A method for the production of castings which are permanently provided with readable information. An identification element, which has an information surface, provided with information, and a casting surface which is assigned to the casting and also provided with information, is arranged on a casting mould surface assigned to a mould cavity of a casting mould so that the information surface is covered, while the casting surface is exposed in the mould cavity. A metal melt is poured into the mould, so that, during casting or solidification of the metal melt, a firmly bonded, form-fit or force-fit connection of the identification element to the casting is produced. The information on the casting surface is reproduced in the manner of a stamp on surface of the casting. The casting is then removed from the mould and fettled.

A method for the production of castings which are permanently provided with readable information. An identification element, which has an information surface, provided with information, and a casting surface which is assigned to the casting and also provided with information, is arranged on a casting mould surface assigned to a mould cavity of a casting mould so that the information surface is covered, while the casting surface is exposed in the mould cavity. A metal melt is poured into the mould, so that, during casting or solidification of the metal melt, a firmly bonded, form-fit or force-fit connection of the identification element to the casting is produced. The information on the casting surface is reproduced in the manner of a stamp on surface of the casting. The casting is then removed from the mould and fettled.

A processing system and method for processing a cast raw casting has a spray system for cooling the raw casting. The spray system has at least one nozzle device for at least temporally, locally, or quantitatively variable application of a free-flowing medium to at least one section of the raw casting. The processing system also has a temperature measuring device for measuring the temperature on at least one section of the raw casting and a monitoring device for controlling and adjusting the nozzle device as a function of the measured temperature.

A processing system and method for processing a cast raw casting has a spray system for cooling the raw casting. The spray system has at least one nozzle device for at least temporally, locally, or quantitatively variable application of a free-flowing medium to at least one section of the raw casting. The processing system also has a temperature measuring device for measuring the temperature on at least one section of the raw casting and a monitoring device for controlling and adjusting the nozzle device as a function of the measured temperature.

The present invention relates to a hubless one-piece wheel comprising: a rim; and a disc integrally formed at the rim and formed by low-pressure casting, wherein the disc is a hubless type including a plurality of spokes and a space at the center of the rim. One side of said each spoke is integrally formed at the rim, and a lug hole is formed in the other side of said each spoke for coupling the wheel to a vehicle body. The plurality of spokes are radially arranged inside the rim, and each of the other sides of the spoke locates in the inner center portion of the rim being separated by the space.

A method for producing a helix includes a step of providing a permanent mold with mold halves which are joined together on a mold parting line. The method additionally has a step of joining together the mold halves of the permanent mold such that the permanent mold has a cavity, which defines the shape of the helix or the shape of a bent-up helix, when the permanent mold is joined together, wherein the helix or the bent-up helix has a flattened profiled winding cross-section which has two opposite flat sides, an outer side and an inner side opposite the outer side, and the mold parting line runs at least partly along the outer side and/or the inner side and/or edges of the profiled winding cross-section.

A casting flow running system (11) for supplying liquid metal to a mold cavity formed in a casting mold includes a plurality of pipe sections (13) that are connected to one another; at least one ingate pipe (13) for connecting the casting flow runner system (11) with an ingate of a casting model forming the mold cavity; and a frame (15) made of a heat-resistant material disposed on the ingate pipe (13). The frame has a net-like webbing (18) made of a fireproof material tensioned therein and is attached to the ingate pipe (13) such that the netlike webbing (18) at least partially spans a cross section of the ingate pipe (13) and is positioned in a region proximate to a surface of a casting piece formed by filling the mold cavity.

An internal combustion engine piston includes a crown surface including a low thermal conductivity part lower in thermal conductivity than a base material. The low thermal conductivity part includes a porous member made of a glass material lower in thermal conductivity than the base material, and impregnated with the base material. A first material is interposed at least partly between the porous member and the base material in the low thermal conductivity part, wherein the first material is water-soluble, and has a higher melting point than the porous member.

An internal combustion engine piston includes a crown surface including a low thermal conductivity part lower in thermal conductivity than a base material. The low thermal conductivity part includes a porous member made of a glass material lower in thermal conductivity than the base material, and impregnated with the base material. A first material is interposed at least partly between the porous member and the base material in the low thermal conductivity part, wherein the first material is water-soluble, and has a higher melting point than the porous member.

Systems and methods are disclosed herein for a pressure tolerant energy system. The pressure tolerant energy system may comprise a pressure tolerant cavity and an energy system enclosed in the pressure tolerant cavity configured to provide electrical power to the vehicle. The energy system may include one or more battery cells and a pressure tolerant, programmable management circuit. The pressure tolerant cavity may be filled with an electrically-inert liquid, such as mineral oil. In some embodiments, the electrically-inert liquid may be kept at a positive pressure relative to a pressure external to the pressure tolerant cavity. The energy system may further comprise a pressure venting system configured to maintain the pressure inside the pressure tolerant cavity within a range of pressures. The pressure tolerant cavity may be sealed to prevent water ingress.