| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 164023000 | Composite, plural part or multilayered mold | 58 |
| 20080202718 | Process For Producing A Lost Model, And Core Introduced Therein - The invention relates to a method for the production of a pattern for precision casting representation of turbine component comprising at least one cavity, whereby the prepared pattern comprises at least one core and an outer contour pattern, at least partly enclosing the core and at least partly defining the outer contour of the turbine component. The core is made from a hardening core material, which hardens during the course of the method and the outer contour pattern is made from a combustible or fusible material. The outer contour model is first produced with at least one cavity corresponding to the at least one cavity of the turbine component and subsequently, in order to form the at least one care, the hardening core material is introduced into the at least one cavity and hardened. | 08-28-2008 |
| 20100025001 | METHODS FOR FABRICATING GAS TURBINE COMPONENTS USING AN INTEGRATED DISPOSABLE CORE AND SHELL DIE - Methods involving providing an integrated disposable core and shell die of an authentic gas turbine component, inserting at least one through-rod through the integrated disposable core and shell die, casting an integrated core and shell mold inside of the integrated disposable core and shell die, removing the integrated disposable core and shell die to obtain the integrated core and shell casting mold having the at least one through-rod disposed therein, casting an authentic gas turbine component replica using the integrated core and shell casting mold, and removing the integrated core and shell casting mold and the at least one through-rod to obtain the authentic gas turbine component replica. | 02-04-2010 |
| 20100116452 | Investment casting cores and methods - A method involves forming a core assembly. The forming includes molding a first ceramic core over a first refractory metal core to form a core subassembly. The subassembly is assembled to a second ceramic core. | 05-13-2010 |
| 20100193150 | CASTING METHOD - In the casting of a single crystal component, such as a turbine blade, by the lost wax casting technique, one or more ceramic pieces are positioned on a wax pattern at locations corresponding to parts of the cast component where relatively quick solidification of molten metal may occur during casting. A coating is subsequently formed around the wax pattern to define a mould, whereupon the wax is removed to leave the one or more ceramic pieces within the formed mould. | 08-05-2010 |
| 20110073269 | CATALYSTS COMPRISING METHANE SULFONIC ACID FOR THE ACID HARDENING METHOD - The invention relates to a method for producing cores and molds for the foundry industry, wherein—a flowable fire-resistant primary molding material is provided. An acid is applied to the flowable fire resistant primary molding material, thus obtaining an acid-coated fire-resistant primary molding material. A binder that can be cured by acid is applied to the acid-coated fire resistant primary molding material, thus obtaining a fire-resistant primary molding material coated with a binder. The fire-resistant primary molding material coated with a binder is molded into a molded body, and-the molded body is cured, wherein the acid is a mixture of methane sulfonic acid and at least one further sulfur-free acid. The invention further relates to a mold material mixture as it is used in said method. With the method or the mold material mixture, casting molds can be produced having reduced emission of harmful compounds during casting. | 03-31-2011 |
| 20110315336 | Contoured Metallic Casting Core - A method for manufacturing an investment casting core uses a metallic blank having a thickness between parallel first and second faces less than a width and length transverse thereto. The blank is locally thinned from at least one of the first and second faces. The local thinning forms a taper on a leading portion of the RMC. The blank is through-cut across the thickness. The blank is inserted into the leading portion into a slot in a pre-formed ceramic core. | 12-29-2011 |
| 20110315337 | Investment Casting Cores and Methods - A method involves forming a core assembly. The forming includes deforming a wire, the deforming including increasing a transverse linear dimension along at least one portion of the wire. The wire is assembled to a ceramic core | 12-29-2011 |
| 20120138252 | Self Supporting Core-In-A-Core for Casting - A core-in-a-core casting method and hybrid core ( | 06-07-2012 |
| 20120175075 | Preformed ceramic seed well for single crystal starter seed - A method of creating an article from investment casting includes forming a ceramic seed well, heating the ceramic seed well to form a hardened ceramic seed well, attaching a meltable pattern to the hardened ceramic seed well, coating the hardened ceramic seed well and the meltable pattern with hardenable ceramic material, heating the hardenable ceramic material to melt the meltable pattern, removing the meltable pattern from the hardenable ceramic material, firing the hardenable ceramic material to form a ceramic mold having a cavity, placing a seed within the hardened ceramic seed well, and pouring molten metal into the hardened ceramic seed well and the cavity. The cavity of the ceramic mold is in communication with the hardened ceramic seed well. | 07-12-2012 |
