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Class 164/122.1 - Unidirectional solidification


Subclass of Class 164 - Metal founding
Definition: Process wherein an unidirectional temperature gradient is
No. of patents: 238
Last issue date: 05/29/2012


1            
NumberTitleIssue Date
8186418Unidirectional solidification process and apparatus therefor
An apparatus and method for casting an alloy using a unidirectional casting technique. The apparatus includes a mold adapted to contain a molten quantity of an alloy, a primary heating zone adapted to heat the mold and the molten alloy therein to a temperature above...
05/29/2012
8171981Method of casting metal articles
During casting of metal articles, a mold is moved into a body or bath of molten metal. The mold is moved into a container which contains a portion of the body of molten metal. Heat is transferred at a first rate from the mold to a first portion of the body of molten...
05/08/2012
8087446Method 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. The precision pouring system is driven by a pressure differential. ...
01/03/2012
8079400Process for casting columnar grain airfoil with preferential primary orientation
A molding process utilizes a seed with a columnar grain structure for defining a desired grain structure in a completed casting. The seed is received within a seed cavity of a mold. The molten material adopts the orientation of the columns defined within the seed du...
12/20/2011
8056608Method of mitigating against thermal contraction induced cracking during casting of a super Ni alloy
A method of mitigating against thermal contraction induced cracking during casting of a super Ni alloy, the method comprising: pouring liquid alloy into a mould such that liquid alloy is present in a feeder of said mould; and inducing an electrical current in alloy ...
11/15/2011
7958928Method and apparatus for casting metal articles
To cast one or more metal articles, a mold structure is positioned on a support with an anchor extending upward from the support into the mold structure. The mold structure and anchor are interconnected by a retainer which extends through a portion of the mold struc...
06/14/2011
7896060Casting furnace
An apparatus and process are provided for casting liquid metals into molds in a casting furnace comprising a controlled environment melt chamber and a mold lock chamber. A mold is supplied to the controlled environment melt chamber for a pour, and removed from the s...
03/01/2011
7854252Method of producing a castable high temperature aluminum alloy by controlled solidification
A castable high temperature aluminum alloy is cast by controlled solidification that combines composition design and solidification rate control to synergistically enhance the performance and versatility of the castable aluminum alloy for a wide range of elevated te...
12/21/2010
7762309Integral single crystal/columnar grained component and method of casting the same
A hybrid cast component (10) including both a columnar grained region (12) and a single crystal region (14) integrally formed and joined along a metallurgical boundary (32) in a single casting operation without the need for any weld or br...
07/27/2010
7584778Method of producing a castable high temperature aluminum alloy by controlled solidification
A castable high temperature aluminum alloy is cast by controlled solidification that combines composition design and solidification rate control to synergistically enhance the performance and versatility of the castable aluminum alloy for a wide range of elevated te...
09/08/2009
7448428Method of casting
A Method of casting includes providing a mold having one or more article mold cavities. The mold is moved into a furnace. While the mold is in the furnace, the mold is filled with molten metal. After the mold has been removed from the furnace, a heater is positioned...
11/11/2008
7383873Casting furnace
An apparatus and process are provided for casting liquid metals into molds in a casting furnace comprising a controlled environment melt chamber and a mold lock chamber. A mold is supplied to the controlled environment melt chamber for a pour, and removed from the s...
06/10/2008
7377305Method 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. ...
05/27/2008
7377304Method of unidirectional solidification of castings and associated apparatus
Molten metal is injected uniformly into a horizontal mold from a feed chamber in a horizontal or vertical direction at a controlled rate, directly on top of the metal already within the mold. A cooling medium is applied to the bottom surface of the mold, with the ty...
05/27/2008
7331374Method and apparatus for assisting removal of sand moldings from castings
Disclosed is a method for dislodging a mold from a casting formed within the mold. The mold may be removed from the casting by scoring the mold and applying a force sufficient to cause the mold to fracture and break into pieces. Additionally, the mold may be fractur...
02/19/2008
7322396Weld 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
7278460Ceramic 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
7275582Methods and apparatus for heat treatment and sand removal for castings
A system and method for heat treating castings and removing sand cores therefrom. The castings are initially located in indexed positions with their x, y, and z coordinates known. The castings are passed through a heat treatment station typically having a series of ...
