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Patent Searching and Data


Matches 351 - 400 out of 3,715

Document Document Title
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...  
WO/2002/066914A1
Atomizing systems used in prior art to produce powders are normally successively charged with a liquid material for atomizing from one or more melting pots. The powder thus arising can have extremely inhomogeneous properties as a result ...  
WO/2002/054831A2
An induction furnace system has an active induction coil surrounding a crucible. A passive induction coil also surrounds the crucible. The passive induction coil is connected in parallel with a capacitor to form an L-C tank circuit. A so...  
WO/2002/046110A2
When waste glass that is highly contaminated with organic impurities is melted, these impurities cause the appearance of so-called 'black grains ' which cannot be eliminated in a subsequent refining process and which therefore impair the...  
WO/2002/046672A1
The invention relates to a smelting furnace, particularly a smelting furnace for melting glass. Said smelting furnace comprises a smelting unit which is accommodated in a combustion chamber. Previously, the discharge of the melt from an ...  
WO/2002/042230A2
A crucible (10) for melting a silica for fusion forming of said silica into a desired shape such as a tube. The crucible (10) having a main body with inner and outer surfaces comprised of a refractory material (11). In addition, the inne...  
WO2001091940A9
A container system (10A) including a vessel (20A) for holding a thixotropic semi-solid aluminum alloy slurry during its processing as a billet (60A) and an ejection system for cleanly discharging the processed thixotropic semi-solid alum...  
WO/2002/025172A1
An ash melting device, wherein a crucible is used for the innermost layer of a furnace body to reduce the wear of a furnace material so as to reduce the size of the furnace body, the crucible is formed in a cartridge for extremely simpli...  
WO/2001/092802A1
Apparatus (10) for heat treating a heat treatable material including a housing (12) having an upper opening (16) for receiving a heat treatable material at a first temperature, a lower opening (18), and a chamber (14) therebetween for he...  
WO/2001/062685A1
The present invention provides a process for producing alumina matrix carbide and boride reinforced ceramic composites wherein for any particular composite, the relative density is about 97 % or more of the theoretical density. The compo...  
WO/2001/053222A1
The invention relates to a device for the melting or purifying of inorganic substances, in particular of glass, which comprises a number of metal tubes which may be attached to a cooling medium and which are arranged next to each other, ...  
WO/2001/047656A1
The invention concerns a novel smelting furnace for molding, comprising a nozzle for charging which connects with a liquid metal storage tank, an outlet nozzle starting at said tank and leading to a taphole of the molds, wherein an addit...  
WO/2001/046077A1
The invention relates to a crucible characterized in that said crucible is of high purity and high opacity or exhibits low transmission characteristics in the IR range and is derived from a quartz glass crucible known in prior art. Said ...  
WO/2001/035701A1
An induction melting system (78) uses a crucible (50) formed from a material that has a high electrical resistivity or high magnetic permeability and one or more inductor coils (52) formed from a wound cable consisting of multiple indivi...  
WO/2001/030709A1
The invention concerns a method for draining a molten material (28), such as glass, contained in a cooled crucible (10) which consists in using a drawing device (18) comprising an elongated pouring orifice (30), a cooled gate valve (32) ...  
WO/2001/000892A1
The invention concerns a tungsten-based sintered material, with relative mean density higher than 93 % and HV┬┐0.3? hardness $m(G) 400. It comprises: tungsten having a purity higher than 99.9 %, an additive consisting of nickel and/or co...  
WO/2000/075587A1
The invention relates to the emptying of melting vessels (1) by tipping. According to the invention, the melting vessel (1) is placed on column-shaped bases (6). During the tipping process, the melting vessel (1) is raised at the side an...  
WO/2000/068440A1
A device (1) for induction-heating and melting metal oxides-containing powder and granular material, which can suitably remove metals in burned ash and flying ash to render them harmless, recover metals with high purities and recovery ra...  
WO/2000/056482A1
A method and apparatus are provided for making high purity and preferably oxygen free substantially void free and inclusion free copper castings, useful to make sputtering targets. The method comprises melting high purity copper in a cov...  
WO/2000/051400A1
The invention concerns an installation for treating by heat-induction a metal material in a vessel, comprising: a first winding (5) including, in series, at least a first coil (51) of at least one turn and at least a second coil (52) of ...  
WO/2000/048770A1
The invention relates to a crucible induction furnace for producing cast parts consisting of aluminium and magnesium alloys, especially particle-reinforced alloys. According to the invention, the material being melted is directly, induct...  
WO/2000/048771A1
The invention concerns an appliance for moulding parts made of very reactive metal or mixture of metals, comprising, inside a vacuum chamber (15) a cold induction-heated crucible (1) whereof the base comprises a removable sectored plug (...  
WO/2000/044959A1
The present invention provides a coating for an article for use with molten metal, the coating obtainable by depositing the coating on the article by magnetron sputtering. Unbalanced magnetron sputtering is preferred. The molten metal ma...  
WO/2000/032305A1
A method of producing porous calcined granules of a non-combustible material, the method including calcining agglomerates of said non-combustible material and a combustible material to effect combustion of said combustible material, wher...  
WO/2000/027765A1
A heat treatment oven (1) defines a plurality of inner chambers or zones for receiving Cathode Ray Tubes stacked in two rows and vertically orientated with front faces of tubes facing one another. The oven includes heating means in the f...  
WO/2000/025078A1