| 20120186768 | METHODS FOR FORMING FAUCETS AND FIXTURES - This invention provides methods for forming stainless steel, single-piece, multi-chambered water faucets and fixtures with a single one-body construction. A variety of stainless steel products can be formed with a main body having an internal hollow region and a plurality of dividing chambers. The main body may be constructed using high temperature resistant ceramic cores in combination with a lost wax investment casting process. The stainless steel products formed from a single piece construction can eliminate the need for additional time-consuming manufacturing steps, such as parts welding, screw assembly, or precision press fitting. In addition, water faucets and fixtures can be provided that are substantially lead-free, non-verdigris, and non-toxic in compliance with environmental regulations and lead/toxic limits. | 07-26-2012 |
| 20130160961 | SUBSURFACE CHILLS TO IMPROVE RAILCAR KNUCKLE FORMATION - A method for manufacturing a railcar coupler knuckle includes, before casting, positioning an external chill within a cope mold portion and a drag mold portion offset from and adjacent internal walls of a pulling face and a throat of the cope and drag mold portions, thus producing a casting with reduced micro-shrinkage in at least the throat, a high-stress section of the casting. Use of subsurface chills produces an improved surface with fewer inclusions when compared to an equivalent surface produced in a process without use of a subsurface chill. The external chill may be a cone chill of a larger size to improve cooling and solidification at and below the surface. The external chill may also be a cylindrical and/or oblong chill with a tapered design that may correspond to the internal walls of the cope and drag mold portions between the pulling face and the throat. | 06-27-2013 |
| 20130160962 | MAIN BODY CORE SET ASSEMBLY AND CORE BOX FOR A COUPLER BODY - A main body core box assembly for creating coupler head cores which are attachable to various shank cores includes a main body core box including two halves, each half including a pattern configured to form the outer walls of a first head core having a first shank core. A plug is insertable into an end of respective patterns to form a second, alternative head core having a first half of a connection joint attachable to a second shank core that includes a second half of the connection joint, the second shank core being different than the first shank core. The first half of the connection joint may be a male connector, where the plug includes a recess having an angled surface to create a notch on the male connector. The second half of the connection joint may be a female connector with a raised surface corresponding to the notch. | 06-27-2013 |
| 20130168035 | METHOD AND SYSTEM FOR MANUFACTURING RAILCAR COUPLER LOCKS - A casting assembly for manufacturing a lock of a railcar coupler includes drag and cope portions of a first mold that defines exterior surfaces of the lock, wherein the first mold comprises a first molding material. The casting assembly also includes a second mold formed of a second molding material. The second mold defines a cavity with an interior surface that substantially complements an exterior surface of the first mold. A down sprue is formed in the second mold. A gating system is formed in the second mold that and is in fluid communication with the down sprue. An in-gate is formed in the second mold and is in fluid communication with the gating system and the first mold. | 07-04-2013 |
| 20130220569 | MOLD CORE FOR FORMING A MOLDING TOOL - A mold core package for forming a molding tool includes a plurality of stacked particulate layers having a binding agent. The plurality of stacked particulate layers form sacrificial walls. An elongate sacrificial displacement line extends through the mold core package adjacent a forming surface of the mold core package. A mold cavity is defined by the stacked particulate layers. | 08-29-2013 |
| 20140020859 | TIRE VULCANIZING MOLD MANUFACTURING METHOD, AND TIRE VULCANIZING MOLD - A tire vulcanizing mold manufacturing method for manufacturing of a mold including a vent mechanism, and a tire vulcanizing mold manufactured using such method are disclosed. Blades each with anchor portions are mounted on a plaster mold with only the anchor portions embedded in the plaster mold. A portion of each blade mounted on the plaster mold is covered with a cover layer made of a destructible fire-resistant material. Molten metal is poured over a surface of the plaster mold to cast a mold to which the shape of the surface is transferred and in which each blade is buried. The anchor portions protruding from the surface of the mold are removed, and the cover layer is removed to form a slit around the blade. A vent opening forming member is removed to form a vent opening. The slit and the vent opening communicate with each other. | 01-23-2014 |
