Pumps for pumping molten metal

Details Pumps for pumping molten metal Pumps for pumping molten metal

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 15/04 (2006.01) F04D 7/06 (2006.01) F04D 29/42 (2006.01)

Patent

CA 2298038

A nonmetallic pump for pumping molten metal includes a base with an impeller chamber, at least one molten metal inlet opening to the base, at least one molten metal outlet opening from the base, and an impeller connected to one end of a motor driven shaft and rotatable in the impeller chamber. The base includes a shell portion and a one-piece insert formed of nonmetallic heat-resistant material disposed in the impeller chamber. The insert includes a generally circular bore in which the impeller is disposed and a wall extending so as to form a spiral-shaped volute opening around the bore. An egress channel extends from the volute opening toward the molten metal outlet opening. Also included are methods for making the insert and base.

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