Abstract: A bottom heated holder furnace (12) for containing a supply of molten metal includes a storage vessel (30) having sidewalls (32) and a bottom wall (34) defining a molten metal receiving chamber (36). A furnace insulating layer (42) lines the molten metal receiving chamber (36). A thermally conductive heat exchanger block (54) is located at the bottom of the molten metal receiving chamber (36) for heating the supply of molten metal. The heat exchanger block (54) includes a bottom face (65), side faces (66), and a top face (67). The heat exchanger block (54) includes a plurality of electrical heaters (70) extending therein and projecting outward from at least one of the faces of the heat exchanger block (54), and further extending through the furnace insulating layer (42) and one of the sidewalls (32) of the storage vessel (30) for connection to a source of electrical power.

Abstract: A closed system and method that includes a source of pressurizeable molten lead connected to a mold having a mold cavity therein with the mold maintainable at sufficiently low temperature so that a charge of molten lead located in the mold cavity solidifies to thereby form a solidified casting in the mold cavity. A housing having a runner, is maintainable at sufficiently high temperature to maintain the molten lead in a molten state so that the mold cavity can be refilled with a fresh charge molten lead when a solidified casting is removed therefrom without introducing air to the closed system. A shut-off valve, having an open position to allow a charge of molten lead to flow into the mold cavity and a closed position to prevent molten lead from flowing out of the runner as the molten lead in mold cavity solidifies with the shut-off valve configurable to intensify the pressure of the lead in the mold cavity.

Abstract: The present invention provides improved heated manifolds, heaters and nozzles for injection molding, having a high strength metal skeleton infiltrated with a second phase metal having higher thermal conductivity. Also disclosed is method of forming a manifold, heater or nozzle preform and infiltrating the preform with a highly thermally conductive material. The invention also provides a method of simultaneously infiltrating and brazing injection molding components of similar or dissimilar materials together.

Abstract: The vacuum induction melting system of the present invention is designed to be operated in a continuous or semi-continuous manner for extended periods of time for increased efficiency, and makes it possible to easily and quickly remove the induction furnace from the melt chamber when it becomes necessary to replace and rebuild the furnace. The melting system includes a melt chamber which forms an airtight enclosure, with an induction furnace located within the melt chamber. A charging chamber is communicatively connected to the melt chamber adjacent its upper end. The charging chamber includes a door providing access to the interior of the charging chamber so that a charge of raw materials can be placed therein. An isolation valve is located between the melt chamber and the charging chamber and is movable between open and closed positions.

Abstract: In order to increase casting production during a filling of a mold from below, an uptake for the casting mass is provided in molding sand of the mold. Immediately after the filling of the mold has been concluded, a part of the uptake which extends in the molding sand is interrupted and thus closed off so that the mold can be immediately separated from the casting container.

Abstract: The present invention provides a composite immersion nozzle, by which it is possible to reduce thermal stress on the nozzle and to prevent occurrence of cracks, whereby there is no restriction on properties of the materials such as thermal expansion coefficient, while fully utilizing properties required for each of the materials such as corrosion resistant property, property to prevent alumina build-up on the nozzle, etc. In an immersion nozzle comprising two types or more of materials, a material having higher thermal expansion coefficient than that of the nozzle main body is arranged on inner side of the nozzle, and a ratio of thickness of the material arranged on the inner side to total thickness of the nozzle is less than 25%.

Abstract: In order to increase casting production during a filling of a mold from below, whereby an uptake for the casting mass is provided in the molding sand of the mold, immediately after the filling of the mold has been concluded a part of the uptake, which part extends in the molding sand, is interrupted and thus closed off so that the mold can be immediately separated from the casting container.

