The present disclosure generally relates to integrated core-shell investment casting molds that provide an integrated ceramic filter. These integrated core-shell investment casting molds also provide filament structures corresponding to cooling hole patterns on the surface of the turbine blade or stator vane, which provide a leaching pathway for the core portion after metal casting. The invention also relates to core filaments that can be used to supplement the leaching pathway, for example in a core tip portion of the mold.

The present invention is a multipart system and method for using cloth filters in automated vertical molding. The system includes a filter setter, a filter print plate and a filter back shelf. The filter setter removably mounts to a mechanical arm and releasably carries at least one cloth filter between upper and lower jaws. The filter print plate mounts to a ram plate while the filter back shelf mounts to a swing plate. During vertical molding, the ram plate and swing plate compress sand to create a mold. The mounted filter print plate creates at least part of a print aperture into which the filter setter inserts the cloth filter. The apertures created by the filter print plate and the filter back shelf support the cloth filter during the founding process.

A cast metal railroad car wheel includes a hub section, a tread section, and an uninterrupted annular web extending between and supporting the tread section on the hub section. The web includes a disk-shaped surface that is continuously concave and that does not include a reversely curved portion. A V-process casting process casts railroad wheels using a vacuum-process casting mold with opposing halves each partially filled with unbonded sand and sand-retaining-plastic film and a vacuum application port and that, when positioned together with the unbonded sand held to shape by vacuum and the film, define a cavity shaped to form a railroad car wheel. The V-process includes feeding molten metal into the cavity, cooling the molten metal, and releasing a vacuum to cause the sand to fall away from the railroad car wheel.

A molten aluminum metal filter system having a holding tank operable to receive a molten metal, a filter device to filter the molten metal, a pump operable to continuously recirculate the molten metal through the filter device, and a casting device to receive a filtered molten metal from the filter device. The filter device includes a chamber, an inlet channel operable to convey the molten metal into the chamber, and an outlet channel operable to convey unused filtered molten metal out of the chamber and back into the holding tank. Removeable filter elements are disposed in series within the inlet channel. The removable filter elements are configured to remove inclusions above a determined diameter size from the molten metal. The filter device includes at least one nozzle operable to direct an inert gas flow to blanket the molten metal and a heating element.

The present disclosure relates to the technical field of die casting machine devices, in particular to a digital die casting machine with mold temperature control, including: a die casting machine configured to die-cast a casting through a mold, a cooling flow control apparatus configured to control a mold temperature by controlling a cooling medium flow, a temperature collection apparatus configured to collect the mold temperature, a control cabinet configured to acquire and store data collected by the temperature collection apparatus and control operation of the die casting machine, the cooling flow control apparatus and an automatic control apparatus, an edge computer configured to execute a die casting temperature optimization strategy according to the collected data stored in the control cabinet, and the automatic control apparatus. The present disclosure improves the molding quality of castings by adjusting the mold temperature in a casting process.

The invention relates to a modification body for the production of spheroidal graphite cast iron and to the method for producing a cast part using the modification body according to the invention, and to the cast part itself. The modification body serves for the production of spheroidal graphite cast iron, in particular with a predominantly ferritic structure, containing a carrier material, preferably an iron-silicon alloy, wherein the modification body contains 7-16 weight percent of boron.

Filtration devices are provided with original structural features to allow a better stiffness of the same and prevent the possibility of being distorted and/or driven under the pressure of a flux of liquid metal or an alloy thereof which is passing there through. Said features may consist of a ridge portion extending the periphery of a filtration device, a rim portion provided in double-basket filtration devices, or a particular <<M>> shape filtration device.

A molten aluminum metal filter system having a holding tank operable to receive a molten metal, a filter device to filter the molten metal, a pump operable to continuously recirculate the molten metal through the filter device, and a casting device to receive a filtered molten metal from the filter device. The filter device includes a chamber, an inlet channel operable to convey the molten metal into the chamber, and an outlet channel operable to convey unused filtered molten metal out of the chamber and back into the holding tank. Removeable filter elements are disposed in series within the inlet channel. The removable filter elements are configured to remove inclusions above a determined diameter size from the molten metal. The filter device includes at least one nozzle operable to direct an inert gas flow to blanket the molten metal and a heating element.

A composition for preparing a rigidified fabric made of heat resistant fibers or threads of heat resistant fibers, preferably of woven threads made of heat resistant fibers, said composition comprising a mixture of a product A and a product B, the product A being obtained by polymerisation of carbohydrate units, natural or synthetic, preferably a saccharide, and more preferably a sugar such as glucose, fructose, galactose, sucrose, maltose, lactose, etc.; and the product B consisting of at least one additive such as a binding agent. A method for preparing said composition, a method for preparing a rigidified fabric of heat resistant fibers, the method for the manufacture of filtering devices, filtering devices so obtained, their use for the filtering of metal, and installation and process involving said filtering devices.

A molten metal filtration apparatus is provided. The apparatus includes a filter chamber having a floor, a metal inlet, a metal outlet, and a wall surface adapted to be partitioned by at least one filter element having an open cell structure characterized by a plurality of interconnected voids. The filter element partitions the filter chamber. At least one heater device is provided at an elevation within the filtration chamber that is equal to or below the filter element.