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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...
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6776213 |
System for casting a metal article
An apparatus for use in casting a metal article includes a furnace assembly into which a mold is raised and an annular fluidized bed adjacent to the furnace assembly. The mold is filled with molten...
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6719034 |
Process for producing a tube-shaped cathode sputtering target
A process for producing a tube target for cathode sputtering plants, in which the tube target is formed from a metallic inner tube (target holder) made of a first material with a first melting...
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6568456 |
Method for manufacture of a directionally solidified columnar grained article
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...
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6557618 |
Apparatus and method for producing castings with directional and single crystal structure and the article according to the method
The present invention relates to metal casting and can be used in producing large sized blades with directional and single crystal structure having large horizontal shoulders. The apparatus...
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6523599 |
Casting furnace with centrally located heating element for producing directionally solidified castings
A casting furnace ( 1 ) for producing castings which are directionally solidified in monocrystalline and polycrystalline form. The casting furnace ( 1 ) includes an upper heating chamber ( 2 ),...
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6443213 |
System for casting a metal article using a fluidized bed
An apparatus for use in casting a metal article includes a furnace assembly into which a mold is raised and a fluidized bed adjacent to the furnace assembly. The mold is filled with molten metal...
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6443214 |
Method for heat treating mold cast product
A method for heat treating a mold cast product by releasing the product from a mold and hardening the product. Since the mold release is performed when a surface layer of the product held in...
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6422294 |
Casting apparatus and casting method of cylinder head
To obtain a high-quality cast product of a cylinder head, a proper directivity to the cooling process of the molten metal after a pouring process by utilizing the shape of a cylinder head is...
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6199618 |
Method of producing castings
In order to produce castings from cast iron with foliated graphite, the carbon content of the cast iron can be set at between approximately 3 and 4% by controlling the melting process of the type...
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6114052 |
Ingot plate made of thermoelectric material, rectangular bar cut from the ingot plate, and process of fabricating the ingot plate
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5931214 |
Mold heating vacuum casting furnace
Mold heating vacuum casting furnace system comprising a mold preheating chamber located above and connected to a vacuum casting chamber via an intermediate isolation valve. A mold elevator is...
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5913353 |
Process for casting light metals
A process for casting light metals. The process includes preheating ingots of the light metal in a protective atmosphere before being introduced into a melting furnace wherein the molten metal is...
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5855828 |
Method of forming a composite structure such as a rocket combustion chamber
A refractory composite structure is formed which comprises a ductile refractory metallic layer with a roughened surface which is tightly bonded to a refractory composite structural shell. The...
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5477906 |
Casting of metal objects
A mould assembly comprising mould segments of generally non-thermally conductive material which define a mould cavity is upwardly filled with liquid metal through at least one in-gate. A thermal...
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5421397 |
Method of and system for casting engine blocks having defect free thin walls
An improved method of and system for die casting an engine block made of aluminum is provided. Included in the system is a calorific fluid for circulating through a bore pin assembly in a...
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5348071 |
Top fill casting
The apparatus for casting comprises a pressure vessel and a device for pressurizing the vessel. The pressurizing device is in fluidic connection with the vessel. The apparatus is also comprised of...
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5316070 |
Controlled casting of Al-Si hypereutectic alloys
Al base - Si hypereutetic alloys can exhibit problems of variable and unwanted microstructure throughout the section of the article being cast. This problem is overcome by controlled cooling of the...
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5314001 |
Method of casting vehicle wheel
The lower mold which forms the external side of the vehicle wheel is water-cooled by water-cooling pipes. The rib-forming portions of the upper mold which forms the internal side of the vehicle...
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5078200 |
Method of cast-welding between finely pearlitized rails
Aluminothermically produced steel is poured into a casting mold which surrounds the two rail ends. A cooling agent is applied to the surfaces of the rail heads of the rail portions adjacent the two...
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5072771 |
Method and apparatus for casting a metal article
A long thin metal article having a thick portion is cast with a stress free interconnection between the thick and thin portions of the article. A heat transfer wall is provided around at least a...
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4905752 |
Method of casting a metal article
A long thin article having an enlarged end portion, such as a vane having a long thin airfoil and a shroud at the end of the airfoil, is cast by using a chill at the enlarged end portion of an...
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4862947 |
Method of casting an article
An improved mold has a coating of material having a relatively high emissivity. The surface of the coating has an emissivity which is at least twice as great as the emissivity of the surface of the...
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4813470 |
Casting turbine components with integral airfoils
Method and apparatus for controlling radial solidification in cast turbine wheel or nozzle assembly so as to produce an equiaxed fine grain structure in a hub portion and a directionally solidified...
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4809764 |
Method of casting a metal article
A long, thin article or portion of an article of an equiaxed metal is cast without providing gates along the length of a portion of a mold cavity in which the long thin portion of the article is...
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4804035 |
Method of gravity casting
A method of carrying out gravity mold casting, i.e., pouring of molten metal into a mold cavity under the force of gravity. This particular method features the application of a heating insulating...
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4759399 |
Method and apparatus for producing hollow metal ingots
Hollow metal ingots are produced by a hollow metal manufacturing apparatus comprising a mold placed on a stool, and a cylindrical metallic cooling core placed in the mold to form an annular casting...
