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WO/1995/029778A1 |
A method for casting long thin metal articles (10) is described. A particular embodiment is directed to the casting of seals that are used in the low pressure turbine section of a gas turbine engine. The method first involves forming a m...
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WO/1995/029802A1 |
A method of injection molding for use with an injection molding machine (10) includes: (a) generating pressurized gas and pressurized moisture within molten plastic as plastic pellets are plasticized in the injection molding machine (10)...
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WO/1995/026244A1 |
Liquid metal is introduced into mould cavity (26) of mould (24) when the latter is either within pressure vessel (10) or before it has been introduced into the latter. The pressure vessel (10) is sealed by means of the lid (18) and the m...
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WO/1995/023660A1 |
The proposed improvements in metallurgical conversion according to the invention involve the production of a semi-finished product (a mixed blank) in the form of an ingot through casting in a mould of a casting facility from a solid fill...
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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/1995/020445A1 |
The invention relates to a process and a continuous casting facility for the production of thin slabs, preferably of steel with a predetermined congealing thickness of (for example) 50 mm. In the said process, an optimal casting surface ...
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WO/1995/018689A1 |
In a mould (1) with vertical parting surface, each mould cavity (2, 2') is connected through a wide throat with its own after-feeding reservoir (3, 11). When the mould (1) has been poured, a gas pressure is applied through a duct (15, 19...
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WO/1995/013154A1 |
A method and a device for braking the movement of a melt in non-solidified portions of a cast strand during casting of metal. Melt flows into a mould which comprises four copper plates (2, 3) which form a downwardly open casting mould wi...
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WO/1995/009710A1 |
A method and apparatus for casting a metal wheel (50) having a wheel disk formed across a wheel rim (51). Forced cooling is applied to a wheel casting mold (80). The forced cooling controls the cooling of the molten metal in the mold cav...
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WO/1995/005490A1 |
A process is disclosed for producing a grain-refining agent for metallic casting materials. The grain-refining agent is heated until all its constituents are melted and is then cooled. The cooling rate lies between 103 and 106 K/s. The t...
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WO/1994/029050A2 |
The invention relates to a process and devices for casting components in metal alloys on the tilt casting principle in which a quantity of melt metered for casting is spread over a large gate cross section without turbulence from a melt ...
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WO/1994/027763A1 |
The present invention relates to eutectic alloy systems, such as white irons, in which a primary phase grows out of the melt when the melt is cooled below the liquidus temperature and comprises pouring the molten metal alloy at a tempera...
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WO/1994/026447A1 |
An apparatus and method for producing a rapidly solidified ingot characterized by a fine scale microstructure capable of precipitating uniformly dispersed fine particles. A charge of material (26) is placed in a crucible (14) and heated ...
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WO/1994/021405A1 |
Casting aluminum-lithium based alloys under a salt cover (25) involves forming a molten aluminum-lithium alloy, transferring the molten aluminum-lithium alloy to a casting station (3), and direct chill casting the aluminum-lithium alloy,...
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WO/1994/011134A1 |
Molten metal, in the gap (35) between two counter-rotating rolls (31, 32) of a continuous strip-casting apparatus, is prevented from leaking out of an open side (36) of the gap (35) by a magnetic confining apparatus (30) employing the pr...
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WO/1994/002272A1 |
An improved squeeze casting process is utilized to produce metal castings having superior mechanical properties. The process is particularly adapted for use in a vertical casting machine (10) and is characterized by vacuum ladling, vacuu...
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WO/1994/002270A1 |
A method according to the invention consists in that the casting is formed in a non-uniform field of forces of a rotating crystallizer with a gravitation coefficient equal or exceeding ten, and the melt is cooled down through its whole v...
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WO/1993/023187A1 |
A stream (6) of superheated molten metal is deposited from a container (9), in a consolidated form by means of a pouring nozzle or separated into drops by a gaseous medium, at a casting point (5) on the inner surface of a wound strip or ...
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WO/1993/022088A1 |
A method of casting an article in a thermosetting material utilising a mould (M1) having a casting cavity (1a_) corresponding to the configuration of the item to be cast, and a reservoir cavity (6, 7) communicating with the casting cavit...
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WO/1993/020969A1 |
The invention relates to a method for manufacturing a single-piece cast product having an inhomogeneous distribution of the graphite crystals in vermicular and nodular form in different parts of the finished cast product. This is achieve...
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WO/1993/020968A1 |
High-quality castings are formed by: (a) placing a molten material (2) in contact with a first electrode (3) formed from a conductive material and a second electrode (4) formed from a semiconductive metal oxide, and (b) passing an electr...
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WO/1993/005908A1 |
A method of producing a chilled iron camshaft from a chromium containing cast iron is described. The cast iron material contains between 0.5 wt % to 1.2 wt % of chromium, the camshaft having a white iron structure adjacent chill inserts ...
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WO/1993/005911A1 |
In the disclosed embodiments, vacuum casting of metal ingots (28) is effected by melting metal in a hearth (10), directing molten metal (13) from the hearth (10) through a hearth outlet (18) to one of a series of mold segments (20) posit...
