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| Number | Title | Issue Date |
| 8025712 | In-line salt refining of molten aluminium alloys The present invention describes an apparatus and a process for in-line substantially continuous degassing of aluminium and/or aluminium alloys, in absence of chlorine and through the injection of at least one metal halide salt that includes a halogen and water and a... | 09/27/2011 |
| 7177384 | Aluminum composite material, manufacturing method therefor, and basket and cask using the same A basket has a lattice-like section for accommodating individual used nuclear fuel in predetermined positions in a cask. The basket is made from aluminum composite material having good neutron absorption ability, excellent mechanical property and workability. The al... | 02/13/2007 |
| 7025113 | Semi-solid casting process of aluminum alloys with a grain refiner A method for the refining of primary aluminum in hypoeutectic alloys by mixing a titanium based grain refiner into a solid/semi-solid hypoeutectic slurry is described. The method provides control of the morphology, size, and distribution of primary Al in a hypoeutec... | 04/11/2006 |
| 6960239 | Process and apparatus for adding particulate solid material to molten metal An apparatus is provided for the treatment of molten metal, e.g. aluminum, with a particulate treatment agent and a gas. This includes a vessel for holding molten metal, a rotary device for breaking up particulate treatment agent and gas within the molten metal and ... | 11/01/2005 |
| 6928869 | Stick for measuring the level of a molten metal bath A measurement rod for measuring the level of a liquid bath is cooled but is provided with a solid end piece so that the bath cannot solidify in front of the orifice of the measurement gas injected in the bath, for which the pressure is being measured. ... | 08/16/2005 |
| 6887424 | Inline degassing apparatus An inline degassing apparatus for removing solid solution gases as well as nonmetallic inclusions from molten metal in a degassing container, to which the molten metal is continuously introduced for degassing operation and from which the degassed molten metal is con... | 05/03/2005 |
| 6645270 | Method of heating a crucible for molten aluminum A method of heating molten aluminum in a container utilizing gas stirring means.... | 11/11/2003 |
| 6572676 | Process for refining aluminum A process for melting an aluminum charge into molten aluminum and simultaneously refining the molten aluminum to produce a refined molten aluminum having a low hydrogen content in a direct fired furnace (10) is provided.... | 06/03/2003 |
| 6488743 | Metal melt treatment equipment Equipment for the treatment of a liquid such as a metal melt has one or more rotors (5) for the supply of gas and/or particulate material to the liquid in a reaction chamber (1). The reaction chamber (1) is closed and has an inlet (3) and an outlet (13) a... | 12/03/2002 |
| 6375712 | Method of removal of light metals from aluminum Improved apparatus and method are described for the removal of light metals; sodium, lithium, calcium and magnesium, from virgin aluminum tapped from a Hall Heroult reduction cell using LiF-modified or LiF+MgF2 electrolyte. The method is perfor... | 04/23/2002 |
| 6217632 | Molten aluminum treatment A method of grain refining aluminum, the method comprising providing a molten aluminum body containing at least one of the metals selected from the group consisting of titanium, zirconium, vanadium, molybdenum, manganese, silicon, tungsten, tantalum, niob... | 04/17/2001 |
| 6162279 | Method for fluxing molten metal using shaft design A shaft for use in a method for treating molten aluminum using an impeller mounted on the shaft comprising a protective refractory sleeve resistant to attack by molten aluminum, the protective sleeve mounted on the shaft by casting to extend above and bel... | 12/19/2000 |
| 5968223 | Method for heating molten metal using heated baffle A method of heating a body of molten metal passing through a treatment bay. The method comprises providing a body of molten metal in a treatment bay and providing a baffle heater in the treatment bay to contact the molten metal. The baffle heater is compr... | 10/19/1999 |
| 5935295 | Molten aluminum treatment A method of grain refining aluminum, the method comprising providing a molten aluminum body containing 1 to 3000 ppm titanium. A material reactive with the titanium is introduced preferably in gaseous form to the aluminum body. The material has a componen... | 08/10/1999 |
| 5917114 | Degassing of liquid aluminum and other metals Offgas recycling processes, including an argon degassing embodiment which cyclically regenerates one treatment flow path while the other treatment flow path is treating the offgas. The system is changed into a second mode to regenerate the previously trea... | 06/29/1999 |
| 5718742 | Ladle and impeller rotation for fluxing molten metal An improved method for processing a body of molten metal using an impeller and a rotatable container, the method including increasing shear forces in the body of molten aluminum and reducing vortex formation, the method comprising the steps of providing a... | 02/17/1998 |
| 5662725 | System and device for removing impurities from molten metal A system and device for removing impurities from molten metal comprising a pump within a chamber having an outlet port. The pump creates a flow or stream of molten metal through the outlet port. One or more gas-release tubes are provided adjacent the outl... | 09/02/1997 |
| 5660614 | Gas treatment of molten metals A method of and apparatus for treating molten metal to achieve effective removal of such unwanted inclusions as gases, alkali metals, entrained solids, and the like. The method comprises continuously introducing molten metal into a container forming a tro... | 08/26/1997 |
| 5630863 | Method for fluxing molten-metal An improved method for dispersing high levels of fluxing gas in a body of molten aluminum using an impeller or disperser to disperse the fluxing gas in the body of molten aluminum, the method producing increased shear forces in the body of molten aluminum... | 05/20/1997 |
| 5616167 | Method for fluxing molten metal An improved method for treating a body of molten aluminum using an impeller suitable for dispersing fluxing gas or solid particles in the body of molten aluminum. The method produces increased shear forces in the body of molten aluminum and reduces vortex... | 04/01/1997 |
