Abstract: A pump for processing molten metal having an enlarged tubular body which houses a centrifugal pump at its bottom end. The bottom end has a parabolic shape which receives the ejected molten metal from the impeller and forms a vortex within the tubular body. The pump is controlled to cause the vortex to climb up the inner wall of the body up to and out of an outlet formed in the upper end of the body. A radial vane impeller is formed in the back plate of the impeller. When the impeller is rotated, solid particles introduced into the body are accelerated radially by the back plate impeller into the vortex.

Abstract: A furnace flow control valve for use within a bath of molten metal. The flow control valve includes a vertically-disposed elongated tubular stator, which is configured to receive flow from a molten metal pump. The valve has a rotor which is sealing rotatable within the stator between: a full re-circulation position, where flow from the pump passes un-hindered through the valve; a full transfer position, where flow from the pump is redirected into the vertically disposed stator and out of the valve; and a partial re-circulation/partial transfer position where flow from the pump both passes through the valve and is transferred up and out of valve through the stator.

Abstract: A castable and machinable alloy suitable for submersion in a molten magnesium or magnesium aluminum melt has the following composition: ELEMENT CONTENT (weight %) Boron 0.01-2.0? Carbon 0.01-2.0? Sulphur Trace Phosphorus Trace Chromium ?5.0-15.0 Silicon 0.0-2.0 Molybdenum ?2.00-12.00 Tungsten ?0.5-10.00 Vanadium 0.5-5.0 Niobium 0.5-5.0 Cobalt ?0.5-10.0 Iron Balance The alloy is resistant to dissolution by the melt at temperatures of up to around 1800° F.

Abstract: A furnace filtration system for improving the speed and efficiency of a molten metal centrifugal impeller pump contained within a non-ferrous molten metal furnace. The system includes a filtration well located upstream of the pump well. The filtration well includes a filter having a plurality of through filter passages that are sized to prevent any solid contaminants that are larger than the pump's impeller openings from passing therethrough. By preventing any contaminants that cannot pass through the pump, the pump can be run at a higher speed. A furnaces efficiency increases with the centrifugal pump's efficiency increases with its centrifugal pump's speed along with the flow and pressure.

Abstract: A sliding gate valve for use within a bath of molten aluminum. The sliding gate valve includes a pair of opposed ceramic cleaner plates that sandwich a reciprocable gate body. The cleaner plates include a plurality of longitudinal slots that face the gate body. Dross accumulating on the gate body is scraped from the gate body and into the slots when the gate body is reciprocated.

Abstract: A molten metal pump includes an impeller, a pump base housing at least partially enclosing the impeller, a shaft connected to the impeller, a motor connected to the shaft, a motor mount plate for supporting the motor; and a post for connecting the motor mount plate to the pump base housing. The molten metal pump can include a connector that connects the post to the motor mount plate. The molten metal pump can include a socket for connecting the shaft to the motor. The shaft can comprise an assembly including an elongated metal rod having a first end and a second end and a metal non-circular drive member attached at the second end of the elongated metal rod.

Abstract: A centrifugal pump has a pump base with inlet inducer openings that receive molten metal into an impeller chamber. An impeller structure in the impeller chamber passes the metal in a radial direction through an outlet inducer opening into a volute passage for discharge into the pool of metal in which the pump is located.

Abstract: A bearing for supporting a shaft submerged in molten zinc, has a bearing surface comprising a steel cylindrical liner having slots retaining ceramic shaft-engaging bearing elements.

Abstract: A centrifugal pump has a pump base with inlet inducer openings that receive molten metal into an impeller chamber. An impeller structure in the impeller chamber passes the metal in a radial direction through an outlet inducer opening into a volute passage for discharge into the pool of metal in which the pump is located.

Abstract: A castable and machinable alloy suitable for submersion in a molten magnesium or magnesium aluminum melt has the following composition: ELEMENT CONTENT (weight %) Boron 0.01-2.0? Carbon 0.01-2.0? Sulphur Trace Phosphorus Trace Chromium ?5.0-15.0 Silicon 0.0-2.0 Molybdenum ?2.00-12.00 Tungsten ?0.5-10.00 Vanadium 0.5-5.0 Niobium 0.5-5.0 Cobalt ?0.5-10.0 Iron Balance The alloy is resistant to dissolution by the melt at temperatures of up to around 1800° F.

Abstract: A castable and machinable alloy suitable for submersion in a molten magnesium or magnesium aluminum melt has the following composition: ELEMENT CONTENT (weight %) Boron 0.01-2.0? Carbon 0.01-2.0? Sulphur Trace Phosphorus Trace Chromium ?5.0-15.0 Silicon 0.0-2.0 Molybdenum ?2.00-12.00 Tunsten ?0.5-10.00 Vanadium 0.5-5.0 Niobium 0.5-5.0 Cobalt ?0.5-10.0 Iron Balance The alloy is resistant to dissolution by the melt at temperatures of up to around 1800° F.

Abstract: This invention is related to galvanizing roll assemblies provided with self-aligning hydrodynamically lubricated roller-bearings used in equipment submerged in molten metal.

Abstract: Self-aligning bearings are used for supporting a roll in molten zinc or zinc/aluminum, to permit the roll's shaft to align with the bearing axis between the pair of holding arms supporting the roll, and a pump for delivering metal under pressure to the bearing surfaces interface force a hydrodynamic film to lubricate the bearing components.

Abstract: Self-aligning bearings are used for supporting a roll in molten zinc or zinc/aluminum, to permit the roll's shaft to align with the bearing axis between the pair of holding arms supporting the roll, and a pump for delivering metal under pressure to the bearing surfaces interface force a hydrodynamic film to lubricate the bearing components.

Abstract: This invention is related to galvanizing roll assemblies provided with self-aligning hydrodynamically lubricated roller-bearings used in equipment submerged in molten metal.

Abstract: An article of equipment intended to be submerged in molten zinc and low percentage aluminum/zinc melts, said article containing an alloy material comprised of carbon, chromium, nickel, tungsten, molybdenum, vanadium, niobium (columbium), cobalt, boron, iron and/or zirconium, wherein vanadium is present in an amount sufficient to limit the &ggr;-region.

Abstract: A jet reactor pump as used to circulate heated water into a swimming pool at near sonic velocity to heat the swimming pool water.

Abstract: Apparatus for moving a stream of molten metal in a bath of molten metal, includes a pump disposed in the met. The pump has a lower inlet opening with a strainer and a slinger rib to prevent the entry of debris that exceeds a predetermined diameter from passing through the pump.

Abstract: A roll apparatus for use within a bath of molten metal which has a first and second support arm with a pair of openings aligned along an axis, a strip engaging roll having an axial bore and a length as great as the width of the moving metal strip which passes around the roll, a shaft telescopically received in the roll and having a first end disposed in a first of aligned openings and a second end disposed in the other of the aligned openings and a structure carried on at least one of the arms engaging the shaft such that the shaft is axially movable in the aligned openings but non-rotatable with respect to the arms.

Abstract: A graphite support leg for positioning an object, such as a pump, in a bath of molten metal. The leg is enclosed in a ceramic sleeve, and an inert material is disposed in a clearance between the leg and the sleeve to protect the leg from the heat of the molten metal.