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WO/1998/033610A1 |
A semi-solid metal forming process using a cast billet and having the following steps: 1) heating the cast billet to a temperature above its recrystallization temperature and below its solidus temperature; 2) extruding the cast billet in...
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WO/1998/023401A1 |
The invention relates to a method for producing cast parts from aluminium alloy, wherein a preformed casting unit made of a gasifiable foamed material is placed in a moulding box, covered with a pourable magnetizable granulated moulding ...
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WO/1998/020999A1 |
A casting manufacturing apparatus capable of sealing joint surfaces of metallic dies without the use of any packing material. The casting manufacturing apparatus comprises at least two-split metallic dies (1, 2) constructed to define a c...
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WO/1998/018585A1 |
A method for press-forming liquid metal comprises the steps of preparing a melt, placing it into a die and processing it under high pressure. This method is characterised in that the melt is obtained in a remelt preform. When placing it ...
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WO/1998/003686A1 |
A process for producing a shaped metallic article includes the steps of melting a metal alloy, reducing the temperature of the molten metal to the liquidus temperature, casting the molten metal at the liquidus temperature into a mould an...
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WO/1997/037797A1 |
The invention concerns a casting plant and a method of producing castings. The casting plant consists of operatively and kinematically connected units in the form of linear or rotating conveying devices (1) with casting moulds (3) which ...
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WO/1997/035679A1 |
A method for simulating the flow of metal into a mould, and displaying and optimising said flow by altering the casting system in the case of gravity casting, or the parameters to be applied in the case of so-called counter-gravity casti...
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WO/1997/009137A1 |
To fill a casting tool with a metal melt, said melt is taken to the mould cavity via an annular chamber opening in the outer region of the mould cavity over its entire periphery. The metal melt feed into the annular chamber is interrupte...
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WO/1997/009140A1 |
A method of supplying a molten metal to a casting mold is improved so as to attain both the reduction of a cycle time and the improvement of the quality of a product. To meet the purposes, a molten metal is supplied from a circumferentia...
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WO/1996/027467A1 |
A casting device wherein a mold (30) is slidably disposed with the axis of a molten metal supply port (312) of the mold (30) being made vertical (10) to the sliding surface of the casting mold (30), the casting device being characterized...
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WO/1996/026030A1 |
A process of making a heat-sinking structure (5), which includes providing a mold (15) having cavities (12a) closed at one end and open at another end, the cavities (12a) corresponding to the heat dissipating surfaces on the heat-sinking...
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WO/1996/022851A1 |
The invention relates to a squeeze casting for the production of high integrity, near net shape castings. Apparatus for casting metal articles comprises a receptacle for molten metal, at least one mould cavity for casting the metal artic...
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WO/1996/017703A1 |
The liquid metal casting conduit (1) is of the type comprising an inductor (3) embedded in concrete and whose turns are asymetrical with respect to the axes (XX') and (YY') of said conduit. Application to the homogenization of the metal ...
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WO/1995/033586A1 |
The invention provides a method for forming components, such as cam-rings, having improved load bearing capacities. By using a thixoformable material, introducing it to a die (1) of the desired configuration and machining the article (6)...
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WO/1995/032826A1 |
In a method of closing the inlet (8) in a mould, a cylindrical element (14) with a through-going passage (15) is retained in the mould in such a manner that a part of the element (14) protrudes from the outside of the mould, and so that ...
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WO/1995/028244A1 |
A device for casting precision castings, the said device incorporating a chamber (20), a mould (12), and equipment (15) for generating a pressure difference between the interior and exterior of the mould. The mould is situated completely...
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WO/1995/027088A1 |
Disclosed is a practical aluminum-based alloy containing 1 to 99 weight percent beryllium and improved methods for the investment casting of net shape aluminum-beryllium alloy parts. The figure presents a current aluminum-beryllium phase...
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WO/1995/022423A1 |
Titanium based and nickel based castings are made by casting a suitable melt having a relatively low melt superheat into a mold cavity (13) defined by one or more low carbon steel or titanium mold members where the melt solidifies to for...
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WO/1995/022240A1 |
A device for preheating a metal casting channel (3). The device is positioned in a rapidly removable manner by a frame (1) consisting of a stationary portion (12) and a movable portion (26). The channel (3) comprises a refractory part (5...
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WO/1995/020449A1 |
A device for casting molten metal (3), comprising a first sealed vessel (1, 2) containing the molten metal and being connected via an injection tube (10) to a mould (8) inside a second sealed vessel (9), and a separating member (11) loca...
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WO/1995/019237A1 |
A semi-solid metal forming method comprising the steps of providing a thixotropic metal slug corresponding to the weight of metal to be used, heating slug to a semi-solid state until the liquid fraction gives the desired forming viscosit...
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WO/1995/013157A1 |
The present invention relates to a casting apparatus comprising a holding furnace (1) for holding a reservoir of molten material (2), at least one smaller pumping furnace (3) also for holding a reservoir of molten material (4) and a cast...
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WO/1995/001236A1 |
Molten metal is delivered from a master furnace (12) to the holding chamber of a low pressure casting machine (14) by a launder assembly (16) having a unitary, quickly replaceable, valve assembly (18). The valve (18) has a plug (130) mou...
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WO/1994/028821A1 |
The invention refers to the field of equipment for dental use and specifically regards vacuum caster (1) comprising a static chamber (5) into which metal crucibles (15) having differing diameters can be inserted. The caster (1) further c...