10/02/2007
7273085Method of deoxidation casting and deoxidation casting machine
Deoxidation casting machine, in which a deoxidizing compound reacts with a molten metal so as to deoxidize an oxide film formed on a surface of the molten metal. The machine includes a casting die having a molten metal inlet, a cavity into which a molten metal is po...
09/25/2007
7270166Fugitive 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
7264038Method of unidirectional solidification of castings and associated apparatus
Molten metal is injected uniformly into a horizontal mold from a feed chamber in a horizontal direction at a controlled rate, directly on top of the metal already within the mold. A cooling medium is applied to the bottom surface of the mold, with the type and flow ...
09/04/2007
7258158Increasing stability of silica-bearing material
Method and apparatus for prolonging the stability (working life) of a ceramic slurry and other aqueous mixture or dispersion containing a liquid silica-bearing or other component as well as the raw liquid silica-bearing component in ambient air over time by providin...
08/21/2007
7248790Heating device for vehicle
A heating device for a vehicle is provided with a radiation-heat generating unit for generating radiation heat, a first light-distributing unit for converting irradiation directions of the radiation heat into a substantial single irradiation direction, and a second ...
07/24/2007
7234506Ceramic 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
7204296Method of removing a fugitive pattern from a mold
A method is provided for removing a fugitive pattern, such as wax or other meltable pattern material, residing inside of a refractory mold by discharging condensable vapor such as steam inside the mold to contact and melt the pattern while an exterior of the mold is...
04/17/2007
7201212Investment 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
7195479Hot liner insertion/removal fixture
A fixture (30) adapted to permit the heated exchange of a liner (14) from an operating vertical furnace (10). The fixture is adapted to secure to the base of the liner (14) to both unlock and lower the heated liner, such as a silicon carb...
03/27/2007
7152659Component casting
A deflector element is provided, in order to improve temperature interface control with respect to directional solidification of a component casting. This deflector element is formed during the mould making process and is arranged to be positioned with respect to a ...
12/26/2006
7144220Investment casting
An article may be manufactured by providing a reticulate core element in a mold shell having a shape at least partially corresponding to a shape of the article. The molten metallic material is introduced to the shell so as to at least partially infiltrate into the r...
12/05/2006
7093645Ceramic 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...
08/22/2006
7073562Method 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
7017646Method 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
7014707Apparatus and process for producing crystal article, and thermocouple used therein
In order to prevent a region of supercooling from increasing and to effect uniform crystal growth, the generation of latent heat is detected from changes in temperature of a crucible or a heater or from changes in heat flow rate and also the position of solid-liquid...
03/21/2006
7000678Electromagnetic continuous casting apparatus for materials possessing high melting temperature and low electric conductance
Disclosed is an electromagnetic continuous casting apparatus for a material having a low electric conductivity. The casting apparatus includes a crucible having a vertical axis. The crucible comprises an upper hot crucible and a lower cold crucible. The crucible is ...
02/21/2006
6969240Integral turbine composed of a cast single crystal blade ring diffusion bonded to a high strength disk
A lightweight high temperature bladed turbine disk intended for use in gas turbine engines. The bladed disk comprises a cast integral ring of single crystal airfoils with the primary and secondary crystallographic orientation being the same for each airfoil. Low-ang...
11/29/2005
6957489Method for producing a light-alloy bearing bush with a rough external surface
The aim of the invention is to produce a light-alloy bearing bush with a rough external surface. To achieve this, particles, which are subsequently surrounded in part by the molten metal, are applied to the surface of the casting mould. When the bearing bush is rele...
10/25/2005
6948548Apparatus and method for casting metal
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 spruce (7) form...
09/27/2005
6949199Heat-transfer-stamp process for thermal imprint lithography
A method of performing thermal imprint lithography of a surface of a thermoplastic layer-coated workpiece for forming a pattern therein comprises pre-heating the workpiece to a pre-selected high temperature prior to inserting the workpiece in a stamping/imprinting t...
09/27/2005
6932938Method and apparatus for containing and ejecting a thixotropic metal slurry
A container system including a vessel for holding a thixotropic semi-solid aluminum alloy slurry during its processing as a billet and an ejection system for cleanly discharging the processed thixotropic semi-solid aluminum billet. The crucible is preferably formed ...
08/23/2005
6932144Method for casting objects with an improved riser arrangement
A method of casting an object, usually a railroad wheel, is provided. A graphite mold having a drag section and a cope section requires a plurality of riser openings in the cope section to ensure proper dimensional accuracy of the cast railroad wheel by allowing mol...
08/23/2005
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