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WO/1993/000189A1 |
The proposed method consists in accumulating a portion of metal corresponding to the volume of the casting and feeding that portion simultaneously with subjecting it to the travelling electromagnetic field. The device comprises a casting...
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WO/1992/021458A1 |
A method for producing metal matrix composites, in a continuous or batch mode, including the steps of placing a substantially liquid metal in the vicinity of a reinforcement material and the source of a transient magnetic field sufficien...
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WO/1992/019400A1 |
A process is disclosed which includes forming a porous solid article (29) comprising the steps of: providing a base material (22); heating said base material (22) to cause said base material to melt to a liquid phase; exposing said liqui...
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WO/1992/009389A1 |
A method of making an essentially void-free, cast silicon and aluminum product (24) wherein silicon and aluminum components in solid form are placed in a receptacle (18), heated to completely melt the components and thoroughly and unifor...
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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/1992/001818A1 |
In the particular embodiments described in the specification, a vacuum furnace includes a conveying arrangement for holding four solid metal members (16, 22) with their end faces (18) in closely-spaced relation and an energy beam gun (11...
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WO/1992/001821A1 |
A cast composite material is made from particles and a matrix alloy preselected composition that is difficult to wet to the particles. A wetting alloy having a composition that readily wets the particles is first mixed with the particles...
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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/1991/006386A1 |
A process is described for producing castings comprising the steps of introducing a charge of molten metal, e.g. aluminum into a mould, cooling the molten metal in the mould until the outer layer of the metal solidifies and contracts lea...
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WO/1991/003338A1 |
The invention relates to a process and a device for casting metal rods or the like in bag casting using an ingot mould (1) which sinks into a liquid bath (5) as it is being filled with the casting metal. The ingot mould pipe (1) is fille...
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WO/1991/002100A1 |
An aluminium base-silicon hypereutectic casting alloy with Si 12-15 wt.% has (a) elements A in wt.%, Cu 1.5-5.5, Ni 1.0-3.0, Mg, Fe each 0.1-1.0, Mn 0.1-0.8, Zr 0.01-0.10, Zn 0-3.0, Sn, Pb each 0-0.2, Cr 0-0.1, Si modifiers Na 0.001-0.01...
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WO/1990/013382A1 |
A ladle arrangement intended for use when treating a metal melt, in which gas or gas/powder mixture is delivered to the melt (2) which substantially fills the ladle (1), and departing gases are extracted by suction through a hood mounted...
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WO/1990/013374A1 |
A process is described for forming castings using non-bonded (loose) moulding media, e.g. an evaporative pattern casting process. According to the novel feature, a very significant improvement can be achieved in the cooling and solidific...
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WO/1990/008933A1 |
The invention relates to a shield (3) for electromagnetic agitators (1) to protect such agitators against high temperatures, spill and spatter of liquid metal or slag, and against mechanical strain. The shield is dismountable and is buil...
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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/1990/007999A1 |
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/1990/000101A1 |
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/1989/009667A1 |
Disclosed are process and apparatus for use in the direct casting of metal strip (14) from molten metal deposited on a moving chill surface (12) from a tundish (10) having a floor (30), opposed upwardly extending sidewalls (32, 34), an e...
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WO/1989/004224A1 |
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 (24) and a directionally solidified grain structure in an integral bla...
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WO/1989/002326A1 |
A method of casting utilizing an evaporable foam system with a hypereutectic aluminum silicon alloy. The alloy is composed by weight of 16 % to 19 % silicon, 0.4 % to 0.7 % magnesium, up to 1.4 % iron, up to 0.3 % manganese, up to 0.37 %...
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WO/1988/007594A1 |
An abrasion-resistant composite roll and a process for its production are disclosed. The roll comprises an outer layer composed of an iron-based allow containing at least one carbide of W, V, Nb, Ti, Ta, Zr and Hf crystallized from molte...
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WO/1988/006501A1 |
Casting moulded metal parts (4') involves pouring molten metal into at least one pouring inlet (6) disposed within the area of the upper side of a casting mould (1), said inlet being connected with the lower area of the moulding cavity (...
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WO/1988/001210A1 |
A casting powder for use in ingot steel production through bottom pour process. The powder combines the crucial properties of existing bottom pour fluxes and hot topping compounds into a single, easily dispensed mixture. The present inve...
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WO/1987/006957A1 |
Method of producing a thixotropic material which consists of deforming a fully solidified metal or metal alloy below its temperature of recrystallisation by cold or warm working such as extrusion or rolling. The deformed material is then...
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WO/1987/006624A1 |
A method and apparatus for preparing cast composite materials of non metallic particles in a metallic matrix, wherein particles are mixed into a molten metallic alloy to wet the molten metal to the particles, and the particles and metal ...
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WO1987004378A1 |
An apparatus (10) for manufacturing solidified metallic forms (18) from levitated molten metal (14) including a levitation conduit (12) having an interior surface for accommodating the metal to be levitated, and a device (34) for introdu...
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