|
Match
|
Document |
Document Title |
|
|
7575042 |
Methods for the formation of refractory metal intermetallic composites, and related articles and compositions
A method for forming an article is described. The method includes the step of applying a precursor material to at least one surface of a mold structure for casting the article, and curing the...
|
|
|
7296616 |
Shell mold for casting niobium-silicide alloys, and related compositions and processes
A shell mold for casting molten material to form an article is described. The mold includes a shell for containing the molten material, formed from at least one of yttrium silicates, zirconium...
|
|
|
7258158 |
Increasing 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...
|
|
|
7128129 |
Investment casting slurry composition and method of use
A composition and method for forming investment casting shells includes using colloidal silica, zircon flour, and fused silica in a slurry which is applied to a pattern. After the slurry is applied...
|
|
|
6920913 |
Method for processing casting materials to increase slurry lifetime
Embodiments of a method for increasing the lifetime of a casting slurry are described. One feature of the disclosed embodiments comprises processing refractory materials that are used to form...
|
|
|
6651730 |
Slurry composition and process for producing ceramic moulds
A ceramic mould slurry is disclosed for forming moulds and metal castings of improved surface quality. The slurry comprises a binder, a gelling agent, a first refractory material having a density...
|
|
|
6619368 |
Method for imaging inclusions in investment castings
A method for imaging inclusions in metal or metal alloy castings is described. One embodiment of the present method first involves casting a metal or metal alloy article using an investment casting...
|
|
|
6598654 |
Molding sand appropriate for the fabrication of cores and molds
The molding sand comprises hollow microspheres of aluminum silicate, preferably with an aluminum content between 15 and 45% by weight, a wall thickness between 3 and 10% of the particle diameter...
|
|
|
6467534 |
Reinforced ceramic shell molds, and related processes
A ceramic casting shell mold having a pre-selected shape comprises alternate, repeating layers of a ceramic coating material and a ceramic stucco, defining a total thickness of the shell mold; and...
|
|
|
6390179 |
Method for processing materials to increase slurry lifetime
Methods for increasing the lifetime of a casting slurry are described. One feature of the invention is processing refractory powders at a first hydration level to produce powders having a second,...
|
|
|
6237671 |
Method of casting with improved detectability of subsurface inclusions
Method of making a casting by investment casting of a metal or alloy, especially titanium and its alloys, in a ceramic investment shell mold in a manner to provide enhanced x-ray detectability of...
|
|
|
6109332 |
Ceramic mold finishing
A technique for smoothing and otherwise changing the surfaces of porous bodies, such as ceramic molds, made using layer manufacturing processes, such as three dimensional printing processes. The...
|
|
|
6102099 |
Method for imaging inclusions in investment castings
A metal or metal alloy article is cast using an investment casting mold where the mold facecoat, and perhaps one or more of the mold backup layers, comprises an imaging agent distributed...
|
|
|
6041679 |
Endoscopic end effectors constructed from a combination of conductive and non-conductive materials and useful for selective endoscopic cautery
A non-metallic end effector for use in an endoscopic surgical tool includes a metallic core for strength and for providing a selected electrode surface on the end effector. Selectively conductive...
|
|
|
6024163 |
Investment casting brittle, reactive materials
Investment casting shells, methods for their manufacture and methods for casting metals and alloys using such shells are disclosed. One feature of the shells is that the facecoat plus interior...
|
|
|
5983983 |
Method of making fine grained castings
A mould is provided having a surface which defines a mould cavity, and the mould surface includes on at a least part thereof a compound comprising a nucleation agent. The mould is heated. A metal...
|
|
|
5766329 |
Inert calcia facecoats for investment casting of titanium and titanium-aluminide alloys
A calcia mold facecoat is applied to a mold for casting parts composed of reactive metals such as titanium and titanium aluminide. The facecoat is composed of a calcium carbonate based slurry...
|
|
|
5643844 |
Method for stabilizing ceramic suspensions
Time-stable yttria slurries, and a method for forming such yttria slurries and articles therefrom are described. The method involves forming an intimate mixture comprising yttria and at least about...
