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WO/2002/058863A1 |
A bottom heated holder furnace (10) for containing a supply of molten metal includes a storage vessel (20) having sidewalls (22) and a bottom wall (24) defining a molten metal receiving chamber (26). A furnace insulating layer (32) lines...
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WO/2002/058862A2 |
The melter furnace includes a heating chamber (16), a pump chamber (18), a degassing chamber (20), and a filter chamber (22). The pump chamber 818) is located adjacent the heating chamber (16) and houses a molten metal pump (30). The deg...
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WO/2002/057502A2 |
A process is described for treating molten metal with a particulate treating agent. A melt of a metal, e.g. aluminum, is provided in a treatment vessel such as a ladle and a mixing impeller is positioned substantially below the surface o...
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WO/2002/053789A1 |
The invention relates to a method for eliminating and recovering zinc contained in compacted galvanized scrap, which is normally used as raw material for melting in foundries and steel works, wherein zinc is evaporated and separated from...
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WO/2002/052051A2 |
A method for heartless processing of a solid metallic material consisting essentially of titanium or other metal or alloy thereof which includes providing a solid metal block (10) having processing surface (14) and a base surface (12) an...
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WO/2002/050320A1 |
A process for purifying zinc wherein a zinc containing impurities is introduced to a rectifying column having a plurality of column plates for purification, characterized in that the distillation of zinc is carried out while maintaining ...
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WO/2002/040197A2 |
A method for refining and casting metals and metal alloys includes melting and refining a metallic material and then casting the refined molten material by a nucleated casting technique. The casting metals and metal alloys is refined by ...
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WO2001048253A9 |
A method for combining a first metal with a second metal where the melting point of the second metal is higher than the melting point of the first metal. The first and second metals are melted in separate crucibles. The second molten met...
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WO/2002/040726A1 |
The invention relates to a method for producing metallic ingots or strands, especially from steel and Ni and Co based alloys, by melting self-consuming electrodes in an electroconductive slag bath, using an alternating current or a direc...
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WO/2002/038820A2 |
The invention relates to a method for producing metal blocks or bars, especially from steels and Ni- and Co-based alloys, by melting off consumable electrodes in an electroconductive slag bath using alternating or direct current in a sho...
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WO/2002/034954A2 |
The present invention is concerned with a method for extracting selectively a metal from a metal mixture in the gaseous phase. The method comprises heating the metal mixture to vaporize the metal; condensing the metal contaminants presen...
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WO/2002/033137A1 |
The invention concerns a rotary injector for injecting gas (2) in a liquid metal (3), said injector comprising a drive shaft, stirring means, gas circulating means, gas (2) emitting means (8, 9). Said injector is characterised in that th...
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WO/2002/029125A1 |
A high purity zirconium or hafnium which is extremely reduced in the contents of an alkali metal such as Na or K, a radioactive element such as U or Th, a transition metal or heavy metal or high melting point metal such as Fe, Ni, Co, Cr...
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WO/2002/022900A2 |
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...
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WO/2002/021606A1 |
Disclosed is a process for producing a p-type Bi¿2?Te¿3? based thermoelectric material capable of improving low yield in producing a thermoelectric material by a zone melting method can be improved, in which a first ingot having Bi¿2?...
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WO/2002/020408A1 |
The invention concerns a method for separating a metal (1) from a metal (2), preferably zirconium from hafnium, which consists in dissolving said metals in an aqueous solution wherein said metals are in a state preventing them from passi...
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WO/2002/020858A1 |
The invention concerns a method for recuperating metal elements from zinc-bearing raw materials, characterised in that it consists in extracting from said zinc-bearing raw materials the elements having affinity for lead, by contacting (3...
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WO/2002/020860A1 |
A method for processing molten aluminum and a shaft (4) for use in the method for treating molten aluminum using an impeller (6) mounted on the shaft (4) comprising a protective refractory sleeve (7) resistant to attack by molten aluminu...
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WO/2002/012575A2 |
The invention relates to a method for protecting the surface of a magnesium melt, or a melt of an alloy with magnesium, whereby a protective layer is placed on the surface of the melt. The method is characterised in that carbon dioxide i...
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WO/2002/008476A1 |
The invention relates to a method and to a device for reducing the oxygen content of a copper melt. One or a plurality of porous plugs is disposed in the lower zone of the copper melt, when seen in a perpendicular orientation, from which...
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WO/2002/000379A1 |
A method for producing a fine powder of a magnetic rare earth alloy, which comprises placing a mixture containing a rare earth metal and a transition metal as raw materials in a crucible (12), subjecting the mixture to an induction heati...
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WO/2001/098547A2 |
A method of processing flue dust that contains one or more compounds from a first group of zinc, lead and cadmium compounds, and contains iron compounds, involves heating the flue dust to cause a substantial portion of one or more of the...
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WO/2001/092587A1 |
The invention concerns a method for making a Fe-Ni strip whereof the chemical composition comprises, by weight: 36 % $m(F) Ni + Co $m(F) 43 %; 0 % $m(F) Co $m(F) 3 %; 0.05 % $m(F) C $m(F) 0.4 %; 0.2 % $m(F) Cr $m(F) 1.5 %; 0.4 % $m(F) Mo...
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WO/2001/083836A2 |
This invention relates to a method for preventing the ignition of molten magnesium by contacting the molten magnesium with a gaseous mixture comprising a fluorocarbon selected from the group consisting of perfluoroketones, hydrofluoroket...
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WO/2001/081639A1 |
A consumable electrode feed system for a refining system provides consumable electrodes to an electroslag refining system in a continuous manner. The consumable electrode feed system comprises a side feed device that feeds consumable ele...