| 20140110075 | ARRANGEMENT AND METHOD FOR MOULDS FOR METAL CASTING - An arrangement and method in a ram-up machine ( | 04-24-2014 |
| 20140202650 | QUASI SELF-DESTRUCTIVE CORE FOR INVESTMENT CASTING - A composite core for forming a passage in an investment casting mold is provided including a generally hollow structural element. The structural element is configured to deform when a force is applied to an end thereof. A rigid shell element is formed about the structural element. The shell element extends beyond both an interior surface and an exterior surface of the structural element. The shell element is configured to shatter when the structural element deforms. | 07-24-2014 |
| 20140284014 | AEROSPACE SAND CASTING SUPPORT - A component casting apparatus includes a mold to receive a molten solid for casting a component. The mold includes a first sacrificial layer to define a housing of the component and a second sacrificial layer to form at least one core passage of the component in response to contact from the molten solid. The component casting apparatus further includes a trusset disposed against an outer surface of the second sacrificial layer and formed from metal to support the second sacrificial layer. | 09-25-2014 |
| 20150306657 | CERAMIC CASTING CORE MADE BY ADDITIVE MANUFACTURING - A method of making a ceramic casting core involves using additive manufacturing to form a 3D ceramic casting core that includes an outer core body surface layer that exhibits reduced chemical reactivity with the molten metal or alloy being cast, wherein the ceramic body and the outer core body layer each comprises a layer-on-layer structure in a build direction of the ceramic casting core resulting from the additive manufacturing process, such as 3D printing. | 10-29-2015 |
| 20150352634 | METHOD FOR MANUFACTURING A COMPONENT USING THE LOST-WAX CASTING METHOD WITH DIRECTED COOLING - A method for manufacturing a metal component using the lost-wax casting method is provided. The component is made of nickel alloy, with a columnar or monocrystalline structure with at least one cavity of elongate shape. The method includes creating a wax model of the component with a ceramic core corresponding to said cavity, the ceramic core comprising a first land for holding at one longitudinal end and a second land for holding at the opposite end, creating a shell mold around the model, the mold comprising a base and the first land of the core being at the same end as the base, placing the mold in a furnace, with the base standing on the sole of the furnace, pouring the said molten alloy into the shell mold, solidifying the poured metal by gradual cooling from the sole in a direction of propagation. The core in one example is secured to the shell mold by an anchor providing anchorage between the first land of the core and the wall of the mold, the second land of the core being retained in the mold by a retainer that slides on the wall of the mold. | 12-10-2015 |
| 20160001354 | GAS TURBINE ENGINE COMPONENT MANUFACTURING METHOD AND CORE FOR MAKING SAME - A method of manufacturing a gas turbine engine component includes providing a core having a brittle feature, supporting the feature with a first meltable material, arranging the core with the first meltable material in a first mold, and surrounding the core and the first meltable material with a second meltable material to provide a component shape. The method also includes coating the second meltable material with a refractory material to produce a second mold, removing the first and second meltable material, and casting a component in the second mold. | 01-07-2016 |
| 20160074931 | CORE MAKING METHOD AND APPARATUS - A ceramic mixture is shaped to form a ceramic core having a configuration which corresponds to the configuration of a cavity in an airfoil. The ceramic core is positioned between a plurality of arrays of burners. Flames from the burners burn organic material contained in the ceramic core. During burning of the organic material, the core is upright with a longitudinal central axis of the core in a generally vertical orientation. The ceramic core may be dipped in a ceramic material after having performed the step of burning organic material and prior to additional heat treatment of the ceramic core. | 03-17-2016 |
| 20160101462 | PRECISION-CASTING CORE, PRECISION-CASTING CORE MANUFACTURING METHOD, AND PRECISION-CASTING MOLD - A coating layer including solely silicon alkoxide or mixed alkoxide of silicon alkoxide and aluminum alkoxide is formed on a surface of a sintered precision-casting core body mainly including silica particles so as to seal holes formed in the surface. As a result, it is possible to prevent the breakage of the core during casting. | 04-14-2016 |