Abstract: A casting wheel (10) for use in filling ingot molds (36) of an ingot mold line has a wheel member (12) comprising a hub (14) and a plurality of spouts (20). The wheel member (12) has a central region (18) and is mounted by the hub (14) for rotation on an axis of rotation. The spouts (20) are formed from sheet metal and are integral with the hub (14). The spouts (20) extend outwardly from the central region (18) in an angularly spaced array and each spout has an inlet end (23) adjacent the central region (18) and an outlet end (24) remote from the hub (14).

Abstract: Continuous casting machine for the casting of a thin slab with a thickness of less than 150 mm comprising a vacuum tundish having a first atmospheric chamber (7) and a second low pressure or vacuum chamber (1) hydraulically connected to the first chamber and purging means (11) for introducing a purging gas into the liquid steel after it has entered the first chamber but before it entered the second chamber.

Abstract: An automatic molten metal supply and injection device which can prevent mixing of air into molten metal being supplied, which can reduce the possibility of explosion and the development of pores, and which makes it possible to supply molten metal irrespective of whether the molds are open or closed. The device includes a body for guiding molten metal, a sleeve having a suction port and a discharge port for opening and closing communication between a molten metal passage of the body and the suction port, a first piston axially movably mounted in the sleeve for sucking molten metal in the sleeve into a predetermined amount through the suction port and extruding the thus sucked molten metal through the discharge port, and a second piston axially movably mounted in the first piston for opening and closing the discharge port and for pressurizing molten metal being discharged through the discharge port. The first and second pistons are movable independently of each other.

Abstract: In an arrangement of an ingate system with feeding reservoir for feeding castings, preferably in moulds with pouring form the bottom (ascending casting), with which ingate system at least a feeding reservoir is connected. The ingate system is connected to one or a number of mould cavities least one feeding reservoir (7) is provided consituting a widened part of a duct (4) or a part of a duct in the ingate system (1), and that a partition (6) consisting of a gauze screen (6) or equivalent is provided separating the feeding reservoir (7) and the duct (4).

Abstract: A casting plant for low-pressure casting of molten metal with operatively and kinematically connected units in the form of linear or revolving conveying devices.

Abstract: The apparatus comprises at least one flowing furnace with which at least one handling unit cooperates, the handling unit being selectively connectable to a respective die. The at least one handling unit is associated with a guide for horizontal translatory motion between a casting position, which lies above the at least one furnace, and a discharge position. The at least one furnace can move vertically in order to couple and uncouple with respect to the corresponding die connected to the at least one handling unit.

Abstract: An apparatus for and method of pouring molten metal from a refractory vessel into the sprue of a mold where the vessel is in contact with the sprue. Molten metal is poured through the orifice of a nozzle in the bottom of the vessel. Laminar flow and velocity of the molten metal through the orifice are controlled by a stopper that extends from the orifice and also displaces molten metal in the sprue of the mold when the stopper is in the closed position to minimize excess buildup of solidified metal in the volume of the sprue. Filtering of dross can be accomplished in the refractory vessel and heating means can be provided to hold the molten metal at the appropriate temperature.

Abstract: Method and simplified apparatus for manufacturing aluminum alloys castings, for example those cast aluminum parts utilized in the manufacture of automobile engines: cylinder heads, engine blocks and the like; whereby the castings are cast in a plurality of semi-permanent-type molds, said molds each being movable to a plurality of processing positions along one of a plurality of preferably straight line paths (five in the preferred embodiment), wherein the operations of cleaning, core setting, casting, and casting extraction are performed on each mold at predetermined positions along its respective path and alternating said operations among the molds in order to permit minimization of the number of robot equipment and to increase the aggregate productivity of said molds, since any one processing operation can be handled by only a few (and preferably only one) robot arm moving across a plurality of mold paths (preferably seriatim), so that a given process step is performed at any one time only at one (or at lea

Abstract: A ceramic investment mold is disposed in a casting chamber and communicates with a pour cup melt reservoir connected to the mold and having a reservoir volume for holding enough melt to fill the mold. The melt pour cup reservoir is communicated to the mold via an inverted loop feed gate so that the melt is fed from a lower region of the reservoir through the inverted loop feed gate to the mold upon gas pressurization of the reservoir. The loop feed gate is configured to have a loop region above the melt level in the reservoir so as to prevent melt flow from the reservoir to the more mold cavities in the absence of reservoir pressurization. While residing in the pour cup reservoir, oxides and other inclusion-forming particles in the melt can float to the upper surface of the melt, whereby the melt fed from the lower region of the reservoir to the mold via the inverted loop melt feed gate includes reduced amount of inclusion-forming particles.

