Abstract: 1. Release agent spray device for a casting machine. 2.1. The invention relates to a release agent spray device for a casting machine, having one or more spray nozzles (1) and discharge means for the controlled discharge of release agent from the respective spray nozzle. 2.2. According to the invention, the discharge means comprise at least one dosing unit (3) which is assigned to at least one spray nozzle (1) and which defines, in advance, a release agent quantity to be discharged by the at least one associated spray nozzle in an impending spray burst and which provides said release agent quantity, separated from a release agent supply, for discharge in the impending spray burst. 2.3. Use for example for metal pressure-die-casting machines.

Abstract: A casting machine system includes a first casting machine and a separate second casting machine, wherein the first casting machine is a metal-casting machine and the second casting machine is a plastic-casting machine, or the first casting machine is a plastic-casting machine and the second casting machine is a metal-casting machine. An associated process produces hybrid metal/plastic articles. The casting machine includes a transfer device for transferring a precursor product, produced by a first casting process in the first casting machine, to the second casting machine, in which a hybrid metal/plastic component is formed from the precursor product by a second casting process, and a temperature-regulating device for regulating the temperature of the precursor product in a controllable manner after its removal from the first casting machine, and before starting the second casting process.

Abstract: A metering device for a hot chamber die-casting machine includes a casting container attachable to a crucible of the hot chamber die-casting machine, a riser channel in a riser channel area, and a casting piston unit for metered conveying of melt out of the crucible via the riser channel. A heating device is provided with a flameless heating unit for active heating of at least a part of the riser channel area. The heating unit is placed inside a piston rod leadthrough bore, electrically insulated from the riser channel in a riser bore containing the riser channel, or in a heater receiving space specially provided in the casting container.

Abstract: 1. Release agent spray device for a casting machine. 2.1. The invention relates to a release agent spray device for a casting machine, having one or more spray nozzles (1) and discharge means for the controlled discharge of release agent from the respective spray nozzle. 2.2. According to the invention, the discharge means comprise at least one dosing unit (3) which is assigned to at least one spray nozzle (1) and which defines, in advance, a release agent quantity to be discharged by the at least one associated spray nozzle in an impending spray burst and which provides said release agent quantity, separated from a release agent supply, for discharge in the impending spray burst. 2.3. Use for example for metal pressure-die-casting machines.

Abstract: A spray head is described for spraying the molds in pressure casting machines, and in it spray nozzles are mounted on bars equipped with supply passages, which form units which can be placed together. To fit these bar units together, coupling elements in the form of cylindrical pins provided with passages are provided, which are provided with recesses having sloping planes which are engaged by the conical tips of Allen screws and thus produce a clamping together of adjacent bar units. The coupling elements are provided at both end faces with sealing rings and their bore aligns with the passages in the bars. Through the use of angle pieces media supply bars bearing spray nozzles can be joined together at any angle to one another.

Abstract: A feed block unit for a hot-runner feed system of a pressure die-casting machine includes a block body in which is incorporated at least one melt-conveying channel running out of the block body by way of a sprue orifice close to the gate, and a heating system, integrated into the block body, for the at least one melt-conveying channel. The feed block unit is designed as a structural unit which is insertable independently into a respective casting mould, and/or the heating system integrated therein includes at least a first heating device for supply channel heating and a second heating device, which can be controlled independently of the first heating device, for sprue channel heating. With this modular hot-runner feed system, individual temperature profiles can be predetermined and set for the respective feed block unit.

Abstract: A protective gas device for the melting furnaces of pressure die-casting machines, in particular for processing a magnesium melt. A collection container of a mixing device for the components of a protective gas, which covers the melt to prevent oxidation or other damage, is configured as a pressure accumulator and the orifices for feeding the protective gas into the melting furnace are provided with inlet nozzles. Gas flow to the inlet nozzles is regulated by metering devices. The operating pressure is equal to or less than the pressure in the pressure accumulator of the mixing device, but high enough to atomise the jets and produce a turbulent inflow behind the inlet nozzles. Said pressurized protective-gas distribution permits the metering of gas into various furnace chambers or furnaces without repercussions. A uniform concentration of the protective gas can be achieved in all areas by the selective arrangement of the inlet nozzles.

Abstract: A metering device for a hot chamber die-casting machine includes a casting container attachable to a crucible of the hot chamber die-casting machine, a riser channel in a riser channel area, and a casting piston unit for metered conveying of melt out of the crucible via the riser channel. A heating device is provided with a flameless heating unit for active heating of at least a part of the riser channel area. The heating unit is placed inside a piston rod leadthrough bore, electrically insulated from the riser channel in a riser bore containing the riser channel, or in a heater receiving space specially provided in the casting container.

Abstract: A spray head for a spraying tool for spraying the halves of a casting tool is described, in which the connection is made to a traveling arm provided with the media-carrying passages through distributing blocks disposed one under the other, from which the connection is made to spray bars through cross connections. The new configuration is selected such that the connection of the spray bars can be made selectively to the one or other of the media passages. By arranging a plurality of distributing blocks together, the addition of spray bars can also be performed stack-wise at varying distances from the particular distributing block.