| 20160114384 | PRECISION-CASTING CORE, PRECISION-CASTING CORE MANUFACTURING METHOD, AND PRECISION-CASTING MOLD - A precision-casting core body is formed by mixing and sintering silica particles and silica fume. The resistance of the mixture of silica fume decreases during heating injection molding, and hence the fluidity is improved by the addition of silica fume. As a result, since the fluidity is improved, it is possible to decrease an injection molding pressure when a core is manufactured. Further, the mixture can be applied to a thin compact and a complex compact with improved fluidity. | 04-28-2016 |
| 164024000 | Sequentially forming mold portions on same shaping member | 17 |
| 20090020254 | IN-PLACE COPE MOLDING FOR PRODUCTION OF CAST METAL COMPONENTS - In-Place Cope Molding or “IPCM,” is designed to reduce or eliminate certain inefficiencies present in traditional molding techniques during production of the cope half of a sand mold. IPCM allows the cope half of the mold to be produced on top of the drag half of the mold by use of a separation barrier which supports the sand above the mold cavity in the drag. This method reduces or eliminates parting line flash, and also avoids the need to turn over or otherwise handle the cope, allowing the cope to be made thinner than a traditional cope and allowing for lower material costs. | 01-22-2009 |
| 20090229780 | REFRACTORY METAL CORE - A cast metal article, such as a turbine engine component, is made by shaping a body of refractory metal particles to form a molded refractory metal article. The molded refractory metal article is sintered to form a refractory metal core. Both the refractory metal article and a setter block may be sintered at the same time. At least a portion of the refractory metal core is enclosed with wax. The wax is at least partially enclosed with a covering of mold material. The wax is removed from the mold material to form an article mold cavity. The article mold cavity is filled with molten metal which solidifies to form a cast metal article. The refractory metal core is removed from the cast metal article. | 09-17-2009 |
| 20090242160 | METHODS OF FORMING MODULATED CAPACITY SCROLLS - Methods of forming modulated capacity scroll compressors are provided, where at least two distinct mold shapes are formed of foam material and then joined together to form a mold assembly. The mold assembly defines one or more substantially horizontal features, such as a horizontally oriented fluid passage or a weight-reduction recess in a solid wall. In certain aspects, the mold assembly defines a junction between a portion of a horizontal fluid passage and a portion of a vertical fluid passage. A molten metal displaces the foam material of the mold assembly to solidify and form the scroll component. | 10-01-2009 |
| 20110114279 | Insulated Investment Casting Mold and Method of Making - An insulated investment casting shell mold is made by first mixing at least one refractory material with a slurry vehicle forming a prime coat slurry, and optionally mixing at least one refractory material with a slurry vehicle forming a backup slurry. The prime slurry is coated onto a fugitive pattern and optionally dried and/or stuccoed wherein the stucco has at least one refractory material. Optionally, at least one coat of the backup slurry is applied to the prime coated fugitive pattern and optionally dried and/or stuccoed after each coat of the backup slurry. The backup and stucco may be applied a plurality of times to obtain a desired shell wall thickness. An insulating slurry is formed by introducing gas into a slurry vehicle having at least one refractory material and containing a stabilizer and a foaming agent wherein gaseous bubbles become entrained therein forming an insulating slurry having closed porosity therein. The insulating slurry is coated onto at least one portion of the pattern after the prime coat and preferably at least a portion of the outermost layer of a backup coated pattern has the insulating slurry thereon. | 05-19-2011 |
| 20110315338 | SHELL MOLDS AND PROCESSES FOR FORMING SHELL MOLDS - Shell molds and processes for making the shell molds that exhibit high emissivity in the red and infrared regions. In this manner, thermal resistance within a gap formed between solidifying cast metal and the interior mold surface is decreased. In one embodiment, the facecoat region is formed from a slurry composition comprising an aluminum oxide, a green chromium oxide and a silicon dioxide. In another embodiment, the facecoat region is formed from a slurry composition including zirconium silicate and silica with stucco layer of alumina is included. | 12-29-2011 |
| 20140034262 | METHOD OF MANUFACTURING ROTOR SUCH AS IMPELLER OR TURBINE WHEEL - Disclosed is a method of manufacturing an impeller or a turbine wheel having a disk hub and an air foil. The method includes forming a mold for casting including a cavity of a shape corresponding to the rotor, arranging a core at a location corresponding to an inside of the rotor in the cavity of the mold for casting, injecting molten metal into the mold for casting where the core has been arranged, and removing the core from a casting which has been cast in the mold for casting. | 02-06-2014 |
