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WO/2003/064716A2 |
Filters (18) for filtering molten metals and alloys and method to remove contaminants. Filters (18) may include preferred imaging agents such as tungsten and gandolium, useful for N-ray radiography, X-ray analysis and neutron activation.
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WO/2003/063997A1 |
The invention relates to a method and apparatus for processing a suspension. According to the invention, a suspension is led into a washing column in which at least one filter element is present, so that near the filtering element, a pac...
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WO/2003/057930A1 |
A method for filtering molten aluminum containing suspended particles using an improved filtration media, the method comprising the steps of providing a source of molten aluminum and providing media having a coating thereon, the coating ...
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WO/2003/056044A1 |
The invention concerns an alumnium melting method, which consists in introducing solid aluminium into a furnace (2), melting the aluminium to form an aluminium bath (4), detecting variations in carbon monoxide (CO) and/or hydrogen (H2) c...
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WO/2003/053525A1 |
A molten metal reactor (10) quickly entrains a feed material in the molten reactant metal (16) and provides the necessary contact between the molten reactant metal and the feed material to effect the desired chemical reduction of the fee...
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WO/2003/048398A1 |
A method of condensing metallic vapour which includes the steps of directing a stream of the vapour into a sealed condenser which includes a receiving crucible; controlling the temperature inside the crucible so that the vapour condenses...
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WO/2003/048399A2 |
A solid material (M1X) (6) comprising a solid solution of a non-metal species (X) in a metal or semi-metal (M1) or a compound between the non-metal species and the metal or semi-metal is immersed in a molten salt (M2Y) (4). A cathodic po...
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WO/2003/041896A2 |
The invention relates to a method for producing metallic and intermetallic alloy ingots by continuously or quasi-continuously drawing billets out of a cold-wall induction crucible. The invention is characterized in that the alloy materia...
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WO/2003/042617A1 |
A crucible for melting a rare earth element alloy containing, as primary cpmponents, one or more selected from rare earth element oxides including Y2O3 and at least one of Al2O3 and Al2TiO5, characterized in that it is prepared trough th...
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WO/2003/040418A1 |
A method for producing a titanium material of a low oxygen content from a sponge titanium prepared by the kroll method, characterized in that a sponge titanium after separation under vacuum is cooled in a reaction vessel, a nitride film ...
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WO/2003/038138A1 |
A refining process for non−ferrous melt and equipment thereof. The process, including an adsorbing purification by letting a purified gas pass through the non−ferrous melt, is characterised in that, a vaccume is applied above the non...
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WO/2003/035917A2 |
A method, that enables the processing and recycling of magnesium-containing scrap, primarily the highly flammable scrap with large surface-to-volume ratio, (clips, flashing, turnings, chips), by way of melting, whilst maintaining a suita...
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WO/2003/034384A2 |
An Organic light emitting diode (OLED)/polymer OLED (PLED) displays and their operation with a precharge latency. Particularly, precharging operation of such a display device with a precharge switch latency. According to the operation, a...
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WO/2003/033750A1 |
The invention relates to a grain refining agent for cast aluminum products containing titanium, comprising particles formed of a matrix of a ductile material, in which are uniformly dispersed boron particles having an average particle si...
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WO2003033749A1 |
A method and apparatus for establishing and applying a voltage to precharge current-driven elements in a matrix. During ordinary scan cycles, a conduction voltage is sensed while the elements conduct a selected current. One or more such ...
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WO/2003/034587A1 |
A proportional plus integral compensation network employs a combination of linear components and switched capacitor components so as to reduce the physical size of the components required to implement the network. The compensation networ...
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WO/2003/034388A2 |
A method and apparatus for predicting current boost levels and applying them to precharge current-driven elements in a matrix, and a method of manufacturing devices for this purpose. Elements are driven during successive scan cycles, eac...
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WO/2003/033748A1 |
Magnesium alloys are heated to a molten state in preparation for hot-working thereof, for example, die-casting. The presence of inclusions within the magnesium alloys results in metallurgical defects therein and will adversely affect the...
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WO/2003/034576A2 |
A circuit for increasing the voltage/current level of a signal to drive a power transistor from a low voltage input. The gate drive circuit comprises a voltage multiplier for increasing the voltage level of a low voltage input signal, a ...
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WO/2003/033749A2 |
A method and apparatus for establishing and applying a voltage to precharge current-driven elements in a matrix. During ordinary scan cycles, a conduction voltage is sensed while the elements conduct a selected current. One or more such ...
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WO/2003/034386A2 |
A method and system for controlling a voltage to precharge current-driven elements in a matrix, and a method of manufacturing apparatus therefor. Current is delivered to a matrix connection during a conduction period so that an enabled e...
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WO/2003/033097A2 |
The present invention relates to the use of a high intensity, in-line rotor-stator apparatus to produce fine particles via antisolvent, reactive, salting out or rapid cooling precipitation and crystallization.
