A method to manufacture reticulated metal foam via a dual investment solid mold, includes pre-investment of a precursor with a diluted pre-investment ceramic plaster then investing the encapsulated precursor with a ceramic plaster.

A method to manufacture reticulated metal foam via a dual investment solid mold, includes pre-investment of a precursor with a diluted pre-investment ceramic plaster then investing the encapsulated precursor with a ceramic plaster.

This invention estimates an active clay content in mixed sand. A processor (51) of an information processing device (50) executes: an obtaining step of obtaining information concerning mixed sand with which green sand containing clay is mixed; and an estimating step of estimating an active clay content in the mixed sand in accordance with the obtained information concerning the mixed sand.

A method of producing a ceramic core for investment casting is provided. The method includes injecting a slurry into a disposable die. The slurry includes ceramic particles, a binder, and carbon fibers. The method also includes a first heating to eliminate the disposable die, leaving a cured ceramic core comprising the ceramic particles, binder, and carbon fibers.

A method and an apparatus for evaluating the degree of contamination of foundry sand are provided that can measure the electrical conductivity of the foundry sand to evaluate the degree of contamination based on the measured electrical conductivity. The method for evaluating the degree of contamination of the foundry sand comprises the steps of preparing a standard sample (1, 101) and a comparative sample (201) of the foundry sand, measuring the electrical conductivity of the standard and comparative samples after a wetting treatment of them has been carried out, and evaluating the degree of contamination based on the measured electrical conductivity.

A mullite shell mold for casting includes a facecoat layer containing ceramic flour. The mullite shell mold also includes a first layer disposed on the facecoat layer. The first layer can contain sintered ceramic media. The facecoat layer and the first layer can each contain less than 1 wt % crystalline silica.

A molding tool made of carbon or graphite, namely a casting mold or a casting core for the processing of molten metal or to a molding tool for the processing of molten glass, such as for example a blow mold and a method for producing the molding tool.

A molding tool made of carbon or graphite, namely a casting mold or a casting core for the processing of molten metal or to a molding tool for the processing of molten glass, such as for example a blow mold and a method for producing the molding tool.

A method of forming a component having an internal passage defined therein is provided. The method includes positioning a jacketed core with respect to a mold. The jacketed core includes a hollow structure formed at least partially by an additive manufacturing process, and an inner core disposed within the hollow structure. The method also includes introducing a component material in a molten state into a cavity of the mold, and cooling the component material in the cavity to form the component. The inner core is positioned to define the internal passage within the component.