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| Number | Title | Issue Date |
| 7810547 | Single crystal seed A single crystal seed for use in casting a single crystal article, consisting essentially of, in weight %, about 5.0% to about 40.0% Mo, up to 0.1% C and balance essentially Ni wherein the seed is disposed in a casting mold for casting a single crystal article. ... | 10/12/2010 |
| 7779889 | Process for manufacturing single-crystal seeds simultaneously with the casting of single-crystal parts A process for manufacturing at least one single-crystal seed that can be used as a starter seed in the manufacture of a single-crystal high-pressure turbine nozzle, with at least one vane between two platforms, by metal casting, is disclosed. The process includes pr... | 08/24/2010 |
| 7575038 | Single crystal seed A single crystal seed for use in casting a single crystal article, consisting essentially of, in weight %, about 5.0% to about 40.0% Mo, up to 0.1% C and balance essentially Ni. ... | 08/18/2009 |
| 7338259 | High modulus metallic component for high vibratory operation A high modulus component, such as an aircraft engine turbine blade, is formed from a base metal that has a high modulus crystallographic orientation that is aligned with the primary, i.e. radial, direction of the turbine blade. The base metal is Ni, Fe, Ti, Co, Al, ... | 03/04/2008 |
| 7322396 | Weld closure of through-holes in a nickel-base superalloy hollow airfoil A hollow airfoil is fabricated by providing a casting mold assembly including a casting mold, a casting core, and a standoff spacer that prevents the casting core from contacting the casting mold to define a casting space. A first nickel-base superalloy is cast into... | 01/29/2008 |
| 7294199 | Nitride single crystal and producing method thereof A method of producing a nitride single crystal includes the step of forming a material transport medium layer containing a compound of rare earth element on a surface of a nitride crystal, and the step of making a seed crystal in contact with the material transport ... | 11/13/2007 |
| 7278460 | Ceramic casting core and method A ceramic core for use in casting an article such as for example an airfoil, wherein the ceramic core has a pocket located at or near a region of the core that is otherwise associated with occurrence of a localized casting defect in the cast article. A covering is d... | 10/09/2007 |
| 7270166 | Fugitive pattern assembly and method A fugitive pattern assembly is made by preforming one or more fugitive patterns of an article to be cast, placing the preformed patterns in an injection die, and injecting fluid gating material into the die to form gating connected to the patterns. The fugitive patt... | 09/18/2007 |
| 7250088 | Directionally solidified columnar grained article and apparatus for manufacture thereof A method and an apparatus for manufacturing a directionally solidified columnar grained article with a reduced amount of secondary misorientation of the columnar grains. The method employs a casting assembly comprising a mold with a cavity, a selector section at a l... | 07/31/2007 |
| 7234506 | Ceramic casting core and method A ceramic core for use in casting an article such as for example an airfoil, wherein the ceramic core has a pocket located at or near a region of the core that is otherwise associated with occurrence of a localized casting defect in the cast article. A covering is d... | 06/26/2007 |
| 7225857 | Apparatus for manufacture of directionally solidified columnar grained article thereof An apparatus for manufacturing a directionally solidified columnar grained article with a reduced amount of secondary misorientation of the columnar grains. The apparatus includes a casting assembly comprising a mold with a cavity, a selector section at a lower end ... | 06/05/2007 |
| 7204294 | Casting method In order to more effectively utilise seed crystals 35, 55 to achieve a single crystal grain orientation for a component without the problems of utilising a helix constriction previously necessary to avoid epitaxial grain competition and growth. The present in... | 04/17/2007 |
| 7201212 | Investment casting A method and apparatus are used to cast a number of elements such as turbine engine blades. The blades have an airfoil and a root for securing the blade to a disk. A number of mold sections each have internal surfaces for forming an associated at least one of the el... | 04/10/2007 |
| 7169242 | Method of removing casting defects A method for removing casting defects (5) from an article (1) with an oriented microstructure can include locating at least one casting defect (5) and melting the casting defect (5) locally by a heat source (7) to a depth at least ... | 01/30/2007 |
| 7073562 | Method for producing a monocrystalline component, having a complex moulded structure The invention relates to a method for producing a monocrystalline component, having a complex moulded structure with different structure parts, from a molten metal. According to the method, said molten metal is located in a negative mould, corresponding to the mould... | 07/11/2006 |
| 7017646 | Method for casting a directionally solidified article A method of casting a directionally solidified (DS) or single crystal (SX) article with a casting furnace having a heating chamber (4), a cooling chamber (5), a separating baffle (3) between the both chambers includes a first step in which the s... | 03/28/2006 |
| 7011141 | Apparatus and method for producing single crystal metallic objects A mold is provided for enabling casting of single crystal metallic articles including a part-defining cavity, a sorter passage positioned vertically beneath and in fluid communication with the part-defining cavity, and a seed cavity positioned vertically beneath and... | 03/14/2006 |
| 6932145 | Method and apparatus for production of a cast component A system for producing cast components from molten metal. One form of the present invention includes a system for the precision pouring of molten metal within a casting mold. ... | 08/23/2005 |
| 6896030 | Directional solidification method and apparatus Apparatus and method for DS casting using one or more thermal baffle members positionable at a lower open end of a directional solidification casting furnace by movement of a ram on which a mold to be cast is moved relative to the casting furnace. A unique thermal b... | 05/24/2005 |
| 6889747 | Fluidized bed with baffle An apparatus for use in casting a metal article includes a furnace assembly and a container which holds a fluidized bed. A mold support is movable relative to the furnace assembly to move a mold from the furnace assembly into the fluidized bed. A bame is disposed be... | 05/10/2005 |
