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| Number | Title | Issue Date |
| 7377303 | Die casting machine and casting method by thereof machine The present invention relates to a die casting machine. A molten metal (melted liquid) is supplied into a evacuated casting space that is formed by a combination of a movable mold and a fixed mold. The molten metal is first moved in a horizontal direction along a mo... | 05/27/2008 |
| 7240718 | Method for casting core removal A thermal-oxidative process is used to remove a casting core from a cast part. ... | 07/10/2007 |
| 7017649 | Die casting machine and casting method A die casting machine obtain to obtain a suitable reduced pressure and reliably prevent the entry of molten metal into a valve when reducing the pressure in a cavity and injecting and filling it with a molten metal for casting, provided with the valve for opening an... | 03/28/2006 |
| 6935405 | Sink compound laminate modeling process A sink compound laminate molding process having a copper material in thickness of 0.1-0.8 mm placed at the bottom of the molding cavity with the bottom of the copper laminate fully bound to the bottom of the molding cavity, the copper being heated up to 300-600° C.... | 08/30/2005 |
| 6830079 | Integrated apparatus and method for filling porous composite preforms A method and apparatus for filling preforms with resin or slurry includes a tank for holding the slurry and an autoclave for holding the preforms. The tank and autoclave have a common vacuum system connected thereto, and the tank is disposed above the autoclave. Thi... | 12/14/2004 |
| 6776219 | Castable refractory investment mold materials and methods of their use in infiltration casting Methods and materials for preparing investment molds useful in pressure infiltration casting of near net-shape metal or metal matrix composite (MMC) components. One embodiment of the invention includes disposing a slurry of an appropriately sized refractory material... | 08/17/2004 |
| 6666254 | Method for the uphill casting of cast pieces in sand moulds with controlled solidification A method is described for uphill casting in sand molds with high-resin casting cores or especially casting cores containing binders, and with directed solidification of metallic castings that have at least one cavity. In particular, these are prototypes o... | 12/23/2003 |
| 6648054 | Die casting method and die casting machine The present invention provides a die-casting method comprising the steps of evacuating a cavity 30 defined by dies of a die-casting machine to provide therein a vacuum of 100 millibar or less during a first period, injecting a reactive gas from a sleeve o... | 11/18/2003 |
| 6425433 | Die casting vacuum apparatus An apparatus to inject molten material into and evacuate gasses from a mold cavity, including a pair of ganged pistons in communication with the mold cavity. An injection piston injects molten material into the cavity from the bottom, and a vacuum piston ... | 07/30/2002 |
| 6360809 | Methods and apparatus for high throughput pressure infiltration casting Disclosed are economical methods and apparatus for high throughput pressure infiltration casting. Methods of the invention use a mold vessel as an evacuation chamber along with an evacuation cap to produce superior quality near-net shape finished cast par... | 03/26/2002 |
| 6257312 | Preparation of metal-matrix composite materials with high particulate loadings by concentration A composite material having less than about 25 volume percent refractory particles in a metal matrix is concentrated to have about 37-45 volume percent refractory particles. The concentrating is accomplished by heating the composite material to melt the m... | 07/10/2001 |
| 6209616 | Vacuum-assisted, gravity-fed casting apparatus and method This invention relates to metal casting apparatus, methods and molds and more particularly to the casting of metal in refractory, gas-permeable, shell-type molds which are lighter and have thinner wall thicknesses than the refractory, gas-permeable, shell... | 04/03/2001 |
| 6148899 | Methods of high throughput pressure infiltration casting A mold cavity in a mold vessel is evacuated. A charge of molten infiltrant is transported into the mold vessel while the vacuum is maintained in the mold cavity. Pressure is applied to the molten infiltrant to move the molten infiltrant from the mold vess... | 11/21/2000 |
| 6125914 | Method for making a composite part with magnesium matrix by infiltration casting A mold having a supply tube in a lower portion and in which has been placed a fibrous preform, is placed in a container. A crucible filled with magnesium blocks is placed under the mold. The magnesium is heated and the mold is preheated under vacuum until... | 10/03/2000 |
| 6125911 | Method and apparatus for manufacturing die-castings The apparatus includes a diecasting mold and evacuation elements for the controlled evacuation of a mold cavity. The evacuation elements includes a vacuum tank and a suction line interconnecting the vacuum tank and the diecasting mold. the suction line in... | 10/03/2000 |
| 6123142 | Method of molding articles to minimize shrinkage and voids Molten material is elevated into a mold cavity and subsequently pressure is brought to bear on the molten material in the mold cavity substantially immediately to solidify the molten material under pressure. The molten material is tapped from a reservoir ... | 09/26/2000 |
| 6070649 | Method for pouring a metal melt into a mold Disclosed is a method and apparatus for a metal melt, especially steel, into a vertically oscillating mold via a tundish or intermediate vessel provided with an immersion nozzle to generate endless strands, especially thin strands of steel wherein the int... | 06/06/2000 |
| 6070644 | Investment casting using pressure cap sealable on gas permeable investment mold A gas permeable ceramic investment mold is disposed in a casting chamber and filled with melt to be solidified via a mold melt inlet, such as for example a mold pour cup adapted to receive the melt from a melting crucible in the casting chamber. After the... | 06/06/2000 |
| 6070643 | High vacuum die casting A metal or alloy is melted in a vaccuum chamber disposed about an end of a shot sleeve. The opposite end of the shot sleeve is communicated to a die cavity between first and second dies which are disposed in ambient air atmosphere. The dies have one or mo... | 06/06/2000 |
| 6035922 | Method for manufacturing a casting and apparatus therefor To provide an apparatus for manufacturing a casting, in which sealing can be formed between joint surfaces of a mold without using any packing material. An apparatus for manufacturing a casting comprising a mold split into at least two mold parts designed... | 03/14/2000 |
