metal in a shaft sleeve surrounding the shaft, an impeller of the pump being disposed on an end of the shaft in an impeller chamber of a base;

    adjusting the rotational velocity of the shaft to a cleaning velocity approximating a rotational velocity of the shaft at which cavitation occurs in the pump; and

    removing metal oxides inside the shaft sleeve from the pump.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×