|
|
|
5617912 |
Process for preparing and using a ceramic shell as a casting mold with reducing properties
The present invention pertains to a process for preparing ceramic shells as casting molds, wherein a) a pattern of a part to be cast, which pattern can be melted or dissolved out, is prepared, b)...
|
|
|
5611848 |
Process for preparing refractory molded articles and binders therefor
This invention provides a process for preparing a refractory molded article comprising the steps of (a) forming a molded article matrix from an aggregate and the first binder, (b) impregnating the...
|
|
|
5391606 |
Emissive coatings for investment casting molds
Emissive compositions are described that can be applied as a coating to the surface of an investment casting mold to increase or decrease the rate of cooling of a casting within the mold. A coating...
|
|
|
RE34702 |
Reinforced ceramic investment casting shell mold and method of making such mold
A reinforced ceramic investment casting shell mold and method of making such mold. The ceramic investment casting shell mold includes alternate, repeating layers of a ceramic material and a ceramic...
|
|
|
5159970 |
Method of making shell moulds for casting
A method of making a shell mould, particularly for a lost wax casting operation, includes the deposition of an adhesion agent on the pattern before the deposition of layers of ceramic material to...
|
|
|
4557316 |
Method for manufacture of investment shell mold suitable for casting grain-oriented super alloy
A method for the manufacture of an investment shell mold is disclosed which comprises applying to the surface of a wax pattern at least one layer of slurry formed by dissolving in an organic...
|
|
|
4044815 |
Precision investment casting mold, pattern assembly and method
A precision investment casting ceramic mold of the self-casting type is made as a unitary mold by providing separately a pattern for a wax charge-holding assembly and a pattern for a wax article...
|
|
|
4043377 |
Method for casting metal alloys
In a method for casting metal alloys, a molten metal alloy is introduced into a mold of a desired configuration containing a core material fabricated to a desired shape from titanium nitride while...
|
|
|
3815658 |
PROCESS FOR MAKING A METALLURGICALLY SLOW REACTING MOLD
The mold is made by initially dipping a pattern into a mixture of pulverized magnesium carbonate and colloidal hydrolyzed silicic acid to form a number of layers thereon. The green mold is then...
|
|
|
3743003 |
MAKING INVESTMENT SHELL MOLDS INHIBITED AGAINST REACTION WITH MOLTEN REACTIVE AND REFRACTORY CASTING METALS
An investment shell mold inhibited against reaction with molten titanium, zirconium and other reactive and refractory metals cast therein is made by investing a pattern with successive dip coats...
|
|
|
3598167 |
METHOD AND MEANS FOR THE PRODUCTION OF COLUMNAR-GRAINED CASTINGS
A method and materials for producing shell molds for casting columnar grained metal components wherein a pattern is prepared corresponding to the shape of casting to be formed. The pattern is then...
|
|
|
3489202 |
PRODUCTION OF CASTINGS
|
|
|
3426832 |
METHOD OF MAKING METAL PATTERNS AND CORE BOXES FOR SHELL MOLDING
|
|
|
3426834 |
EXPENDABLE PATTERN FOR PRECISION INVESTMENT CASTING
|
|
|
3422880 |
METHOD OF MAKING INVESTMENT SHELL MOLDS FOR THE HIGH INTEGRITY PRECISION CASTING OF REACTIVE AND REFRACTORY METALS
|
|
|
3367393 |
Thermally insulated shell mold and method for making same
|
|
|
3296666 |
Method of preparing an investment mold for use in precision casting
|
|
|
3266106 |
Graphite mold and fabrication method
|
|
|
3257692 |
Graphite shell molds and method of making
|
|
|
3241200 |
Precision mold and method of fabrication
|
|
|
3239897 |
Precision casting mold and methods and materials for production and use
|
|
|
3209421 |
Production of refractory molds
|
|
|
3158912 |
Controlled grain size casting method
|
|
|
3153826 |
Precision casting molds and techniques
|