| 6024158 | Process for manufacturing diecast parts Parts are diecast from a light metal alloy which in the molten state is fed under gravity into a casting chamber of a diecasting machine and whence forced by a plunger into a mould chamber which undergoes controlled evacuation in accordance with the posit... | 02/15/2000 |
| 6003586 | Heat-sinking structures and electrical sockets for use therewith A process of making a heat-sinking structure, which includes providing a mold having cavities closed at one end and open at another end, the cavities corresponding to the heat dissipating surfaces on the heat-sinking structure, at least partially evacuati... | 12/21/1999 |
| 5842509 | Application method of powder mold lubricant to vacuum die-casting mold and vacuum die-casting apparatus An application method of a powder mold lubricant for a vacuum die-casting mold can effectively apply the powder mold lubricant onto a mold surface of the mold cavity with supplying the powder mold lubricant in small amount, can avoid liquefying of the pow... | 12/01/1998 |
| 5746267 | Monolithic metal matrix composite Metal matrix composites are manufactured in a vacuum die casting machine. Solid aggregate material is placed in a die, the die is evacuated, and molten metal is driven by a piston to infiltrate the solid aggregate material where it subsequently solidifies... | 05/05/1998 |
| 5460218 | Method for discharging gas out of metal molds and apparatus therefor A method and apparatus capable of continuously discharging contaminated gas out of metal molds, the gas being generated prior to the casting step and including moisture. A gas vent valve is provided at a gas vent passage in communication with a mold cavit... | 10/24/1995 |
| 5429172 | Lost foam process for casting low carbon stainless steel Low carbon stainless steel parts are formed utilizing a high vacuum of 20" to 29" of mercury during the pouring stage of the lost foam process.... | 07/04/1995 |
| 5348073 | Method and apparatus for producing cast steel article The apparatus for producing a cast steel article has a permeable mold having a cavity, a sprue and at least one rise/run-off portion, and a vacuum apparatus, the permeable mold being provided with a hole having an opening on a mold surface near the rise/r... | 09/20/1994 |
| 5335711 | Process and apparatus for metal casting Cast components having reduced porosity levels are produced by pouring a molten metal into a mould which is in a first chamber, and withdrawing the filled mould into a second chamber. The second chamber is then isolated from the first chamber with regard ... | 08/09/1994 |
| 5329981 | Method of producing a metal mold A method of producing a metal mold is disclosed. A heat resistant sheet is forcedly brought into close contact with a product configuration surface of a matrix such as a wooden pattern, a resin model, or the like by making use of negative pressure. The ma... | 07/19/1994 |
| 5318093 | Method and apparatus for investment casting In an improved method and apparatus for investment casting, a pattern (31) is mounted on a sprue base (19) of an spider gasket (12) that is secured to one end of a standard investment flask (11). A solid end cap (13) is secured to the other end of the fla... | 06/07/1994 |
| 5287910 | Permanent mold casting of reactive melt Titanium based and nickel based castings are made by casting a suitable melt having a relatively low melt superheat into a mold cavity defined by one or more low carbon steel or titanium mold members where the melt solidifies to form the desired casting. ... | 02/22/1994 |
| 5273099 | Composite aluminum member joining process A composite aluminum member joining process. A chemical film including potassium and fluorine is formed on an aluminum member or a flux including potassium and fluorine is coated on an aluminum member. The coated aluminum member is buried together with a ... | 12/28/1993 |
| 5219409 | Vacuum die casting process The process calls for testing and monitoring the pressure levels in different parts of the die casting apparatus during a casting operation, including the die cavity itself and in positive and vacuum pressure lines. The process also includes process steps... | 06/15/1993 |
| 5215140 | Method of making a heat sink A process of making a heat sink which includes providing a mold having at least one cavity corresponding to the shape of the article, at least partially evacuating ambient gases from the cavity of the mold, filling the mold with thermally conductive casti... | 06/01/1993 |
| 5199480 | Sealed shot sleeve for vacuum die casting The apparatus has a generally cylindrically shaped rotating collar for sealing the chamber after casting material has been poured into it. The apparatus has a slidable plunger mechanism with an enlarged tip for forcing casting material through a shot slee... | 04/06/1993 |
| 5092390 | Method and mold for sand casting varying thickness articles Molten metal is cast in a cavity formed within a permanent, metal mold. The major portion of the cavity is lined with a sand liner whose thickness is reversely correlated to the thickness of the integral sections of a varying thickness cast metal article.... | 03/03/1992 |
| 4951732 | Traverse drum manufacturing method An iron metal traverse drum having extremely thin walls is formed by instantaneously injecting a molten metal into a limited cavity of a mold having a form corresponding to the traverse drum in an oxygen-free atmosphere.... | 08/28/1990 |
| 4832112 | Method of forming a fine-grained equiaxed casting A method of forming a fine grained equiaxed casting by melting metal and removing most of the superheat of the molten metal. The molten metal is placed in a mold and optionally subjected to turbulence whereupon it solidifies to form the casting of the des... | 05/23/1989 |
| 4779664 | Vertical injection apparatus for die casting machine A vertical injection apparatus for a die casting machine is disclosed. The setting is made such that a timing for vacuum evacuation applied to a portion into which air enters is suitably earlier than that for vacuum evacuation applied to a die cavity. Thu... | 10/25/1988 |
| 4612968 | Method of casting using expendable patterns A method of casting a metal article in a mould box comprises locating an expendable pattern in the box, the pattern having a gas permeable refractory coating thereon, placing and compacting unbonded particulate material about the pattern and supplying mol... | 09/23/1986 |
