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WO/2002/047850A1 |
An apparatus (10) and a method for reducing inclusions, shrinkage blowholes, porosity and segregation in metal castings during the casting process, and for improving the grain structure, mechanical properties and yield of ingots and othe...
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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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WO/2002/020853A1 |
In its first stage this invention concerns an energy supply process and then goes on to act as a heat insulator on the surface of metal baths for pig iron, steel, and so on. At integrated steelworks, after the blast furnaces have been ta...
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WO/2002/018072A1 |
An automatic continuous casting system for producing a cast body, comprising: a casting apparatus that makes use of unidirectional solidification of molten metal and includes a molten metal reservoir (4) and a mold (5), in which molten m...
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WO/2002/018076A1 |
An apparatus for casting an ingot includes a molten metal reservoir (51) positioned at an upper portion, a casting chamber (5) positioned at a lower portion and a partition wall (3) between the reservoir and the chamber, a sprue (7) form...
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WO/2001/098003A1 |
The invention relates to exothermic sleeve compositions comprising (a) an oxidizable metal where the oxidizable metal comprises aluminum dross, and (b) an oxidizing agent capable of generating an exothermic reaction. The invention also r...
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WO/2001/096620A2 |
High purity niobium metals and alloys containing the same are described. The niobium metal preferably has a purity of at least 99.99 % and more preferably at least 99.999 %. In addition, niobium metal and alloys thereof are described, wh...
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WO/2001/094653A1 |
A hydrogen-occluding alloy of the AB¿5? type which has a CaCu¿5?-form crystal structure represented by the general formula MmNi¿a?Mn¿b?Al¿c?Co¿d? (wherein Mm is mischmetal; and 4.1
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WO/2001/094050A2 |
A method and apparatus for reducing crop losses during slab and ingot rolling concerns the formation of a slab ingot having a specially configured or shaped butt end and optionally a head end as well. A special shape is formed by machini...
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WO/2001/087793A1 |
Process for manufacturing rice husk and straw ash having insulating properties anti-dusting and handling fluidity characteristics; this treatment without affecting any lightness, and without causing any increasing of carbon content compr...
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WO/2001/070431A1 |
This invention relates to exothermic and insulating sleeve mixes comprising (1) a sleeve composition comprising stabilitzed hollow aluminosilicate microspheres, and (2) a chemically reactive binder. Sleeves are formed from the sleeve mix...
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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/2001/044536A2 |
Described is a high quality sputtering target and method of manufacture which involves application of equal channel angular extrusion.
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WO/2001/041955A1 |
An article (1) suitable for contact with molten metal, comprising at least one wall (3) formed from refractory material, the wall including a region (5) having a thermal conductivity which is lower than that of the refractory material. T...
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WO/2001/015833A2 |
The invention relates to an exothermic sleeve composition comprising (a) an oxidizable metal where the oxidizable metal comprises fine aluminum as the major component, and (b) an oxidizing agent capable of generating an exothermic reacti...
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WO/2001/010584A1 |
A distributor device for use in aluminium casting includes a rigid, substantially bowl-shaped receptacle (2) of a refractory material having a base member (4) and a peripheral wall (6) that extends upwards from the base. The receptacle h...
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WO/2000/073236A2 |
The invention relates to an exothermic feeder, containing aluminum and magnesium, at least one oxidizing agent, a feeder containing SiO¿2? and an alkali silicate that serves as a binder. The inventive feeder is characterized in that it ...
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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...
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WO/2000/041827A1 |
The invention relates to a method for producing ingot molds (1) for pig casting installations used for producing pigs. According to the invention, mill bars (2) comprised of copper are used as starting material. Said mill bars are, in pa...
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WO/2000/036171A1 |
A hydrogen storage alloy of AB¿5? type having a crystal structure of CaCu¿5? type which is represented by a general formula: MmNi¿a?Mn¿b?Al¿c?Co¿d? wherein Mm is a mish metal, 4.0$m(f)a$m(F)4.3, 0.25$m(F)b$m(F)0.4, 0.25$m(F)c$m(F)0...
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WO/2000/013818A1 |
A foundry binder addressing the problems of reduced flowability leading to reduced strength and providing prolonged benchlife leading to higher tensile strength is produced from (a) an epoxy resin, (b) an acrylated polyisocyanate, (c) an...
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WO/1999/049093A1 |
A steel material which is manufactured in a non-powder metallurgical way, comprising production of ingots or castings from a melt, consists of an alloy having the following chemical composition in weight-%: Carbon: 2.0-4.3 %, Silicon: 0....
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WO/1998/036860A1 |
The invention relates to a thixocasting method for producing, by shaping, bodies on a metallic basis by first producing the input material and then shaping said material after reheating it to a semi-solid state. According to said method,...
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WO/1998/003284A1 |
The couplings and elements for hot topping and supply, which can be of the isolating or exothermal type, are obtained by blowing or manual casting of a formulation which comprises hollow microspheres of aluminium silicate having an alumi...
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WO/1997/021510A1 |
An apparatus (10) for casting metal ingots comprises a series of ingot moulds (12) mounted along an endless conveyor (11) which is arranged to be driven around spaced-apart rotatable members (15) and (17). A molten metal supplying device...
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WO/1996/011171A1 |
The invention relates to a granular bulk material of inorganic matrix granules with a porous grain structure in which the surfaces of the grain structure have a high-temperature-resistant coating formed by the coagulation of a colloidal ...