Abstract: A method and apparatus for supplying molten metal to a die-casting machine. Metal is received from a smelter in a road-going vessel. A burner is lowered into an opening in the road-going vessel to direct heat into the road-going vessel to maintain the molten metal within the road-going vessel at a suitable temperature. Molten metal is transferred from the road-going vessel to a die-casting machine without substantial re-refining. Preferably the molten metal is transferred directly to a die-casting machine using a covered launder system connectable to the road-going vessel to shield the molten metal from atmospheric contact.

Abstract: A method and an apparatus for controlling an injection of a die-casting machine, the apparatus having an open-shut valve for opening and shutting a hydraulic channel through which hydraulic fluid is discharged from a boost cylinder device and a boost cylinder flow-control valve for regulating a flow of the hydraulic fluid discharged from the boost cylinder device. When a highly viscous molten material is injected toward a casting mold and the molten material reaches a gate of the casting mold, an injection resistance is increased. At this time, by regulating the hydraulic channel with the control valves to discharge the hydraulic fluid in accordance with a predetermined program, the boost cylinder device applies further pressure to the injecting piston to assist injection process, thereby preventing inappropriate change in injection speed. Consequently, the open-shut valve is opened to conduct ordinary pressure boosting pressure process.

Abstract: A method for fabricating bushings for lead-acid cells or batteries is provided which is amenable to automation and control and provides relatively porosity-free bushings comprising utilizing a mold having a cavity in the configuration of the bushing desired and a lead fill unit comprising a lead pot with the molten lead alloy for the bushing and a heated fill line and/or heated fill block wherein the mold and lead fill units are moved into alignment, heating such as induction heating to cause the solidified molten alloy at the end of the heated fill line or in the heated fill block orifice to become molten, gravity filling the mold and then moving the mold and lead fill unit out of alignment, the bushing preferably being cast in an upside-down orientation so as to minimize gas entrainment and/or particulate contamination.

Abstract: An installation for eliminating impurities during casting of metals, comprising at least one casting ladle (2) which forms an outlet siphon (3) and can tilt around a transverse axis (14). Starting from the siphon (3), the casting ladle (2) is prolonged by a conduit (4) which ends at a scum-retaining pan (5), wherein the conduit forms a single piece with the ladle and the pan. The pan (5) has outlet orifices (7) at the bottom and is externally lined with a ceramic cloth (10) which acts as a filter for retention of impurities.

Abstract: In a bottom-pouring casting apparatus having a holding tank, a ladle in the tank and a tank cover, which seals the ladle in the tank, a pouring tube and holding casting are disclosed for mounting on and through the tank cover to provide the pouring tube in the molten metal of the ladle, which tube and holding casting are have similarly tapered outer and inner walls for mating at assembly thereby utilizing gravity and mechanical pressure on the tube holding assembly to more tightly secure the tube agains the holding casting to avoid driving the tube from the holding casting and rendering it inoperable.

Abstract: The casting apparatus has a holding furnace for holding a reservoir of molten material, at least one smaller pumping furnace also for holding a reservoir of molten material and a casting cavity connected to the pumping furnace by one or more feed pipes. The pumping furnace is provided with a pressurizing assembly for applying a pressure to force the molten material from the pumping furnace into the casting cavity. The pumping furnace and holding furnace are contiguous and are connected by a non-return valve which prevents the flow of molten material from the pumping furnace to the holding furnace during pressurization but which allows the flow of molten material from the holding furnace to the pumping furnace after pressurization.

