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| Number | Title | Issue Date |
| 8142539 | Method and arrangement for feeding an anode into a smelting reactor The invention relates to an arrangement for feeding an anode into a metallurgical smelting reactor (2), such as a flash converter, said arrangement including a feeding funnel (7) made of at least one part for feeding at least one anode (4) at a ... | 03/27/2012 |
| 7666243 | Fine grain niobium sheet via ingot metallurgy A method of making a silicon-containing alloy of niobium that includes: A) forming a blend comprising niobium powder and silicon powder and pressing the blend to form pressed blend; B) attaching the pressed blend t... | 02/23/2010 |
| 7181847 | Process for manufacturing a cylindrical hollow body and hollow body made thereby Process for manufacturing cylindrical hollow bodies with a circular cross-section using solid rough material of corrosion-resistant, martensitic chromium steels. A remelting block is produced and a tube blank is made therefrom, the tube blank being formed into a tub... | 02/27/2007 |
| 7037467 | Cr-based alloy excellent in balance between strength and ductility at high temperature A strength-ductility balance at a high temperature above 1000° C., particularly a high temperature above 1050° C. is improved by rendering a chemical composition of Cr-based alloy into Cr: not less than 60 mass %, C+N: not more than 20 mass ppm, S: not more than 2... | 05/02/2006 |
| 5958105 | Process for preparing metallic beryllium pebbles A method for stably producing metal beryllium pebbles each ranging from 0.1 to 1.8 mm in particle diameter and 0.05 to 0.6 mm in crystal grain average diameter. The metal beryllium pebbles obtained by the invention are excellent not only in tritium emissi... | 09/28/1999 |
| 5846287 | Consumable electrode method for forming micro-alloyed products A method for forming a wrought product from a starting metal such as tantalum, niobium, and alloys thereof. A consumable electrode is coated with at least a first alloy layer by means which provide for uniform thickness. Sufficient power is applied to the... | 12/08/1998 |
| 5633423 | Consumable anode, electrodissolution process applied to the decontamination of slightly radioactive liquid effluents and apparatus for performing the process According to the invention, a consumable anode constituted by a metal alloy incorporates between 20 and 70 wt. % iron, between 20 and 40 wt. % cobalt and between 5 and 30 wt. % aluminium. To these basic constituents can optionally be added elements such a... | 05/27/1997 |
| 5529598 | Bottom anode for a metallurgical vessel A bottom anode for a metallurgical vessel destined for producing a metal melt is formed by a metal bar provided with at least one through recess extending from outside of the metallurgical vessel as far as to within the metallurgical vessel. In order to s... | 06/25/1996 |
| 5524019 | Electrode for electroslag remelting and process of producing alloy using the same An object of the invention is to provide an ingot having improvement of and a prevention of occurrence of segregation when electroslag remelting method is used for producing a large size ingot and a super alloy which is sensitive to segregation. According... | 06/04/1996 |
| 5460701 | Method of making nanostructured materials A method and system for synthesizing nanocrystalline material. A system includes a chamber, a nonconsumable cathode shielded against chemical reaction by a working gas not including an oxidizing gas, but including an inert gas, a consumable anode vaporiza... | 10/24/1995 |
| 5325906 | Direct processing of electroslag refined metal A method for the electroslag refining of metal is provided. The method involves providing a refining vessel to contain an electroslag refining layer floating on a layer of molten refined metal. An ingot of unrefined metal is lowered into the vessel into c... | 07/05/1994 |
| 5226949 | Method and apparatus for removal of floating impurities on liquid A housing has a pair of chambers separated by a vertical wall. A hearth is on one side of the wall in the housing and is adjacent to an orifice which allows a stream of material, such as molten metal to pass from one chamber to the other. A gas is caused ... | 07/13/1993 |
| 5171358 | Apparatus for producing solidified metals of high cleanliness An apparatus for producing solidified metals of high cleanliness removes floating matter such as oxides from the surface of molten metals prior to melt atomization. The apparatus includes a water-cooled melt vessel having a dam extending from a sidewall o... | 12/15/1992 |
