Abstract: The apparatus includes a first chamber disposed about the mold cavity and defined by a top, a bottom, and walls extending between the top and bottom at the inner and outer peripheries of the first chamber. A liquid coolant is supplied under pressure to the first chamber through an inlet. A step is formed adjacent one of the corners between the top and bottom .and the inner peripheral wall of the first chamber, a circumferential groove is formed in the outer peripheral wall of the step, and an elastomeric sealing ring is sealingly engaged with the mouth of the groove to define a second chamber in the groove. Meanwhile, the shoulder of the step is spaced apart from the other corner of the first chamber, and a series of holes is formed in the shoulder to permit the coolant to pass into the second chamber at a reduced pressure. A passage then discharges the reduced pressure coolant onto a body of metal emerging from the discharge end opening of the cavity.

Abstract: Used foundry sand is regenerated with dust removed by controlled air flow from the moving sand. The density of the dust in the outgoing air is monitored while the sand is regenerated and the monitored results are utilized as control data for the regeneration.

Abstract: A low-pressure casting apparatus includes a casting mold having upper and lower molds, a lower mold platen to which the lower mold is fixed, a molten metal holding furnace which holds molten metal to be supplied to a cavity in the casting mold and is disposed in a position offset from the casting mold, a cutaway portion which is formed in the lower mold platen to open toward the furnace and a molten metal supply pipe which extends obliquely upward through the cutaway portion from the furnace to the lower mold to connect the furnace to the cavity. The molten metal supply pipe is arranged to connect the casting mold and the furnace with the molten metal supply pipe supported on a support table and the support table is provided with a pressing mechanism which presses the pipe against the furnace to connect the furnace-side end of the pipe to the furnace.

Abstract: A molten metal alloy, such as bismuth and tin, is injected into a die block to form a tightly packed rectangular array of shot pellets. The ratio of waste sprue to shot pellets is minimized and the shot pellet yield per casting is maximized by allowing the shot pellets in the rectangular shot array to touch other shot pellets in adjoining rows and columns through small interconnecting vias. The interconnecting vias allows the molten metal to flow between shot pellets, as well as from the sprue into the shot pellets. This allows the molten metal to bypass blockages that reduce the shot pellet count per casting. The flow of the molten metal through the die block is also improved by machining away a small amount of metal from the face of the die in order to form a flashing between the shot pellets.

Abstract: A wall of a mold assembly for the continuous casting of steel has a steel back-up plate. A thermally conductive plate composed of copper or a copper alloy is bolted to the back-up plate and a relatively thin copper or copper alloy facing is soldered to that surface of the thermally conductive plate which faces away from the back-up plate. The thermally conductive plate may be omitted and the facing soldered to the back-up plate. The facing contacts and cools a continuously cast strand travelling through the mold. When the facing becomes cracked or worn beyond repair, the solder joint is melted to remove the facing and a fresh facing is soldered to the thermally conductive plate or back-up plate.

Abstract: A mold for continuous casting comprises a copper or copper alloy mold substrate and a sprayed coating film formed on non-blasted inner surfaces of the substrate with or without a metal plated skin layer provided between the substrate and the film. For the formation of the sprayed coating film, particles of at least one tungsten carbide-based wear-resistant material having a particle size of from 5 .mu.m to 53 .mu.m and having a hardness capable of anchoring in the inner surfaces of the substrate are subjected to high pressure/high velocity oxygen fuel coating under conditions where the particles remain at least partially non-fused on application of heat from a spraying flame. By this, a layer directly anchored in the inner surfaces of the substrate or in the skin layer, if present, is formed at least as one layer of the sprayed coating film formed in a total film thickness of from 0.01 to 6 mm.

Abstract: Steel is continuously cast by employing a mold and a casting track. The casting track has a metallurgical length wherein the steel is substantially liquidus at one end of the length and substantially solidified at the other end of the length. At a distance along the length, the area of the cross-section of the solidifying liquid steel is reduced while maintaining the length of the perimeter of the reduced cross-section. The distance is between about 10% and about 80% of the length from the one end to the other end.

Abstract: In a mold-pressing machine with liquid-mist injection, using atomizing nozzles (9) with a vortex chamber (27) delivering atomized liquid mixed with air through outlet apertures (26), compressed air constantly being supplied to the atomizing-air nozzle (29), while the liquid nozzle (28) receives liquid under pressure through a liquid conduit (19,25), a liquid duct (31) and a slave valve (32,33) controlled by the liquid pressure solely in those periods, during which the liquid mist is desired to be injected, the new feature is that the liquid conduit (19,25) comprises a fast-acting air-escape valve (13), possibly of the same kind as those being used with pneumatic cylinders, causing any air having penetrated into the liquid duct (31) during the rest intervals because of a leak in the slave valve (32,33) to flow to an escape conduit (21).