Abstract: For charging casting machines with non-ferrous molten metals, melt (S) is supplied from a withdrawal chamber (6) of a melting furnace (1) having a gas atmosphere to the filling hole (18) of a casting machine. To achieve an economic, easily dosable charging of the melt, the metered melt (S) is pumped up inside the withdrawal chamer (6) via a metering pump (12) and is drained towards the filling hole (18) via a discharge pipe (15) extending through the furnace wall, where through inlet nozzles (11) opening into the withdrawal chamber (6) a pulsed supply of gas to the withdrawal chamber (6) is effected to support the melt flow.

Abstract: Squeeze casting of high integrity, near net shape castings is performed in a mould cavity defined by cooperating die parts which are movable with respect to each other and have a separation distance which is selected to define a predetermined cavity volume for the cast article. A conduit has a first end connected to an entrance in the lower die part of the mould cavity and a second end connected to a receptacle which contains molten metal. Molten metal is transferred upwardly from the receptacle through the conduit to fill or substantially fill the mould cavity. The entrance to the mould cavity is sealed, and pressure is applied on the die parts to further reduce the cavity volume during solidification of the metal in the mould cavity.

Abstract: In a string of molds (32) with vertical parting surfaces, each mold cavity (35) is connected through a wide throat with its own after-feeding reservoir (36). When the mold has been poured, a gas pressure is applied through a channel (43) and a passage (41) to a lower metal surface in the after-feeding reservoir (36). This gas pressure is not allowed to exceed the metallostatic pressure in the mold at the surface, at which the pressure is applied, until the metal in the ingate (37) has solidified or the ingate has been blocked in some other way. At the location where the passage (41) opens into the after-feeding reservoir, it is covered by an element (42) that is impermeable to the metal having been poured but permeable to the pressurized gas. When the metal in the ingate (37) has solidified or the ingate has been blocked in some other way, the gas pressure may be increased.

Abstract: A low-pressure casting apparatus is provided wherein molten metal can be precisely cast even into a casting mold of a comparatively small capacity, not to mention a casting mold into which a large capacity of molten metal is to be cast, and wherein the casting mold is accurately pressurized. The casting mold, into which a large capacity of molten metal is to be cast, can be cast by connecting at least two crucibles to the casting mold via at least two stalks and at least two connection mechanisms, and by connecting at least two molten-metal holding furnaces to the pressurized-gas supply means via at least two connecting mechanisms, after the pressure chambers of the holding furnaces are made to communicate with each other via the communication mechanisms.

Abstract: Method and simplified apparatus for manufacturing aluminum alloys castings, for example those cast aluminum parts utilized in the manufacture of automobile engines: cylinder heads, engine blocks and the like; whereby the castings are cast in a plurality of semi-permanent-type molds, said molds each being movable to a plurality of processing positions along one of a plurality of straight line paths (five in the preferred embodiment), wherein the operations of cleaning, core setting, casting, and casting extraction are performed on each mold at predetermined positions along its respective path and alternating said operations among the molds in order to permit minimization of the number of robot equipment and to increase the aggregate productivity of said molds, since any one processing operation is handled by only one robot arm moving between the plurality of lines seriatim, so that a given process step is performed at any one time only at one of the plurality of lines.

Abstract: A casting device for counter gravity casting of a light-metal alloy avoids local expansion of the mould cavity. The device includes a pump for conveying molten light metal from a holding furnace through a reservoir via a nozzle to an inlet system in a mould in order fill the mould cavity. The mean cross-sectional area of the reservoir is substantially greater than the mean cross-sectional area of the inlet in the mould. The length of the reservoir constitutes a major portion of the distance between the pump and the mold.

Abstract: A bath of molten metal is provided, from which a flow is removed. The flow circulates through an unheated conduit to a selected location remote from the bath, and then back to the bath. A depending conduit portion having a heated valve is provided at the selected location. Operation of the valve allows a predetermined amount of the molten metal to be directed into a casting mold.