| 6868893 | Method and apparatus for directionally solidified casting Provided is a directional solidification casting apparatus capable of heightening a cooling effect when molten material poured in a mold is directionally solidified. A mold (20) disposed around a predetermined area is drawn out from a heating chamber (10 | 03/22/2005 |
| 6837299 | Heating to control solidification of cast structure A method for the production of a cast component comprising the steps of: 1) providing a molten metal mass in a casting mold and exposing the casting mold to a cooling environment thereby creating a solidification interface between ... | 01/04/2005 |
| 6827124 | Method and apparatus for use during casting A baffle includes a base and a seal having flexible segments which engage a mold structure. The base of the baffle may have a noncircular opening in which article mold portions of the mold structure are disposed. The baffle may be connected with the furnace assembly... | 12/07/2004 |
| 6715534 | Method and apparatus for producing directionally solidified castings The present invention relates to an apparatus for metal casting and can be used in producing castings with directional and single crystal structure. The apparatus comprises a vacuum chamber inside which there is disposed an induction melting furnace, a mold preheati... | 04/06/2004 |
| 6712904 | Device for producing single crystals A device is made available for producing monocrystals, for example large-diameter gallium arsenide monocrystals, that has a cylindrical heating appliance with a floor heater (2) and a cover heater (3). The heating surfaces of the floor and the cover he... | 03/30/2004 |
| 6698493 | Apparatus and method for casting a metal article As a mold containing molten metal is lowered from a heating chamber, a baffle extends around the mold. Force is transmitted from the mold to an inner section of the baffle to release connectors between the inner section of the baffle and an outer section ... | 03/02/2004 |
| 6651728 | Casting articles A method of casting metal articles includes providing an array of article molds. The article molds are filled with molten metal. The molten metal is solidified in the article molds. During solidification of the molten metal, a plurality of solidification ... | 11/25/2003 |
| 6640876 | Method and apparatus for manufacturing copper and/or copper alloy ingot having no shrinkage cavity and having smooth surface without wrinkles A method and apparatus for manufacturing copper and/or copper alloy ingots having no shrinkage cavities and having smooth surfaces without wrinkles are provided. The apparatus comprises a bottom-casting type melting furnace and a heating furnace for heati... | 11/04/2003 |
| 6598657 | Mould support arrangement A mold support (110) is disclosed for supporting a plurality of molds (109) in a casting apparatus having a first zone for introducing molten material into the molds and a second zone in which the material in the molds can cool. The mold support (110) is ... | 07/29/2003 |
| 6576831 | Multicrystalline silicon having a low proportion of active grain borders Directionally solidified, multicrystalline silicon having a low proportion of electrically active grain borders, its manufacturing and utilisation, as well as solar cells comprising said silicon and a method of manufacturing said cells.... | 06/10/2003 |
| 6500283 | Method of improving environmental resistance of investment cast superalloy articles A method for promoting the environmental resistance of nickel, iron and cobalt-base superalloys of the type alloyed to develop a protective oxide scale. The method entails a technique for removing sulfur during or subsequent to the casting operation. The ... | 12/31/2002 |
| 6497272 | Single crystal casting mold A mold for single crystal casting of molten metallic material is provided having a metallic seed crystal with a passage in an end thereof and an end of a fugitive connector member inserted in the passage. Another end of the connector member is connected t... | 12/24/2002 |
| 6446701 | Apparatus for unidirectional solidification of compounds An improved apparatus for producing unidirectionally solidified components over wide range of shapes and sizes from the smallest aero-engine turbine parts to the largest industrial gas turbine parts with improved quality and productivity where a chill blo... | 09/10/2002 |
| 6311760 | Method and apparatus for casting directionally solidified article A method of casting a directionally solidified article such as a component of a gas or steam turbine. The casting is performed in a casting furnace comprising a heating chamber, a liquid cooling bath as a cooling chamber and a shell mold. During casting, ... | 11/06/2001 |
| 6263951 | Horizontal rotating directional solidification Method and apparatus for directional solidification of molten metal using a general horizontally oriented mold initially positioned in a casting furnace. The mold is filled with molten metal through a mold pour cup located on an upper region of the mold a... | 07/24/2001 |
| 6257311 | Horizontal directional solidification Method and apparatus for directional solidification of molten metal employs a generally horizontally oriented mold initially positioned in a casting furnace. The mold residing on a chill is filled with molten metal through a mold pour cup located on an up... | 07/10/2001 |
| 6213192 | Large structural, thin-wall castings made of metals subject to hot tearing, and their fabrication An article, such as a gas turbine engine mixer, is made by providing a mold structure defining a thin-walled, hollow article, and a base metal that is subject to hot tear cracking when cast in a generally equiaxed polycrystalline form, such as Rene' 108 a... | 04/10/2001 |
| 6192969 | Casting of high purity oxygen free copper A method and apparatus are provided for making high purity and preferably oxygen free substantially void free and inclusion free copper castings such as billets from high purity copper. The castings are particularly useful to make sputtering targets used ... | 02/27/2001 |
| 6035924 | Method of casting a metal article A layer of hollow spheres is floated on a fluidized bed beneath a furnace. A mold containing molten metal is heated in the furnace to melt the molten metal. The mold is then moved from the furnace through the layer of hollow spheres into the fluidized bed... | 03/14/2000 |
| 5988262 | Sputtering target of single crystal aluminum alloy and method for producing the same A sputtering target of a single crystal aluminum alloy which has a uniform concentration distribution of an added metal element and a controlled crystal orientation is prepared using a continuous casting apparatus equipped with a starting rod by solidifyi... | 11/23/1999 |