| 4997624 | Contact material for vacuum switches and process for manufacturing same Contact materials for vacuum switches with the base constituents copper and chromium and additive constituents containing tellurium or selenium and in which copper-telluride (Cu2 Te) or copper-selenide (Cu2 Se) are formed as a binary... | 03/05/1991 |
| 4985067 | Process and device for implementing hot chemical processes Method for melting or melt reducing chemical mixtures at temperatures which exceed the melting temperatures of highly-refractory linings. The method requires the steps of pressing the chemical mixture into bars and arranging the bars to form a cavern havi... | 01/15/1991 |
| 4906291 | Method for manufacturing melt materials of copper, chromium, and at least one readily evaporable component using a fusible electrode A method for manufacturing melt materials of copper, chromium, and at least one readily evaporable component as well as a fusible electrode for using this method is disclosed. More specifically, an arc melting method is used for the manufacture of melt ma... | 03/06/1990 |
| 4886547 | Powder manufacturing apparatus and method therefor The present invention provides a method of efficiently and stably manufacturing a high-purity metal powder of a desired particle size, which is used for powder metallurgy or the like, by generating arc 18 between electrodes 12 and 13 to melt the distal en... | 12/12/1989 |
| 4849016 | Combined ultra slow electron beam and vacuum arc melting for barrier tube shell material This is a process for making a very pure and very homogeneous zirconium material for use in lining the interior of zirconium alloy fuel element cladding. The improvement utilizes the forming of consumable feed material from generally virgin sponge materia... | 07/18/1989 |
| 4844746 | Method of producing a tantalum stock material of high ductility A method is described for the production of a ductile tantalum stock material for high-speed deformation use. A bar-shaped body is made from directly reduced tantalum powder of a given purity and is remelted repeatedly as a consumable electrode in an elec... | 07/04/1989 |
| 4832738 | Molybdenum-copper and tungsten-copper alloys and method of making Molybdenum-copper and tungsten-copper alloys are prepared by a consumable electrode method in which the electrode consists of a copper matrix with embedded strips of refractory molybdenum or tungsten. The electrode is progressively melted at its lower end... | 05/23/1989 |
| 4532703 | Method of preparing composite superconducting wire An improved method of preparing composite multifilament superconducting wire of Nb3 Sn in a copper matrix which eliminates the necessity of coating the drawn wire with tin. A generalized cylindrical billet of an alloy of copper containing at le... | 08/06/1985 |
| 4481030 | Tantalum-copper alloy and method for making A tantalum-copper alloy can be made by preparing a consumable electrode consisting of an elongated copper billet containing at least two spaced apart tantalum rods extending longitudinally the length of the billet. The electrode is placed in a dc arc furn... | 11/06/1984 |
| 4177059 | Production of yttrium This invention relates to refining yttrium. Known methods of refining yttrium involve the use of expensive crucibles made from tantalum or tungsten which are only available in relatively small sizes. According to the present invention there is provided a ... | 12/04/1979 |
| 4164420 | Master alloy for the preparation of zirconium alloys The invention relates to a master alloy intended for the preparation of zirconium-base alloys and more particularly for the preparation of alloys such as those known as zircaloy 2 and zircaloy 4 useful for nuclear applications. This master alloy contains,... | 08/14/1979 |
| 3979205 | Metal recovery method The present invention is a method of treating sea or land carbonaceous ore or reconstituted, formerly carbonaceous ore to recover therefrom noble metal values. If sea ore is used, noble metal containing composite organic material is first separated from a... | 09/07/1976 |
| 3947265 | Process of adding alloy ingredients to molten metal A process and an apparatus for making alloying additions to molten metals. The process consists of providing the material to be added in the form of strip, wire or rod: placing this material in close proximity to the molten metal to which the addition is ... | 03/30/1976 |
| 3933474 | Leech alloying Alloys are produced from an elongated metal bar comprising a substantially pure majority metal by attaching a length series of surface patches thereto made of compacted powder mixtures of minority alloying elements and the majority metal, then progressive... | 01/20/1976 |