| 20140262105 | METHOD OF MAKING A REFRACTORY MOLD - A method of making a bonded refractory mold is disclosed. The method includes forming a fugitive pattern comprising a thermally removable material. The method also includes forming a refractory mold comprising a mold wall, the mold wall comprising a refractory material and defining a sprue, a gate and a mold cavity, the gate having a gate inlet opening into the sprue and a gate outlet opening into the mold cavity, the mold defined by the fugitive pattern. The method further includes forming a gas vent that extends through the mold wall. The method also includes covering the gas vent with a gas permeable cover. | 09-18-2014 |
| 20140262106 | METHOD OF USING A REFRACTORY MOLD - A method of using a bonded refractory mold is disclosed. The method includes forming a refractory mold comprising a mold wall on a fugitive pattern comprising a thermally removable material, the mold wall comprising a refractory material and defining a sprue, a gate and a mold cavity, the gate having a gate inlet opening into the sprue and a gate outlet opening into the mold cavity; a gas vent extending through the mold wall; and a gas permeable refractory material covering the gas vent, the fugitive pattern having a sprue portion, the sprue portion having a sprue channel that is in fluid communication with a sprue inlet and that extends toward a sprue outlet. The method also includes heating the refractory mold with a hot gas to remove the thermally removable material, wherein a portion of the hot gas is exhausted from the refractory mold through the gas vent. | 09-18-2014 |
| 20150122446 | INVESTMENT CASTING METHOD FOR GAS TURBINE ENGINE VANE SEGMENT - An investment casting method for a cast ceramic core ( | 05-07-2015 |
| 20160167116 | SALT CORES AND GENERATIVE PRODUCTION METHODS FOR PRODUCING SALT CORES | 06-16-2016 |
| 164516000 | Utilizing aqueous slurry material | 7 |
| 20120291983 | METHOD OF FORMING A CAST METAL ARTICLE - A cast metal article is formed with an internal cavity. The internal cavity is formed by a ceramic core which is removed from the cast metal article to leave the cavity. The ceramic core is formed with a cavity to facilitate removal of the core from the cast metal article. To remove the core from the cast metal article, the cavity in the core is filled with a leaching liquid. | 11-22-2012 |
| 20150075746 | Method of Casting a Component Having Interior Passageways - A method of casting a component ( | 03-19-2015 |
| 164518000 | With particular binder | 2 |
| 20160158831 | SALT CORES AND ADDITIVE MANUFACTURING METHOD FOR PRODUCING SALT CORES - The invention relates to salt cores for producing castings, which salt cores have a layered structure and can be produced by means of an additive manufacturing method. Salt is preferably used as a molding material, the salt being applied in layers and being supplied with a binder. | 06-09-2016 |
| 20160167117 | SALT CORE AND ADDITIVE MANUFACTURING METHOD FOR PRODUCING SALT CORES | 06-16-2016 |
| 164519000 | With particular refractory material | 3 |
| 20100018666 | HIGH EMITTANCE SHELL MOLDS FOR DIRECTIONAL CASTING - Shell molds and processes for making the shell molds that exhibit high emissivity in the red and infrared regions. In this manner, thermal resistance within a gap formed between solidifying cast metal and the interior mold surface is decreased. In one embodiment, the facecoat region is formed from a slurry composition comprising an aluminum oxide, a green chromium oxide and a silicon dioxide. In another embodiment, the facecoat region is formed from a slurry composition including zirconium silicate and silica with stucco layer of alumina is included. | 01-28-2010 |
| 20110232857 | Investment Casting Shell Incorporating Desiccant Material - An investment casting method involves producing a casting shell by applying a hardenable slurry to a sacrificial pattern. To hasten the hardening of the slurry into the shell, a stucco coat including a desiccant material having a high surface area is subsequently applied to the slurry. | 09-29-2011 |
| 20150027657 | METHOD AND CASTING CORE FOR FORMING A LANDING FOR WELDING A BAFFLE INSERTED IN AN AIRFOIL - A method and casting core for forming a landing for welding a baffle inserted into an airfoil are disclosed, wherein the baffle landing of the blade or vane is formed in investment casting by the casting core rather than by wax, reducing tolerances and variability in the location of the baffle inserted into the cooling cavity of airfoil when the baffle is welded to the baffle landing. | 01-29-2015 |
| 164027000 | Shaping plural separable mold parts | 9 |
| 20170232504 | CASTING GREEN SAND MOLD, AND METHOD FOR PRODUCING CAST ARTICLE USING IT | 08-17-2017 |
| 164028000 | Including shaping core member | 5 |