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WO/1994/023865A1 |
A mould for metal casting contains a bonded refractory composition comprising hollow alumina-containing microspheres in which the alumina content is at least 40 % by weight. The mould may be an ingot mould and the bonded refractory compo...
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WO/1993/022088A1 |
A method of casting an article in a thermosetting material utilising a mould (M1) having a casting cavity (1a_) corresponding to the configuration of the item to be cast, and a reservoir cavity (6, 7) communicating with the casting cavit...
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WO/1992/021461A1 |
A pouring pad (18) is provided for use in a tundish (10) during sequence continuous casting. The pouring pad (18) has a plurality of concentric primary ridge portions (23, 24) adjacent to the location of impact of a pouring stream from a...
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WO/1992/013661A1 |
The invention concerns a casting powder for use with steels, or with iron, nickel or cobalt alloys, with high oxide purity grade requirements, in continuous or monoblock casting processes, the main components of the casting powder being ...
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WO/1991/003338A1 |
The invention relates to a process and a device for casting metal rods or the like in bag casting using an ingot mould (1) which sinks into a liquid bath (5) as it is being filled with the casting metal. The ingot mould pipe (1) is fille...
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WO/1990/007995A1 |
The mould frame comprises at least one rigid transversal structural element (37) placed in a zone essentially remote from the ends of the frame. The transversal element (37) comprises two terminal parts (37a, 37b) between which are place...
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WO/1990/007998A1 |
This device (27) for suspending an upper spacer (20) is carried by a longitudinal beam (40) for clamping the walls (25) of the mould (5), whereby each wall (25) consists of a support frame (30) and a graphite block (31); the spacer (20) ...
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WO/1990/008000A1 |
The lower structure of the mould comprises an intermediate beam (26) freely borne by the frame (83) whose upper surface opposite the surface resting on the frame (3) carries the lower spacer (4) which is mounted by clamps (37) onto the b...
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WO/1990/007999A1 |
The spacer comprises a body (20) made from a single, hollow metallic part having a U-shaped cross section. The concave part of the cross section is directed towards the rear and the front side (20a) of the hollow body corresponding to th...
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WO/1990/007996A1 |
The method is implemented in a mould comprising two side walls (25) consisting each of a support (30) and of a graphite block (31), as well as a plurality of struts of which an upper strut (20) is interleaved between the blocks (31); the...
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WO/1990/004322A2 |
This invention relates to a heat-resistant composition which exhibits excellent resistance to both heat and abrasion after being cured and which is composed of a powdery mixture comprising at least 20 % by weight of zirconium oxide, 1 to...
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WO/1988/008343A1 |
The method consists in that a slag bath (2) is prepared in a forming sleeve (1) which serves as the first layer of the bimetallic article and then the metal of the second layer of the bimetallic article is built up on the sleeve (1) by m...
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WO/1988/001653A1 |
A crystallizer comprises a copper sleeve (1) having an upper enlarged section (2) and a lower shaping section (3) and a steel casing (4) mounted coaxially to the copper sleeve (1) and forming, together with the latter, a cooling chamber ...
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WO/1988/001210A1 |
A casting powder for use in ingot steel production through bottom pour process. The powder combines the crucial properties of existing bottom pour fluxes and hot topping compounds into a single, easily dispensed mixture. The present inve...
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WO/1985/003019A1 |
Method and apparatus for producing a fine-grain ingot. A feedstock stick (18) is melted to produce a series of fully molten drops or a stream, which falls on the upper surface of an ingot being formed (18), to cover a portion thereof whi...
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WO/1984/002668A1 |
The device is comprised of an ingot mould (1), made of copper, formed by two half chills (2) of which at least one comprises a plurality of cavities (10) of the ingots to be cast, which cavities communicate through channels (11, 12) and ...
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WO/1982/003997A1 |
An ingot mold (10) provided with means (34) affording stress relief thereto for the ingot pouring operation, while maintaining the mold (10) in condition to aid in preventing metal leakage therefrom during the ingot pouring operation and...
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WO/1981/001971A1 |
An improved self drying aluminium-containing composition in which drying is initiated by an alkaline substance is obtained by substituting an alkali metal nitrite for the alkali metal nitrate conventionally added to such a composition. T...
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WO/1981/001810A1 |
A process and apparatus for casting semi-finished metal products in which a molten-metal-proof-plunger (27, 100, 161, 163) is disposed near the top of a cavity (26, 162, 164) in a permanent mold (20, 150),a reservoir (36, 203) of molten ...
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WO/1981/001377A1 |
The ingot mould comprises a hot-top positioned inside the upper part of the mould and comprising an inner wall formed by at least one plate of a material capable of withstanding contact with a molten metal poured into the ingot mould, wi...
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WO/1980/002811A1 |
Sound castings (1), free from aluminium pick-up, are produced in moulds (2) in which are located at places where it is desirable to promote directional solidification lining pads (9) made from a composition which comprises particulate re...
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WO/1980/002658A1 |
A cavity in a body of particulate moulding material has at least one rib-like formation for gripping an object received in the cavity. In the case of a metal casting mould a riser sleeve (1) is inserted into a cavity (9) in the top part ...
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WO/1979/000596A1 |
A method of casting metal comprising teeming molten metal into an ingot mould with a hot-top, the hot-top having a metal inner wall which is thin compared to the thickness of the mould wall and is surrounded by a heat insulating barrier,...
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