Abstract: Light alloy metal products are cast by introducing the molten metal into a sand mold having a vertical parting line, characterized in that the mold is bottom filled.

Abstract: A cylindrical element (14) with a through-going passage (15) is retained in the mold in such a manner that a part of the element (14) protrudes from the outside of the mold, and so that the passage (15) opens into a part of the runner (8) of the mold, the internal terminal surface of element (14) lying opposite a plane surface (16) in the runner (8). During casting, the nozzle (13) of a casting device is brought into tight-fitting abutment against the outer end of the element, and the molten metal alloy is cast into the mold through the nozzle (13), the passage (15) in the element (14) and the runner (8) of the mold.

Abstract: Molten metal is delivered from a master furnace to the molten metal holding chamber of a low pressure casting machine by a launder assembly having a unitary, quickly replaceable, valve assembly including a valve which, when closed, prevents flow of the molten metal from the master furnace to the holding vessel. The valve has a plug mounted for rotation in a valve body which may be made from graphite. In a modification, the valve has a port centered in a valve plate and a movable plug which may be made from aluminum titanate. In operation, the valve is opened to permit the molten metal within the master furnace and the holding vessel to seek a substantially uniform level and closed when the low pressure casting process is initiated. While the valve is closed, a pressurizing gas is introduced into the holding vessel above the level of the molten metal therein so that molten metal will rise up a riser tube into the cavity of a mold or other molten metal-receiving member.

Abstract: In an arrangement for supplying steel from a base outlet of an intermediate vessel (2) in a continuous casting installation, the intermediate vessel (2) is provided with an outlet block (3). Beneath the outlet block (3) there is arranged a first change-over part (6) which is movable transversely to the discharge direction (4) and can be pushed out of the casting position by a moving arrangement (30) and a second change-over part (38). An arrangement of this type is to be improved in such a way that the casting nozzle body has a longer service life and is cheaper to produce. Furthermore, security on the casting platform is to be improved during interruptions in casting, the extraction speeds during continuous casting are to be altered and the positional accuracy of the outlet block is to be increased. For this purpose, the change-over part (6) is made up of a holding frame (12) and a casting nozzle body (11). The holding frame (12) is guided and positioned on guide strips (14) in guide rails (7, 7').

Abstract: A sand mould has a filling inlet defined by a solid insert (7). The insert provides a flat outer face for sealing and subsequently heat exchanging sliding contact with a sealing face of a chill plate (11). The mould is filled through the insert and then closed by means of the chill plate.

Abstract: Apparatus for casting metals, especially alloys with low melting points, has a melt container which is connected to a mold via a casting line. A standpipe branches off from the casting line in the melt container. The melt is covered by an inert fluid blanket and the level of melt in the melt container is monitored and maintained such that at least a portion of the standpipe is surrounded by the melt. An overflow valve selectively opens or closes an overflow hole in the standpipe, the overflow hole being immersed in the inert fluid, to adjust the level of melt in the casting line.

Abstract: A casting nozzle joint structure capable of easily positioning and jointing a nozzle without any holder for fixing and supporting a continuous casting nozzle therethrough. The joint structure comprises fitting mechanism formed in and on the mating faces of the continuous casting nozzle and the pressure clamper. The fitting mechanism includes a convex portion and a concave portion formed in and on the mating faces of the continuous casting nozzle and the pressure clamper so that they fit one another. The concave or convex portion formed in the mating face of the continuous casting nozzle is fitted on or in the convex or concave portion formed in the mating face of the pressure clamper, and this pressure clamper clamps the fitted engagement. Thus, the nozzles can have their outlet bores positioned, and the submerged entry shroud can have its discharge port oriented.