| 20090056902 | Method of forming a cast metal article - An unfired ceramic base core having a first coefficient of thermal expansion is provided. A core element having a second coefficient of thermal expansion is positioned in an opening formed in the unfired ceramic base core. The opening in the unfired ceramic base core is filled with a filler material having a third coefficient of thermal expansion. The third coefficient of thermal expansion is greater than the first coefficient of thermal expansion and less than the second coefficient of thermal expansion. The ceramic base core is fired without cracking the base core and without cracking the filler material. The ceramic base core contains silica and zircon and has a silica content of 70% or less and a zircon content of 30% or more. The core element may be formed of a ceramic material or a refractory metal. | 03-05-2009 |
| 20100122789 | Investment Casting Cores and Methods - An investment casting core combination includes a metallic casting core and a ceramic feedcore. A first region of the metallic casting core is embedded in the ceramic feedcore. A mating edge portion of the metallic casting core includes a number of projections. The first region is along at least some of the projections. A number of recesses span gaps between adjacent projections. The ceramic feedcore includes a number of compartments respectively receiving the metallic casting core projections. The ceramic feedcore further includes a number of portions between the compartments and respectively received in the metallic casting core recesses. | 05-20-2010 |
| 20100252220 | CORE-SETTING METHOD AND APPARATUS FOR A MOLDING APPARATUS FOR PRODUCING FLASKLESS MOLDS - These inventions provide a method and an apparatus for setting a core used in a molding apparatus that produces flaskless molds, wherein the core-setting apparatus has a simple structure and the accuracy of the positioning of the core while setting it on the lower mold is improved. The inventions comprise:
| 10-07-2010 |
| 20100294451 | Method for producing a pattern for the precision-cast preparation of a component comprising at least one cavity - A method for producing a pattern for the precision-cast representation of a component having a cavity is provided. In the method wherein the component is a turbine component having a cavity, the finished pattern comprises a core and an outer contour pattern, the outer contour pattern at least partially surrounds the core and at least partially defines the outer contour of the turbine component. The core is produced from a curable core material, which cures during the course of the method, and the outer contour pattern is produced from a material which can be burned or melted out. In this case, first the outer contour pattern is produced with a cavity corresponding to the cavity of the turbine component and subsequently the curable core material is filled into the cavity and cured to produce the core. | 11-25-2010 |
| 20150367411 | METHODS FOR PRODUCING AND CLEANING SAND CASTINGS - A method for cleaning residual mold material from a sand casting, the mold material comprising sand, a binder, and an electrolytic material, the method comprising exposing the residual mold material to an electrolytic solution; and subjecting the residual mold material to an electric current. | 12-24-2015 |
| 164029000 | Cope and drag sections | 3 |
| 20090020255 | Method of changing a match plate in a flaskless molding apparatus for an upper mold and a lower mold - This invention provides a method for changing a match plate in a molding apparatus for a flaskless upper mold and a lower mold, which method allows easy change of the match plate. | 01-22-2009 |
| 20090078389 | FLASKLESS MOLDING METHOD - A flaskless molding method, wherein a match plate ( | 03-26-2009 |
| 20140060768 | SAND PRINTED MOLD PACKAGE FOR CASTING A WHEEL ASSEMBLY HAVING DIRECTIONAL SOLIDIFICATION FEATURES - A mold package for casting a wheel assembly includes a sand printed drag mold having a cavity with a chill support chamber and a metal chill received in the support chamber. The mold package further includes at least one sand printed mold insert received in the cavity of the sand printed drag mold and a sand printed cope mold coupled to the sand printed drag mold such that a casting cavity for the wheel assembly is created by the exterior inner surfaces of the cope mold, the drag mold and the at least one insert. | 03-06-2014 |
| 164030000 | Positioning or maintaining position of core relative to the mold | 5 |
