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| Number | Title | Issue Date |
| 6385230 | Homogeneous electrode of a reactive metal alloy for vacuum arc remelting and a method for making the same from a plurality of induction melted charges A homogeneous electrode of reactive metal alloy comprises an ingot with an axially disposed core made from one induction melted heat of the reactive metal alloy and having a diameter "d" and a length "L" and a body having an outer diameter at least 2 time... | 05/07/2002 |
| 5926499 | Method for preparation of fused magnesia particulates A fused magnesia ingot being discharged from an electric furnace at extremely elevated temperatures is thermally insulated to improve product yield. Thermal insulation provided with a blanket covering of refractory material can be used for this purpose.... | 07/20/1999 |
| 5373529 | Metals purification by improved vacuum arc remelting The invention relates to improved apparatuses and methods for remelting metal alloys in furnaces, particularly consumable electrode vacuum arc furnaces. Excited reactive gas is injected into a stationary furnace arc zone, thus accelerating the reduction r... | 12/13/1994 |
| 5142549 | Remelting apparatus and method for recognition and recovery of noble metals and rare earths Apparatus for recognition of metals in base materials includes an electron beam furnace in which base materials are vaporized by means of an electron beam gun and the vaporized materials are condensed as free atoms or are alloyed with other components of ... | 08/25/1992 |
| 4571259 | Apparatus and process for reduction of metal oxides An apparatus and process for the reduction in a plasma stream of a feed material including a comminuted metal oxide, a slag former and a reductant utilizing an enclosed horizontal reactor having a reduction chamber and a filter chamber therein separated b... | 02/18/1986 |
| 4265644 | Condensation of metal vapor A lead-splash condenser for condensing metal vapor from a hot gas stream, comprising a plurality of condensation chambers, spray generating means provided in each condensation chamber, an inlet for passage of a hot gas containing metal vapor to the first ... | 05/05/1981 |