Abstract: A protective gas device for the melting furnaces of pressure die-casting machines, in particular for processing a magnesium melt. A collection container of a mixing device for the components of a protective gas, which covers the melt to prevent oxidation or other damage, is configured as a pressure accumulator and the orifices for feeding the protective gas into the melting furnace are provided with inlet nozzles. Gas flow to the inlet nozzles is regulated by metering devices. The operating pressure is equal to or less than the pressure in the pressure accumulator of the mixing device, but high enough to atomise the jets and produce a turbulent inflow behind the inlet nozzles. Said pressurized protective-gas distribution permits the metering of gas into various furnace chambers or furnaces without repercussions. A uniform concentration of the protective gas can be achieved in all areas by the selective arrangement of the inlet nozzles.

Abstract: In a spray element for a spray head for spraying the molds of pressure casting machines, a control piston for the release of the parting agent supply is disposed beside the spray nozzle and a connecting passage opens in a chamber of the housing in which one end of the control piston is sealingly guided, while its second end lies with a sealing ring before a chamber fed with parting agent. In the case of the application of control air the sealing ring is shifted out of its cylindrical section 26 into the chamber, so that the feed of parting agent to the spray nozzle is released. If the control air is shut off, then the sealing ring closes the delivery of the parting agent, and the second, larger end of the control piston exercises upon its return movement a reverse suction effect on the connecting passage. Any after-dripping of parting agent is securely prevented.

Abstract: A device for producing nonferrous metal diecast parts is described in which a hot-duct gate system is disposed in front of mold cavities, by means of which hot-duct gate system, it is possible to guide the hot molten metal closely in front of the mold cavities and to maintain it in the liquid condition until the next shot. As a result, solidified overflows or runner ducts and pressing residues are avoided. The new device can therefore operate in a very economical and precise manner.

Abstract: A spray head for a spraying tool for spraying the halves of a casting tool is described, in which the connection is made to a traveling arm provided with the media-carrying passages through distributing blocks disposed one under the other, from which the connection is made to spray bars through cross connections. The new configuration is selected such that the connection of the spray bars can be made selectively to the one or other of the media passages. By arranging a plurality of distributing blocks together, the addition of spray bars can also be performed stack-wise at varying distances from the particular distributing block.

Abstract: A spray head is described for spraying the molds in pressure casting machines, and in it spray nozzles are mounted on bars equipped with supply passages, which form units which can be placed together. To fit these bar units together, coupling elements in the form of cylindrical pins provided with passages are provided, which are provided with recesses having sloping planes which are engaged by the conical tips of Allen screws and thus produce a clamping together of adjacent bar units. The coupling elements are provided at both end faces with sealing rings and their bore aligns with the passages in the bars. Through the use of angle pieces media supply bars bearing spray nozzles can be joined together at any angle to one another.

Abstract: In a spray element for a spray head for spraying the molds of pressure casting machines, a control piston for the release of the parting agent supply is disposed beside the spray nozzle and a connecting passage opens in a chamber of the housing in which one end of the control piston is sealingly guided, while its second end lies with a sealing ring before a chamber fed with parting agent. In the case of the application of control air the sealing ring is shifted out of its cylindrical section 26 into the chamber, so that the feed of parting agent to the spray nozzle is released. If the control air is shut off, then the sealing ring closes the delivery of the parting agent, and the second, larger end of the control piston exercises upon its return movement a reverse suction effect on the connecting passage. Any after-dripping of parting agent is securely prevented.

Abstract: A method of operating a hot-chamber diecasting machine is provided in which, after the filling of the mold, a compressional vibration is generated which prevents the molten metal from rapidly solidifying at least in the narrowest cross-section of the feed orifice between the ascending bore and the mouthpiece and the mold. In this manner, it becomes possible to increase the afterpressure upon the molten metal in the mold in comparison to conventional hot-chamber diecasting processes in order to achieve cast parts of a higher quality.

Abstract: A method is described of operating a hot-chamber pressure diecasting machine and a pressure diecasting machine suitable for the implementation of this method, by which a prefilling of the casting system can be carried out before the actual mold filling operation. During this prefilling operation, the air present in the casting system after each shot when the casting plunger is withdrawn, is pressed out during this prefilling operation through the mold which is still open during this time period. This amount of air therefore no longer has to escape during the subsequent mold filling operation. The mold filling operation and the pressing-in operation can therefore be implemented more effectively and within a shorter period of time.

Abstract: A pressure die casting machine is provided for processing fused metals in which the die locking unit is mounted adjustably on a lifting frame that can be vertically raised or lowered to adapt the die locking unit to the casting nozzle via lever sets and a common mechanical adjusting device for these lever sets. This arrangement achieves a space-saving arrangement with a simplified design.

Abstract: A pressing-in unit for a hot-chamber pressure diecasting machine permits an electro-mechanical drive for the casting plunger. In order to absorb the moments of inertia of the drive which occur during the switch-over of the casting plunger drive from the mold filling phase to the after-pressure phase, a spring element in the form of a plastic component or a liquid spring is inserted between the casting plunger and the pusher rod moved by the electric drive, which spring element is compressed by the additional path which the pusher rod still covers after the braking of the motor. The extent of the compression is selected such that the resulting axial force which is exercised by the plastic component or by the liquid spring is sufficient for causing the desired after-pressure in the molten metal.

Abstract: A method is described of operating a hot-chamber pressure diecasting machine and a pressure diecasting machine suitable for the implementation of this method, by which a prefilling of the casting system can be carried out before the actual mold filling operation. During this prefilling operation, the air present in the casting system after each shot when the casting plunger is withdrawn, is pressed out during this prefilling operation through the mold which is still open during this time period. This amount of air therefore no longer has to escape during the subsequent mold filling operation. The mold filling operation and the pressing-in operation can therefore be implemented more effectively and within a shorter period of time.