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4729542 |
Mold for producing connecting straps for lead batteries
A mold for producing connecting straps for lead batteries, particularly according to a cast-on-strap (COS) process or the like, is especially adapted for the simultaneous casting-in of a pole...
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4724890 |
Process for connecting frogs consisting of austenitic manganese steel casting with rails consisting of carbon steel
For the purpose of connecting frogs consisting of austenitic manganese steel casting with rails consisting of carbon steel there is proposed an aluminothermic process in which the carbon content of...
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4709461 |
Method of forming dense ingots having a fine equiaxed grain structure
A method of forming a fine grained equiaxed ingot by melting metal and placing it in a mold having a restriction at the entrance disposed to solidify the metal in the entrance to the mold prior to...
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4683937 |
Ingot mold and method of producing same
A process for casting ingot molds wherein a smooth, rigidized insulative board is used to form the as cast bottom surface of the ingot mold to produce a smooth flat surface which does not require...
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4615373 |
Method and an apparatus for manufacturing a hollow steel ingot
A method and an apparatus for manufacturing a hollow steel ingot are disclosed, which comprise coaxially arranging a cylindrical metallic core in a center of a mold and pouring molten steel into an...
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4612969 |
Method of and apparatus for casting articles with predetermined crystalline orientation
A method and ceramic mold structure for use in producing articles having a predetermined crystalline orientation such as single crystals. The technique involves the use of a ceramic mold mounted on...
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4573516 |
Method of and apparatus for casting directionally solidified articles
A ceramic mould is supported on a stainless steel platform carried at the upper end of a water-cooled tube surrounded by a copper cylinder containing alumina powder of approximately 100 μm...
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4549599 |
Preventing mold and casting cracking in high rate directional solidification processes
Insulating material is applied in selected mold surfaces and in critical thicknesses to prevent cracking of the mold and casting therein during the heating and cooling steps of high rate...
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4463797 |
Inhibiting shrinkage pipe formation of metal casting
A mold structure for casting large metallic parts such as ingots so as to avoid the formation of the "shrinkage pipe" which normally develops on the exposed top surface of such castings during...
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4450889 |
Mold having a helix for casting single crystal articles
A ceramic shell mold for directional solidification of a single crystal metal article has an improved starter section which converts columnar grain growth to single crystal grain growth. The pitch...
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4278124 |
Method of producing hollow steel ingot and apparatus therefor
The casting apparatus for a hollow steel ingot is constructed such that: at least three concentric pipes are provided in the central portion of an ordinary mold for a steel ingot; a core is formed...
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4240495 |
Method of making cast metal turbine wheel with integral radial columnar grain blades and equiaxed grain disc
A cast metal turbine wheel is made comprising a cylindrical disc with equiaxed grains and integral blades with columnar grains oriented substantially parallel to the leading and trailing blade...
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4190094 |
Rate controlled directional solidification method
An improved method of directional solidification is provided by varying the rate of withdrawal of a casting from the hot zone of a solidification furnace according to the sense of change of the...
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4057098 |
Method of producing thin-walled castings
A method of producing castings comprising the steps of: pouring moulds with inoculated cast iron containing, by weight per cent: carbon 3.6-3.8, silicon 2.8-3.2, manganese up to 0.4, magnesium not...
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4054170 |
Ingot mold and method for pouring ingots
An ingot mold of the bottle-top type and method for its use wherein the primary pipe or shrinkage cavity at the top of the ingot is decreased in length and a solid bridge is formed between the...
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4030532 |
Method for casting steel ingots
A method for casting steel ingots in molds is provided wherein the upper surface of the ingot is caused to solidify before the interior of the ingot is solidified in order to provide an improved...
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4007771 |
Process for the production of aluminum
Aluminum is produced from low-grade aluminum alloys by melting an Al-X alloy wherein X has a higher specific weight than aluminum and forms an eutectic mixture rich in aluminum, the starting melt...
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4005511 |
Method and apparatus for casting extrusion dies
The specification discloses a method and related apparatus for casting aluminum extrusion die blanks, both cored and uncored, of molten steel. A disc-like carbon or other suitable material mold...
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3942581 |
Method and apparatus for casting directionally solidified articles
The invention relates to an improved method of casting superalloy articles and more particularly to an apparatus for directionally solidifying eutectic superalloy compositions to produce a...
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3903956 |
Die casting machine with parting line feed
A die casting machine has relatively movable dies defining therebetween a cavity in which a casting is formed and conduit means communicating with the cavity and an opening in the outer surface of...
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3848655 |
METHOD OF MAKING A STEEL INGOT
A method of making a steel ingot which comprises pouring molten steel into a steel ingot forming mold having a molded material for maintaining the side portion of the molten steel in a hot...
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3808671 |
METHOD OF MAKING HOLLOW CAST ARTICLES FROM METAL ALLOYS HAVING LONG FREEZING RANGES
A technique for improving the physical properties of thin walled castings and reduction or avoidance of hot tearing in such castings involves casting in the inverted position, preferably using no...
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3789908 |
MANUFACTURE OF HOLLOW CYLINDRICAL BODIES
A method of producing a hollow cylindrical body of revolution in which there is welded to the outer peripheral surface of a metal sleeve a lower molten metal by means of a ring of molten metal...
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