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WO/1994/020240A1 |
A vacuum suction casting apparatus of the invention injecting a molten metal into a mold through vacuum suction, comprises: (a) a vacuum vessel having at least one opening in its bottom; (b) a mold arranged within the vacuum vessel and h...
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WO/1994/004298A1 |
A high differential pressure casting method for metals of low specific gravity having an excellent non-oxidized casting surface. A high differential ultrafine casting method for metals of low specific gravity, consisting of the steps of ...
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WO/1994/004299A1 |
A method of non-oxidation casting an active metal oxide, capable of preventing the deterioration and hardening, which occur due to the oxidation of a casting, of the outer surface thereof. A method of non-oxidation casting an active meta...
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WO/1993/014045A1 |
Method for the fabrication of a refractory insulating rigid material with high open porosity which comprises mixing ceramic powders with a ceramisable binding composition, shaping said mixture by casting and dripping and finally, after d...
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WO/1993/011892A2 |
A method of casting light alloy metal products, comprising introducing the molten metal into a sand mould having a vertical parting line, characterised in that the mould is bottom filled.
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WO/1993/011895A1 |
A vacuum casting device wherein gate mechanisms (12 and 10) are closed and the interior of cavity (6) is vacuumized by a vacuum pump in a state where the sides of the gate mechanisms (12 and 10) opposite to the cavity are filled up with ...
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WO/1993/011894A1 |
In a method of casting, in which molten metal (2) is caused to flow upward into at least one casting cavity (8) through a delivery tube (5) - this flow in the example shown being induced by applying vacuum to the tops and possibly sides ...
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WO/1993/007977A1 |
A method of vacuum casting, wherein pressure in the cavity of a mold is reduced beforehand, molten metal is temporarily stored in the molten metal reservoir and, under such conditions as above, a gate having blocked the cavity from the m...
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WO/1992/017296A1 |
The invention relates to a process for casting metals, especially alloys with a low melting point, in which the liquid metal is introduced into a mould (3) from below via a casting channel (4) and an inlet aperture (5) arranged at the lo...
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WO/1992/015414A1 |
The invention allows to obtain high-quality forged mouldings for technological equipment: moulds and dies. The method provides for feeding the metal into a metal receiver, moving it from the metal receiver to a matrix and crystallizing i...
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WO/1992/007674A1 |
The invention disclosed is a mould assembly for casting metal objects. The mould assembly comprises mould segments of generally non-thermally conductive material which define a mould cavity for receiving liquid metal through at least one...
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WO/1992/005900A1 |
A method and a device (1) respectively of press casting, a liquid metal (49) being poured into a filling chamber (20) to be influenced in this chamber by a lower piston (43) and an upper piston (18), which are mounted on a lower machine ...
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WO/1991/008849A1 |
Al base-Si hypereutectic 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 mould in critical areas, to remove or pr...
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WO/1991/001832A1 |
The invention relates to a low-pressure chill casting process for producing metal castings, e.g. cylinder heads or engine blocks of internal combustion engines or the like, the walls of which are much thinner in some areas than in others...
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WO/1991/001833A1 |
The invention relates to a device and a process for controlling and regulating the mould filling rate and casting pressure of a low-pressure chill casting machine, preferably for casting aluminium. The furnace chamber containing the molt...
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WO/1990/015680A1 |
Process and device for low-pressure casting into a mould in a vacuum in which the speed and pressure development characteristics of the metal while it is being poured are controlled at all stages and at all times to meet predetermined va...
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WO/1990/008610A1 |
In order to simplify and improve the results of a process for manufacturing a casting, in particular of aluminium, provided with a porous insert (2), in which the insert (2) is surrounded by molten metal in a casting mould (1) and the mo...
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WO/1990/008003A1 |
The device for mounting and cooling the graphite block (1) of a mould wall, in particular for pressure casting metalurgical products, comprises lower and upper means for mounting said block (1) onto the frame (7). The lower mounting mean...
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WO/1990/007995A1 |
The mould frame comprises at least one rigid transversal structural element (37) placed in a zone essentially remote from the ends of the frame. The transversal element (37) comprises two terminal parts (37a, 37b) between which are place...
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WO/1990/007998A1 |
This device (27) for suspending an upper spacer (20) is carried by a longitudinal beam (40) for clamping the walls (25) of the mould (5), whereby each wall (25) consists of a support frame (30) and a graphite block (31); the spacer (20) ...
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WO/1990/008000A1 |
The lower structure of the mould comprises an intermediate beam (26) freely borne by the frame (83) whose upper surface opposite the surface resting on the frame (3) carries the lower spacer (4) which is mounted by clamps (37) onto the b...
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WO/1990/007999A1 |
The spacer comprises a body (20) made from a single, hollow metallic part having a U-shaped cross section. The concave part of the cross section is directed towards the rear and the front side (20a) of the hollow body corresponding to th...
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WO/1990/008002A1 |
The device for introducing liquid metal into the mould (1) of a casting plant subjected to continous pressure comprises a vat (2) provided with a cover (7) carrying a casting tube (3), whereby said vat rests on a base (4), and comprises ...
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WO/1990/007996A1 |
The method is implemented in a mould comprising two side walls (25) consisting each of a support (30) and of a graphite block (31), as well as a plurality of struts of which an upper strut (20) is interleaved between the blocks (31); the...
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WO/1990/000101A1 |
Molten metal in a closed reservoir (1) is forced by gas pressure applied to its surface (26) to flow smoothly up a riser tube (6) and replaceable pouring nozzle (17) into a mould (20). When the mould has been filled, the entire assembly ...
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WO/1989/007879A2 |
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