Abstract: Apparatus for heating and pouring metal and metal alloys. A metal melting and pouring apparatus suitable for graining the molten material is described. A graphite crucible having at least one exit orifice in its lower, tapered portion, a graphite barrier plate or disk having a plurality of orifices located within the crucible on the tapered portion thereof, and an element for heating the apparatus to temperatures sufficient to melt the metal, have been found to produce a steady stream of consistent droplet-size molten metal, while maintaining a choosen level of liquid metal in the crucible to prevent less dense impurity materials from passing through the exit orifice(s) of the crucible, and to improve the efficiency of melting additional metal subsequently introduced into the crucible.

Abstract: The machine has a holding pot containing molten magnesium in which a pumping chamber is submerged, a filling port is provided through a bottom wall of the pumping chamber, defined at least in part by a cylindrical wall surface, and an axially moveable control rod with a cylindrical shut-off part is moved between a position at which it is within the confines of the cylindrical wall surface and a position at which it is free of that wall surface. The clearance of the cylindrical wall surface and the cylindrical shut-off part of the control rod is such as to permit free movement of the rod part through the port, but, by virtue of the wetting of the surfaces by the molten magnesium, to seal the port against the pressures applied to it.

Abstract: A die for use with a die casting machine comprised of a left hand die half, a right hand die half, in which the die halves close on a part line, an injection nozzle seat, an injection fluid inlet, a runner and a cavity, the invention comprising a left hand die half having a protrusion extending over the part line when the die halves are closed, the top of the protrusion forming the base of the injection fluid inlet when the die halves are closed, the bottom of the protrusion is spaced from the upper surface of the lower part of the right hand die half

Abstract: A casting conduit (5) is attached at a low-level location to a completely sealable furnace (1) for a casting material (2). At this connection, the furnace is provided with an outlet opening (4) which is capable of being closed by a shutter (3). The casting conduit (5) leads down to a mold chamber (6) in which the mold (7) is located. The casting conduit (5) is closed, e.g. in the manner of a tube, and can be connected by a vacuum connection (8) to a vacuum installation together with the mold chamber (6). When the vacuum in the furnace (1) and in the casting conduit (5) resp. the mold chamber (6) is equivalent, the outlet opening (4) can be opened by means of the shutter (3), and the casting material (3) can flow into the mold chamber (6) and into the mold (7) via the casting conduit (5).

Abstract: A system and a metering assembly are both disclosed, and both relate to reducing the vortexing which can occur during the outflow of molten metal from a holding reservoir to a mold during casting operations. The system includes a first molten metal holding and pouring box with first predetermined dimensions, a second molten metal holding and pouring box with second predetermined dimensions which are less than said first predetermined dimensions and which is positioned relative to said first molten metal holding and pouring box to receive a flow of molten metal therefrom, a first flow control device for controlling the outflow of molten metal located at the bottom region of the first molten metal holding and pouring box, an antivortexing insert located in an inlet portion of said first flow control device for controlling the outflow of molten metal and in direct contact with the molten metal in said holding and pouring box.

Abstract: A supply vessel containing a molten bath has a discharge opening which is controlled by a valve. The discharge opening is located in a vertical plane and has a horizontal axis. The valve includes a set of valve plates having through openings for the passage of molten material. The valve plates are rotatable relative to one another in order to bring the through openings into and out of register and thus open and close the valve. One of the valve plates sits adjacent the discharge opening and is stationary while another of the valve plates is remote from the discharge opening and is freely rotatable. A mold having an inlet, a casting cavity and feeders between the inlet and casting cavity is brought into engagement with the freely rotatable valve plate. The mold is positioned with the casting cavity below the upper surface of the molten bath and with the feeders below the casting cavity. The valve is opened and the casting cavity filled with molten material via the mold inlet and the feeders.

Abstract: This invention relates to apparatus for assembling battery plates and includes mould, generally indicated at 10 which defines a pair of ducts 11, 12 which supply respective sets of mould cavities 13, 14 via weirs 15. Each feed duct 11,12 has a respective pair of feed passages 16, 17 and 18, 19 extending beneath it and is interconnected to the respective feed passages by generally vertical passages 20, 21. The feed passages 16-18 are fed by a pump.