A furnace for melting and retaining aluminum ingots, comprising an aluminum ingot preheating tower, a melting crucible furnace for receiving aluminum ingots supplied from the preheating tower while being disposed directly below the prehe...  
WO/2000/012766A1
A process for producing metals from a metalliferous feed material in an electric furnace is disclosed. The process includes the steps of forming a molten bath having a metal layer and a slag layer on the metal layer in the furnace and su...  
WO/2000/008216A1
Apparatus for use in the secondary refinement of a metal, particularly steel, is disclosed, which includes an elongated vessel (10) of which the length to width ratio is greater than 2, the vessel (10) being provided with at least one ch...  
WO/2000/004197A1
Apparatus for a metal reduction and melting process is disclosed, in which a metal and carbon containing burden (15) is heated in an induction furnace (10) comprising a heating vessel (11) in which the burden (15) can float in at least o...  
WO/1999/064369A1
The present invention relates to apparatuses for preparing a crystal of the cremated remains which use a gas furnace, an electric furnace and a high-frequency furnace. One method for preparing a crystal of the cremated remains comprises ...  
WO/1999/061194A1
The invention relates to a disposable transportable reaction crucible for a metallothermic, especially aluminothermic, welding portion, comprising a crucible cover (2) with a cylindrical casing (3) and a flat floor (4); a lid (11) and a ...  
WO/1999/005330A1
The invention concerns metallothermal process and continuous drawing of a metal product consisting of at least one metal, comprising: a step for melting the metal in a first cold crucible (1) heated by induction where the reduction of sa...  
WO/1999/001011A1
Electric heating elements (14) and heaters suitable for use in molten metals such as molten aluminum are provided. An improved electric heater assembly (10) suitable for heating molten metal is disclosed. The electric heater assembly (10...  
WO/1998/058220A1
A channel inductor with improved thermal and overall efficiency and reduced need for maintenance. The channel inductor comprises a closed-loop core (12), a primary winding (11) arranged around the core and a refractory lining (13) in whi...  
WO/1998/008780A1
A unibody, monolithic, one-piece negative draft crucible (40) for an MBE effusion source (110). The crucible (40) maximizes capacity, uniformity and long-term flux stability, and minimizes oval defects, depletion effects, and short-term ...  
WO/1998/004749A1
A metal reduction and melting process which involves the heating of a burden comprising a metal containing component and a carbon containing component in a channel type induction furnace in order to reduce such metal containing component...  
WO/1998/005185A1
An insulating material melting furnace including a cooled crucible (10) with a continuous metal side wall, a sectored cooled floor (12), and at least one field magnet (28) arranged under the floor and forming the only heating means. The ...  
WO/1998/003830A1
The object of the invention is a melting unit to melt an entire railway car and other voluminous metallic manufacture contaminated by asbestos. The melting unit is composed by lateral walls (1). The burners (2) are placed on lateral wall...  
WO/1997/040197A1
A metal containing compound reduction and melting process which entails feeding a burden (15) comprising a mixture of the metal containing compound and a suitable reductant in particulate form into an electrically heatable vessel (11) wh...  
WO/1997/039155A1
A process and an apparatus are disclosed for improved recovery of metal from dross, wherein a dross treating furnace is provided with a refractory wall or lining with good capacity to store and conduct heat. This furnace is preheated to ...  
WO/1997/036459A1
An induction heating device for surface treating the teeth (11) of a mechanical part on which each tooth (111) has a projecting tip (111s) and a tooth root linking the tooth to an adjacent tooth, wherein an induction coil (12, 12') is sp...  
WO/1997/032047A1
A furnace for smelting and retiring metallic and non-metallic ores comprising a chamber (9) for processing said ore and an electric heating means (6) arranged in said chamber (9), characterised in that said chamber (9) is hermetically cl...  
WO/1997/026219A1
Apparatus suitable for vitrifying nuclear waste comprises a tunable microwave cavity (10) connected by a first wave guide (16) to a source of microwave energy (18); cooling coils (12) for cooling the exterior of the cavity; a hopper (14)...  
WO/1997/018337A1
A method for producing metal castings comprising the steps of: i) providing a conditioning furnace, having an inlet channel and an outlet channel, with pre-treated molten metal; and ii) reducing the height of molten metal in the outlet c...  
WO/1997/018427A1
The invention relates to a safety device for a vessel jacket, especially for tipping metallurgical furnaces or vessels, by means of which overheating at any point on the vessel jacket can simply and reliably be detected. In order to init...  
WO/1997/017477A1
An apparatus for holding molten metal in a container having an opening in the bottom thereof, comprising an electromagnet for forming a horizontal magnetic field in a lower part of the molten metal in the container, and an electrically c...  
WO/1997/016051A1
The present invention relates to an electric heating element comprising one or more electric resistance elements (3) arranged in one or more closed cavities (2) in a block (1) consisting of high temperature resistant, heat conducting mat...  
WO/1997/006060A1
A method and apparatus for pouring molten metal in a crucible (2) over a pouring lip and into an opening (24) in a mold (22). The crucible (2) and the mold (22) are inside a chamber under vacuum, and the crucible (2) is supported on a ho...  
WO/1997/005440A1
A heated crucible apparatus (10) allows the adjustment of a thermal profile within a combustion chamber (12) surrounding the crucible (15) by introducing a sub-stoichiometric or a super-stoichiometric mixture of fuel and oxidant into the...  
WO/1996/034994A1
A method and mandrel apparatus (55) for making a unibody containment structure, such as a crucible (40) formed of PBN, having a negative draft (B), via chemical vapor deposition.  

Matches 351 - 400 out of 3,715