Bridgestone Corporation

Eigo Tanuma

Fumio Odaka

Tsuneaki Narumiya

Hirotsugu Masuda

Munehiko Kato

Takashi Tokugawa

A ceramic filter arranged in a flow passage through which a molten metal is poured from a gate into a cavity of a casting mold. The ceramic filter has a ceramic main body of a three-dimensional reticulated skeleton structure having interconnected pores. The main body is formed into a cylindrical shape having an inner hollow portion. A method of making the ceramic main body is disclosed by applying a ceramic slurry on a reticulated synthetic resin foam having no cell membranes. The foam is sintered and applied with the ceramic slurry until the foam is removed by carbonization.

Ceramic filter and method of filtrating molten metal using the same

A high-temperature ceramic filter having a three-dimensional reticulated skeleton structure is prepared by applying a ceramic slurry to a synthetic resin foam having an open cell three-dimensional reticulated skeleton structure, followed by drying and firing. The ceramic slurry contains 20-40 parts by weight of aluminum titanate, 40-60 parts by weight of mullite, 2-20 parts by weight of alumina, and agalmatolite. The filter is useful for the filtration of molten metals.

High-temperature ceramic filter

Described herein is a porous ceramic structure consisting of a ceramic roll core or an assembly of ceramic roll cores each comprising: consecutively aligned pairs of inclined cylindrical cell units of oblique figure '8' shape, each cylindrical cell unit having a width of 5-30 mm, a height of 10-100 mm and an angle of inclination of 20-70 degrees.

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Yokohama, Japan

Eigo Tanuma