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: Disclosed is a contact pouring vessel and method for pouring molten metal directly into a mold. A pouring vessel holds the molten metal in a molten state. A nozzle within the pouring vessel and having an orifice enables the molten metal to pour from the pouring vessel. A stopper rod is raised or lowered to either seal the orifice or permit the molten metal to flow out the pouring vessel. A rotating cutter cleans the bottom of the nozzle each time a mold is filled to prohibit an unwanted buildup on the nozzle. Four hydraulic cylinders and a hydraulic system are used to controllably raise and lower the pouring vessel. The pouring vessel is raised to accommodate the positioning of mold adjacent the nozzle and lowered to position the nozzle flush with the mold.

Abstract: Apparatus for supplying melt from a melt-holding vessel to a casting machine comprises a ceramic melt pump casing or housing submersible in the melt. The casing includes a melt-pumping chamber with a melt inlet and melt outlet and a piston-receiving bore communicated to the chamber. A piston having a ceramic pumping portion is movable in the bore relative to the chamber in a suction stroke to draw the melt into the chamber through the melt inlet and in a pumping stroke to discharge the melt from the chamber through the melt outlet to, for example, a melt casting machine. A melt inlet valve having a ceramic valve portion submersible in the melt is movable relative to the melt inlet to open/close the melt inlet when the piston pumping portion is moved in the respective suction/pumping stroke.

Abstract: A two-chamber furnace for delivering a melt to a casting machine comprises a storage chamber having an inlet device for material to be melted, a removal chamber having an outlet device for removing the melted material, and an intermediate chamber arranged between the storage chamber and the removal chamber, the intermediate chamber communicating with the removal chamber through a balancing port and with the storage chamber by an overflow. A control device controls the level of the melted material in the removal chamber, the control device including a pump for moving the melted material from the storage chamber to the intermediate chamber.

Abstract: An automatic handling system is described for delivering a molten metal, such as magnesium or magnesium alloys, to a casting machine. The handling system comprises a programmable logic controller (PLC) for monitoring and controlling the sequential delivery of shots of a precise quantity of molten metal from a furnace or holding pot to a shot delivery apparatus of the casting machine. In the preferred system, the PLC also monitors and/or controls the temperatures of the molten metal in the holding pot and in a metal transfer system, the operation of a pump for pumping molten metal from the holding pot to the shot delivery apparatus, and the level of metal in the pot, and the operation of the the casting machine.

Abstract: The invention is directed to an immersion casting pipe for feeding molten steel from a casting vessel into a mold having wide side walls and narrow side walls for the production of flat products. The immersion casting pipe has a pipe piece which adjoins the casting vessel and expands in cross section in the direction of the narrow side walls of the mold. The pipe piece is provided with a central base member at the lower end which allows for outlet openings for the melt. For the purpose of developing an immersion outlet which allows higher slab withdrawal speed of up to 6 m/min with slabs measuring 50 to 100 mm in thickness and 600 mm to 2000 mm in width, the inner wall of the portion of the immersion casting pipe which widens in cross section forms flow channels in conjunction with the opposite wall parts of the base member. The axes of the flow channels enclose an angle .alpha. between 10.degree. and 22.degree.

Abstract: The machine includes a train of molds moving through an arcuate pouring zone, a supply vessel for the metal, a trough extending between the vessel and the mold trains to convey the metal therebetween. The metal is discharged from beneath the surface of the metal in the vessel and into one end of the trough beneath the surface of the metal therein. The other end of the trough is registered with a mold in the trains and moves with the trains while metal is dispensed into the mold from beneath the surface of the metal in the trough. Valves control the discharging and dispensing of the metal to and from the trough. A motor moves the trough, as needed, in the pouring cycle, and a coupler coordinates the movement of the trough and the mold to keep them registered in the pouring zone.