| 20090308559 | HOLLOW ARTICLES AND METHOD OF MANUFACTURE - A hollow jewelry pendant or bead formed by investment casting is disclosed. The method of manufacture consists of producing a mold usually consisting of metal, silicone or rubber containing a cavity for injecting an inner soluble core. A geometric lock is also formed as part of the injection core which will orientate the core both laterally and radially. This core will define the inner surface or hollow portion of the pendant as well as form the bail or hole through which the chain will slide. A second mold is produced usually consisting of metal, silicone or rubber containing a cavity into which the soluble core will be placed with the lock positioning the core so as to insure proper orientation. This is critical for consistent wall thickness and matching of design features. The cavity also allows for a wax or plastic material suitable for investment casting to be injected around the soluble core. The part consisting of the pendent or bead and soluble core is then removed from the mold and the core is dissolved using the appropriate water or chemical solution. | 12-17-2009 |
| 20110132564 | INVESTMENT CASTING UTILIZING FLEXIBLE WAX PATTERN TOOL - An investment casting process wherein the wax pattern tool ( | 06-09-2011 |
| 20140190649 | CASE CORROSION-RESISTANT LINERS IN NOZZLES AND CASE BODIES TO ELIMINATE OVERLAYS - A method for protecting a turbomachine from corrosion may include creating a first sand mold in a drag of a casting flask, coupling a cope of the casting flask to the drag, removing the runner pin and the at least one riser pin from the cope to expose a runner and at least one riser, respectively, and pouring a molten first material in the runner to cast a first component of the turbomachine. The method may further include removing the first sand mold, creating a second sand mold utilizing the first component in the drag, coupling the cope to the drag, removing the runner pin and the at least one riser pin from the cope to expose a runner and at least one riser, respectively, and pouring a molten second material in the runner to cast a second component of the turbomachine integral with the first component. | 07-10-2014 |
| 20160031001 | SPLIT WEDGE AND METHOD FOR MAKING SAME - A method of manufacturing a friction wedge of a rail car includes forming, in drag and cope portions of a mold, at least one cavity that defines at least some exterior features of at least one friction wedge. At least one core is inserted into the drag portion adjacent to the cavity. The core includes at least one surface configured to define a column face of the friction wedge. Rigging is formed in the drag and cope portion of the mold. The rigging includes a down sprue, at least one ingate, and at least one runner for directing molten material to the cavity. Molten material is poured into the mold to form the friction wedge casting. The friction wedge casting is removed from the mold. Rigging is removed from the friction wedge casting and the friction wedge casting is finished. | 02-04-2016 |
| 164031000 | Utilizing plural cores | 1 |
| 164032000 | Maintaining cores in spaced relationship within single cavity | 1 |
| 20170232506 | DIE CAST SYSTEM WITH CERAMIC CASTING MOLD FOR FORMING A COMPONENT USABLE IN A GAS TURBINE ENGINE | 08-17-2017 |
| 164033000 | Lining mold surface | 3 |
| 20100300640 | CASTING PROCESSES AND YTTRIA-CONTAINING FACECOAT MATERIAL THEREFOR - A slurry suitable for forming facecoats, facecoats formed by such a slurry, and processes using such facecoats. The slurry is formed of a particulate refractory material, an aqueous suspension containing a particulate inorganic binder, a thixotropic organic binder, a dispersant, and possibly optional constituents excluding particulate refractory materials and inorganic binders. The particulate refractory material constitutes at least about 60 weight percent of the slurry and consists essentially of yttria. The aqueous suspension containing the particulate inorganic binder constitutes at most about 35 weight percent of the facecoat slurry. The dispersant is present in the slurry in an amount sufficient to stabilize the slurry at a pH of up to about 10, and has the general formula H | 12-02-2010 |
| 20110094698 | Fugitive core tooling and method - A ceramic core is produced by introducing a fluid ceramic core material, such as a ceramic slurry, into a core-shaped cavity formed at least in part by one or more fugitive core tooling liners residing in a back-up body, removing the ceramic core from the cavity, and removing the one or more fugitive tooling liners from the back-up die body and discarding them. The fugitive tooling liners and optional tooling inserts are used in one or more production cycles (e.g. ceramic slurry injection cycle) to make a single or multiple ceramic cores and then replaced with fresh (un-used) tooling liners and optional inserts to make other ceramic cores. | 04-28-2011 |
| 20160144423 | CASTING CORES AND METHODS FOR MAKING - Embodiments of the present invention include methods for forming ceramic articles, such as cores and core dies used in investment casting. The method may provide ceramic articles having improved strength and smoothness compared to articles manufactured by conventional methods. One embodiment is a method that comprises introducing a liquid comprising a silicon-bearing fluid into pores of a porous ceramic body; and heating the porous ceramic body in an oxygen-bearing atmosphere to form silica within the pores of the body. | 05-26-2016 |