Abstract: The machine for filling moulds with metal to be cast, in which a casing is provided comprises a fixed body and a mobile body. The mobile body is driven by a cylinder. The casing can be provided with a vacuum chamber which when closed houses, with the ability to rotate, a sand mould clamped in a central turning body of a support which can be moved by another cylinder towards a lower injector which supplies the mould with the appropriate quantity of cast metal from a lower metering store. A pressure gas is inserted into the metering store through a connection. The metering store receives the cast metal from a larger tank with the assistance of a seal controlled by a level sensor. The machine also includes a metering ladle positioned between a filling plate and the mould itself. The metering ladle has heating elements.

Abstract: An oscillator for oscillating a mold in a continuous casting apparatus has a motor, and a linkage connecting the motor to the mold. The linkage includes a pair of noncircular gears which are in mesh with one another. The noncircular gears are arranged and designed such that, during the major part of the displacement of the mold concurrently with a strand being cast in the mold, the speed of the mold exceeds the casting speed.

Abstract: The device includes a series of fixed and mobile guide tables that guide and progressively bend the strand.

Abstract: A core forming mold having at least three regions is provided and a molding sand is supplied into the core forming mold. The molding sand is hardened by an amine gas, to obtain a molding core having at least one region which has a diameter smaller than that of other regions. An iron casting mold is provided having a molding cavity therein, such that the molding core is positioned within the molding cavity of the iron casting mold. A molten iron is cast within the iron casting mold to entirely enclose the molding core.

Abstract: 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 extraction member of a high thermally conductive material contacts a portion of the mould cavity through which heat is extracted rapidly to establish positive thermal gradients in the casting and thereby promote directional solidification. The mould assembly is also provided with a seal to selectively isolate the mould assembly from the liquid metal source to allow the mould assembly to be removed from the casting station and transferred to the cooling station, providing a more efficient use of the casting station. In addition, once a shell has solidified then the mould segments and metal contained therein can be transferred to the cooling station.

Abstract: An apparatus for delivering a metered shot of molten metal from a dispensing vessel through a shot tube comprises: a dispensing vessel for holding molten metal and having a shot tube for discharge of the molten metal, a reservoir of gas for pressurizing the dispensing vessel, a variable regulator for regulating the flow of gas. The regulator has a backload for varying the pressure at which the regulator regulates the flow of gas. An exhaust vent vents the dispensing vessel to the atmosphere. A supply valves opens and closes the delivery of gas to the holding vessel.

Abstract: A roll for use in a belt caster. The roll has a plurality of axial segments, at least one of which can be adjusted to compensate for transverse distortions in the belt. Generally uniform tension is maintained transversely in the belt so that the belt remains generally planar in the portion that contacts the molten metal that is cast in the belt caster.

Abstract: A mold box has a cavity for receiving molding sand. The cavity is defined by the bottom wall of the box, by an outer peripheral wall, and a central part having a top wall disposed in a lowered plane relative to the top wall of the box. Pouring opening shaping discs and rings are releasably supported on the top wall of the central part wherein different shapes and structures of these shaping discs and rings can be substituted one for another to vary the size and shape of the sand basin pouring opening. The discs and rings also are shaped and sized whereby to provide for riser metal for the mold. A sand saver insert is capable of being employed in mold box structures that incorporate waste areas of molding sand.

Abstract: The device comprises a pressure housing for storing a gaseous medium under pressure, a pattern plate for supporting a pattern, and a molding box of height H associated with the pattern plate and defining therewith a molding space for receiving the granular molding material to be compacted. A valve separates the pressure housing from the molding space, and selectively communicates the gaseous medium in the pressure housing with the molding space for compacting the granular molding material. A mechanical compaction plate is mounted in the molding space and defines with the pattern plate a volume of dead space. An adjustment element varies the volume of the dead space.

Abstract: The mold comprises an outer mold part (10) which defines a mold cavity (11). Walls of the outer mold part form the outer surface of the combined engine block and cylinder head. There also are first and second inner mold parts (12, 13) which extend into the mold cavity and are maintained a distance from each other. Each of the first and second inner mold parts have a cylindrical portion (12a, 13a) which, during the casting procedure, forms the cylinder bores in the engine block. The first and second inner mold parts (12, 13) also each have an upper portion (12b, 13b) situated above the cylindrical portion. During the casting procedure the upper portions form portions of a combustion chamber common to the cylinder bores. The mold further includes an third inner mold part (15) which extends through the outer mold part (10) and cooperates with the first and second inner mold parts (12, 13) to form the combustion chamber during the casting procedure.

Abstract: A casting chamber has a casting plunger guided therein. In order to supply the casting plunger with lubricant on its outer circumferential surface, the casting chamber has a lubricant channel which runs round in a ring and is supplied via a feed line with lubricant which, after flowing through the lubricant channel, passes into a discharge line for the lubricant.

Abstract: An aluminum alloy is formed by continuously casting an aluminum alloy having a magnesium concentration of at least about 4.7 percent. Controlled forming and annealing steps in conjunction with the alloy form an aluminum sheet product that is useful for forming beverage container ends and tabs.