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WO/2001/079569A1 |
Methods for reducing inclusion content of sputter targets and targets so produced are disclosed. Inclusions (93) may be reduced by adding a small amount of Si to the molten A1 or molten A1 alloy followed by filtering of the molten metals...
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WO/2001/079570A1 |
The invention concerns a method for eliminating bismuth from molten lead with magnesium and calcium, which consists in inputting magnesium and calcium in the form of lumps of two Mg-Ca alloys, one containing predominantly Mg, the other c...
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WO/2001/077396A1 |
A process for continuous vacuum purification of a molten metal, which comprises agitating a molten metal (1) in a melt agitation portion (B) in a vacuum treatment chamber having a reduced pressure and being preheated, to thereby vaporize...
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WO2000023628A9 |
A method for refining a titanium metal containing ore such as rutile or illmenite or mixtures to produce titanium ingots or titanium alloys and compounds of titanium involves production of titanium tetrachloride as a molten slag, by proc...
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WO/2001/075183A2 |
The present invention relates to systems of methods of detecting and measuring inclusions in liquid metals. More particularly, non-metallic inclusions having a conductivity level different from the liquid metal melt are forced to migrate...
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WO2000039514A9 |
A magnet for increasing a yield attained during a process in which, when separating metals from scraps occurring during a rare earth magnet production process, alloy materials for rare earth magnet are melt-refined so as to positively se...
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WO/2001/068924A1 |
The invention relates to a method for producing a metal alloy. A certain, desired quantity of an alloy component which is gaseous in the normal state is supplied to the metal alloy in a container and under excess pressure. The method is ...
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WO/2001/068927A1 |
A continuous nickel matte converter and method for the efficient production of low iron nickel-rich mattes from high-iron nickel-rich mattes, with minimal environmental impact. The present invention processes high-iron, nickel-rich prima...
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WO/2001/066809A1 |
A metal having a high chromium content, characterized in that it is produced in an arc melting furnace and contains Cr in an amount of 85 % or more and has an Al content of 0.005 % or less, an Si content of 0.1 % or less and an S content...
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WO/2001/062418A1 |
Casting systems and methods form a hollows metal casting, in which the hollows metal casting comprises a fine-grain, homogeneous microstructure. The microstructure is essentially oxide- and sulfide-free, segregation defect free, and esse...
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WO/2001/062992A1 |
Nucleated casting systems and methods comprise form castings under reduced pressure. The casting system forms a casting comprising a liquidus portion that receives the refined liquid metal and a solidified portion, the casting further co...
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WO/2001/062419A1 |
A casting system and method for producing a metal casting is provided. The metal casting can comprise a fine-grain, homogeneous microstructure that is essentially oxide- and sulfide-free, segregation defect free, and essentially free of ...
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WO/2001/061059A1 |
The invention relates to a continuously operating method for removing impurity gases dissolved in metal by using a reactant (7) that remains in a solid state and is lighter than the metal to be refined. In the method, at least flows (P) ...
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WO/2001/061060A1 |
The invention relates to a method for producing hollow moulded bodies (48) from metal - especially from steels and Ni and Co base alloys according to an electroslag melting or casting method - using a short, electroconductive, water-cool...
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WO/2001/058622A1 |
The invention relates to a method for producing essentially segregation-free and especially freckle-free casting moulds from metal, especially high-alloy steels as well as Ni and Co base alloys having great dimensions, according to an el...
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WO/2001/057284A1 |
The present invention relates to fullerene, nanotube, or nanofiber filled metals and polymers. This invention stems from a cross-disciplinary combination of electromagnetic and acoustic processing and property enhancement of materials th...
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WO/2001/057283A1 |
A casting system (3) with auxiliary cooling onto a liquidus portion (148) of the casting (145) comprises an electroslag refining system (1) as a source of liquid metal; a nucleated casting system (2); and at least one cooling system (500...
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WO/2001/055462A1 |
The present invention concerns a process for refining silver bullion, i.e. raw silver containing generally more than 90 % silver besides Se, Pb, Au, Cu and platinum group metals (PGM) as main impurities. The process comprises the steps o...
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WO/2001/051676A2 |
The invention relates to a method for obtaining material from slag, whereby said material is obtained from slag which is still in liquid form. The invention also relates to a device for obtaining material from slag, which is provided wit...
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WO/2001/046082A1 |
A method of handling liquid non-ferrous metals in which the liquid metal is treated while coming into contact with a solid refractory material. The invention is characterised in that the solid material is Ti¿3?SiC¿2?. According to one ...
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WO/2001/042531A1 |
A component is made of or coated with a refractory material for use at high temperature, e.g. in an aluminium production cell, an arc furnace or an apparatus for treating molten metal. The refractory material comprises particles of a ref...
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WO1998039490A9 |
A filter cartridge for a molten metal filtering system is provided with a modular construction in which the filter elements are adapted to be removably mounted to an end plate. The filter elements may be removed separately from the filte...
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WO/2001/042168A1 |
An aluminium-wettable protective coating on a substrate, for use at elevated temperature in an oxidising and/or corrosive gaseous and/or molten environment is disclosed. The coating (20A, 20B, 20C, 20D) is applied to protect the substrat...
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WO/2001/040526A1 |
A process for producing a steel includes subjecting at least a portion of a melt of the steel to electroslag remelting and, in a subsequent step, heating the steel to a temperature at least as great as the lowest temperature at which all...
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WO/2001/036695A1 |
The invention relates to a metallurgy of light alloys in particular to methods for ultrasonic treatment of melts in a production of shaped castings from hypereutectic silumins of a piston group. The method consists of a degasification an...
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