Structure for producing cast
AssigneeKao Corporation
InventorsRyota Shiiba, Yoshiyuki Kibe, Toshihiko Mori, Yuki Kondo
Life of this patent
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Abstract
A structure for manufacturing castings, containing an inorganic fiber, a layered clay mineral, and an inorganic particle other than the layered clay mineral and having an organic content of 5 mass % or lower or having a mass loss of 5 mass % or lower when heated at 1000° C. for 30 minutes. The inorganic particle preferably contains one or more selected from obsidian, graphite, and mullite. The inorganic fiber preferably contains carbon fiber. The inorganic fiber preferably has an average length of 0.5 to 15 mm. The layered clay mineral preferably contains one or more selected from bentonite and montmorillonite.
Claims19
A mold portion for manufacturing castings, comprising:
- a plurality of inorganic fibers,
- a layered clay mineral, and
- a plurality of inorganic particles other than the layered clay mineral,
- wherein the layered clay mineral is interposed between the plurality of inorganic particles and the plurality of inorganic fibers,
- wherein the mold portion has a mass loss of 5 mass % or lower when heated at 1000° C. for 30 minutes in a nitrogen atmosphere,
- wherein an average particle size of the layered clay mineral interposed between the plurality of inorganic particles and the plurality of inorganic fibers is 0.1 to 500 μm, and
- wherein the layered clay mineral is present in an amount of 1 to 50 mass %.
A structure for manufacturing castings, comprising:
- an inorganic fiber,
- a layered clay mineral, and
- an inorganic particle other than the layered clay mineral,
- wherein the layered clay mineral is interposed between the inorganic particle and the inorganic fiber,
- wherein the structure has a mass loss of 5 mass % or lower when heated at 1000° C. for 30 minutes in a nitrogen atmosphere, and
- wherein the layered clay mineral is present in an amount of 1 to 50 mass % and/or an average particle size of the layered clay mineral interposed between the inorganic particle and the inorganic fiber is 0.1 to 500 μm.
Dependencies are inferred from the claim text.