| 5527381 | Gas treatment of molten metals A method of and apparatus for treating molten metal to achieve effective removal of such unwanted inclusions as gases, alkali metals, entrained solids, and the like. The method comprises introducing molten metal into a trough, such as the trough provided ... | 06/18/1996 |
| 5462581 | Method for treating molten metal There is provided an improved method for dispersing a treatment media in a body of molten metal using an impeller to disperse the media in the body of molten metal, the method producing increased shear forces in the body of molten metal and reducing vorte... | 10/31/1995 |
| 5462580 | Method for molten metal treatment Disclosed is an improved method for dispersing a treatment media in a body of molten metal using an impeller, nozzles, and other mixing means to disperse the media in the body of molten metal, the method producing increased shear forces in the body of mol... | 10/31/1995 |
| 5435528 | Porous plug structure for aluminum furances A porous plug assembly for use in a vessel containing molten metal, such as a melting furnace or a holding furnace, for introducing fluxing or other gases into the molten metal. The porous plug assembly includes a frustoconical porous refractory core memb... | 07/25/1995 |
| 5397377 | Molten metal fluxing system An improved process for treating a body of molten metal is disclosed wherein a rotating impeller is used to disperse treatment media in the body. The process comprises the steps of providing a body of molten metal to be treated, the body having an upper r... | 03/14/1995 |
| 5364450 | Molten metal treatment There is provided an improved method for dispersing a treatment media in a body of molten metal using an impeller to disperse the media in the body of molten metal, the method producing increased shear forces in the body of molten metal and reducing vorte... | 11/15/1994 |
| 5342429 | Purification of molten aluminum using upper and lower impellers Process and apparatus for improving fluxing gas dispersion in treating molten aluminum by increasing the fluxing gas surface area. The process includes the use of a molten body of aluminum and a gas dispersing unit in the body of molten aluminum, the disp... | 08/30/1994 |
| 5340379 | Jet flow device for injecting gas into molten metal and process A device is described for injecting gas into molten metal, e.g. molten aluminum, in a furnace chamber. It comprises: (a) a stirring apparatus having a reservoir chamber separate from the furnace chamber, a connector portion with an orifice connecting the ... | 08/23/1994 |
| 5318278 | Apparatus for making mixtures of reactive melts A method for the preparation of a mixture of at least one reactive element or an alloy thereof and a liquid metal melt, including introducing the reactive element or alloy thereof, in a liquid state and under pressure, within, i.e. below the surface of, t... | 06/07/1994 |
| 5104616 | Method for production of master alloys for grain refining treatment of aluminum melts A method for the production of master alloys intended for grain refining of aluminum melts and being of the type which comprises of aluminum and 1-15 percent by weight titanium, where titanium is present in the form of intermetallic crystals of titanium a... | 04/14/1992 |
| 5080715 | Recovering clean metal and particulates from metal matrix composites A process is described for removing all reinforcing particles contained in metal matrix composite scrap materials. This new technique involves providing a treatment vessel for holding a melt of an aluminum matrix composite to be recycled. Heating means ar... | 01/14/1992 |
| 5024696 | Apparatus and method for degassing molten metal An improved apparatus and method of the inline degassing of the molten metal employing a fluxing gas.... | 06/18/1991 |
| 4992241 | Recycling of metal matrix composites A process is described for recycling scrap aluminum-matrix composites, e.g. gates and risers from a casting operation. A melt of the scrap composite is provided in a treatment vessel by heating at a temperature of 720°-750° C., such as to avoid unwanted... | 02/12/1991 |
| 4954167 | Dispersing gas into molten metal Gas is dispersed into molten metal by immersing a shaft-supported impeller into the molten metal and by pumping gas through the shaft and out of the impeller. The impeller is in the form of a rectangular prism having sharp-edged corners that shear the gas... | 09/04/1990 |
| 4931091 | Treatment of molten light metals and apparatus An apparatus and process are described for treating molten metal. The invention comprises: (a) a heated vessel having inlet and outlet means for the continuous flow of molten metal downwardly through the vessel, (b) a perforated plate extending horizontal... | 06/05/1990 |
| 4908060 | Method for treating molten metal with a rotary device A rotary device for dispersing gas in molten metal comprises a hollow shaft and a hollow rotor attached to the shaft, the rotor having a plurality of vanes extending from the shaft towards the periphery of the rotor and dividing the rotor into a plurality... | 03/13/1990 |
| 4897115 | Method of, purifying a melt, which, besides one or more impurities, essentially contains a light metal, in particular aluminum Apparatus for purifying a melt which, besides one or more impurities to be volatilized, contains essentially a light metal, in particular aluminum. The apparatus comprises a vacuum processing vessel, a vacuum pump, one or more conduits for supplying the m... | 01/30/1990 |
| 4867422 | Rotary device, apparatus and method for treating molten metal A rotary device for dispersing gas in molten metal comprises a hollow shaft and a hollow rotor attached to the shaft, the rotor having a plurality of vanes extending from the shaft towards the periphery of the rotor and dividing the rotor into a plurality... | 09/19/1989 |
| 4861352 | Method of separating a gas and/or particulate matter from a liquid The present invention relates to a method and apparatus for separating a gas, vapor or particulate matter or combinations thereof from a liquid. The liquid is contacted with a stripping gas or vapor which is immiscible in or which has low solubility in the liq... | 08/29/1989 |
| 4808372 | In situ process for producing a composite containing refractory material An in situ process is provided for producing a composite comprising a refractory material dispersed in a solid matrix. A molten composition comprising a matrix liquid, and at least one refractory carbide-forming component are provided, and a gas is introd... | 02/28/1989 |