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WO/2003/034383A2 |
A method and apparatus for adapting and applying current boost levels to precharge current-driven elements in a matrix. Elements are driven during successive scan cycles, each having a precharge period and an exposure period. One or more...
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WO/2003/034387A2 |
An apparatus for generating and providing a stable reference voltage to a boost regulator that generates a drive voltage for a current source in e.g. an OLED or PLED display device. The apparatus comprises a clamping circuit that is conf...
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WO/2003/031663A1 |
The invention relates to a method for controlling the proportion of aluminum crystals in a mixture of molten aluminum alloy and aluminum crystals. According to the invention, the electrical resistance of the mixture is determined with th...
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WO/2003/031332A1 |
The invention relates to an apparatus for continuous slag treatment of molten silicon for removal of one a more impurity elements from the silicon, the apparatus comprising a vessel (1) intended to contain molten silicon and liquid slag....
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WO/2003/029501A1 |
The present invention provides an additive alloy consisting essentially of (7) percent to (45) percent by weight copper, (40) percent to (84.50) percent by weight zinc, and 0.1 percent to (4) percent by weight silicon, the alloy being fr...
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WO/2003/025236A1 |
The invention relates to a method to produce blister copper or high grade matte in a smelting reactor directly from a sulfidic copper concentrate containing material and/or finely ground copper matte, whereby oxygen-containing gas, coppe...
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WO/2003/023078A1 |
A metal melting closed furnace (10) which includes a main chamber (26), a circulation well (28) connected to the main chamber (26) by a communications passageway and a vortex well (84) having an exit outlet for molten metal into the main...
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WO/2003/020991A1 |
Method for the purification of an aluminium alloy containing an alloying element wherein the aluminium alloy is subjected to a fractional crystallisation process wherein at least the aluminium alloy is separated into a product stream hav...
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WO/2003/020990A1 |
The invention relates to a method of transforming colloidal silver into ionic silver consisting in subjecting a medium containing the colloidal silver to the action of ultrasound. The invention also relates to a method of purifying a dev...
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WO/2003/013688A1 |
In one aspect, the invention relates to a method of producing a porous body of refractory material having a predetermined configuration of pores, comprising : - (a) providing a plurality of porous body elements, each element being formed...
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WO/2003/010477A1 |
An induction melting furnace (10) comprises a melt chamber (12) for heating a melt either directly by magnetic induction, or indirectly by magnetic induction heating of the melt chamber (12), or a combination of the two, and a meter cham...
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WO/2002/101103A2 |
Methods for making various nickel based superalloys into engineering components such as rings, tubes and pipes (70) by melting of the alloys (60) in a vacuum chamber (50) or under a low partial pressure of innert gas and subsequent centr...
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WO/2002/100577A1 |
The invention provides an electric furnace for the production of magnesium alloys comprising a working chamber (1a) made in the form of a lined cylinder (6) with a horizontal symmetry axis and two adjacent heads (8), said heads having a ...
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WO/2002/100576A1 |
A molten metal treatment furnace (10) with metal treatment and level control includes a heating chamber (12) for containing and heating a supply of molten metal (60), a pump (22) connected to the heating chamber (12), a molten metal trea...
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WO/2002/096533A1 |
According to the present invention there is provided a ceramic foam filter for molten metal filtration comprising a preferably substantially flat inlet portion, an intermediate portion and an outlet portion that incorporates an undulatin...
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WO/2002/088400A1 |
An oxygen fueled combustion system includes a furnace (14) having at least one burner, an oxygen supply for supplying oxygen having a predetermined purity, and a carbon based fuel supply for supplying a carbon based fuel. The oxygen and ...
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WO/2002/086172A1 |
A method for producing a stainless steel with improved corrosion resistance includes homogenizing at least a portion of an article of a stainless steel including chromium, nickel, and molybdenum and having a PRE¿N? of at least 50, as ca...
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WO/2002/086171A1 |
The invention relates to steel processing in a ladle used for ferrous metallurgy. The inventive method for agitating steel in a ladle consists in blowing steel from the bottom with gas or a gas-powder mixture through blowing units. At le...
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WO/2002/075000A2 |
A modular apparatus for the production of molten metal by self reduction of agglomerates of metal oxide or of prereduced metal, which may be iron. The apparatus is typically a shaft furnace of modular construction and includes a pluralit...
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WO/2002/072895A1 |
The invention relates to a method for removing calcium from a sulfate solution in the zinc production process. Calcium is removed as an anhydrate from the raw solution coming from concentrate or ore leaching before the solution purificat...
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WO/2002/072897A1 |
A method of producing a nickel base alloy includes casting the alloy within a casting mold and subsequently annealing and overaging the ingot at least 1200 °F (649 °C) for at least 10 hours. The ingot is electroslag remelted at a melt ...
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WO/2002/066915A1 |
The crucible has an electrically insulating or electrically conducting side wall - favourably cylindrical -, a bottom that closes off the space that is delimited by it, and - in a given case - a rim and/or nose bit at the opposite end fa...
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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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