The invention relates to a device and a method for producing components comprising a mould building device (1) for producing lost casting moulds, and a casting device (2) connected to the mould building device for casting components in the lost casting moulds, characterised in that the mould building device is suitable for the continuous layering of moulding plates (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23), wherein a respective at least three of said moulding plates form a casting mould.

A casting tool for a piston may include a casting mold for forming a piston part from a casting melt and a casting head including a feeder for feeding the casting melt into the casting mold. The casting head may include a ring-shaped groove, and the groove may include an inner groove flank for forming the casting melt into a circumferential, ring-shaped sealing rib such that an inner rib flank of the sealing rib rests with a sealing effect against the inner groove flank when the casting melt solidifies in the groove. Additionally or alternatively, the casting head may include a ring-shaped collar, and the collar may include an outer collar flank for forming the casting melt to provide a circumferential, ring-shaped sealing groove such that an outer groove flank of the sealing groove rests with a sealing effect against the outer collar flank when the casting melt solidifies.

A method for producing iron metal castings, wherein an expendable mold having a cavity for holding casting material is inserted into an opened multi-part permanent mold, the permanent mold is closed, the cavity is filled with casting material, wherein a supporting device partially protruding into the cavity is partially overcast, the expendable mold is cooled in the permanent mold after the filling, the permanent mold is opened during the cooling, after the liquidus temperature has been fallen below at the earliest, and the expendable mold is nondestructively removed from the permanent mold together with the casting, the expendable mold is further cooled together with the solidified casting while hanging on the supporting device, at least until the microstructure formation of the casting is concluded, the casting is demolded by removing the expendable mold.

The invention provides a neck-down feeder of unitary construction for use in metal casting. The feeder comprises a body portion integrally formed at a first end thereof with a tapered base portion for mounting on a mold pattern. The body portion and the base portion are defined by a continuous sidewall having one or more regions of weakness arranged such that the feeder is breakable in use whereby at least a part of the base portion detaches from the body portion and is received therein.

The present disclosure provides a method and system of casting an integral multi-way valve based on 3D printing, and belongs to the technical field of valve casting. The casting method and system determine, according to structural parameters of an integral multi-way valve to be cast, a plurality of ingates on a plurality of layers, a plurality of runners connecting the ingates on each layer, and a sprue connecting the plurality of runners, and an integral sand mold is printed by using the 3D printing technology to realize a multi-layer composite casting method and a corresponding casting system.

A riser sleeve (1) for using when pouring metals into a casting mould includes a riser body (2). The riser body (2) includes a riser cavity (3) for holding liquid metal and a riser opening (4) for joining the riser cavity (3) to a mould cavity of the casting mould during the casting process. The riser cavity (3) has a greater diameter than the diameter of the riser opening (4) in at least one portion, the riser body (2) is made of an insulating and/or exothermic riser material. The riser body (2) is formed as a single piece, the riser opening (4) defines an axis (5), and the riser cavity (3) is asymmetric to the axis (5).

The present invention relates to the use of closed-pore microspheres of expanded perlite as a filler for producing moldings for the foundry industry, to a composition for producing moldings for the foundry industry, comprising closed-pore microspheres of expanded perlite as a filler, and a binder, the binder being selected from the group consisting of water glass, phenol-formaldehyde resins, two-component systems comprising as reactants a polyisocyanate and a polyol component containing free hydroxyl groups (OH groups), and starch, and also to moldings for the foundry industry and to a process for producing a molding for the foundry industry.

The invention relates to a single-piece feeder body for use as a component of a two-part or multi-part telescopic feeder insert in metal casting,

having a feeder wall which at least partially delimits a feeder cavity for receiving liquid metal, wherein the feeder wall has a passage opening for the liquid metal into the feeder cavity, and an outer surface on which there are arranged at least one outwardly projecting holding element and at least one guide part with a sliding section for a feeder element which corresponds with the feeder body,
wherein the guide part has a supporting section which protrudes outwardly on the outer surface and which, adjoining the sliding section of the guide part for guiding the feeder element, extends in the direction of the passage opening.

The invention relates to a method for producing a mold part (26, 26′) with a feeder insert arranged in it, with a sprue for liquid metal, for a divisible casting mold for metal casting, with the following steps: producing or providing a mold part (26, 26′) equipped with a closed feeder insert (2, 2′) from a compacted molding material (28), the closed feeder insert (2, 2′) being arranged fixed in place in the compacted molding material (28) of the mold part (26, 26′) and having a feeder opening (10, 10′) connected to regions of the mold cavity (30, 30′) that is to be formed, and opening the closed feeder insert (2, 2′), so that a sprue (32, 32′) for liquid metal is formed.

A method and system for manufacturing a cast iron crankshaft for a vehicle are provided. The system comprises a molding unit arranged to form a negative sand cast mold of the cast iron crankshaft. The mold comprising at least one molded cavity having a pattern with dimensions of the cast iron crankshaft. The system further comprises a feeding mechanism comprising a riser having a connector through which molten metallic material flows to the cast mold. The feeding mechanism feeds the molten metallic material at a riser connection angle in the at least one mold cavity. The riser connection angle corresponds to a connector modulus. The connector modulus is 20% greater than a cast modulus. The riser geometry corresponds to a riser modulus. The riser modulus is 20% greater than the connector modulus. The system further comprises a furnace, a cooling area, a separation unit, a controller and a power source.