Title:
CASTING DIE
Document Type and Number:
WIPO Patent Application WO/2011/018922
Kind Code:
A1
Abstract:
A casting die which provides a high molten metal fluidity and a high mold releasability is realized. A die (10) is provided with a dimple region (D) in which a plurality of semisphere-shaped first dimples (12) formed in a cavity surface (11) are dispersed directionlessly. The communication ratio defined by the number of the first dimples (12) which constitute combined dimples (12b) consisting of two or more dimples interconnected to the total number of the first dimples (12) is not less than 80%. Thus, a large number of combined dimples (12b) which serve as random, directionless short flow passages are formed in the dimple region (D), thereby enhancing the molten metal fluidity.
Inventors:
HIRANO, Masao (Sinto SB Tec Company Nishiharu-Jigyosho, 51, Shinmei, Ubukuji, Kitanagoya-sh, Aichi 78, 〒4818678, JP)
平野 雅雄 (〒78 愛知県北名古屋市宇福寺神明５１番地 新東工業株式会社新東エスビーテックカンパニー西春事業所内 Aichi, 〒4818678, JP)
平野 雅雄 (〒78 愛知県北名古屋市宇福寺神明５１番地 新東工業株式会社新東エスビーテックカンパニー西春事業所内 Aichi, 〒4818678, JP)
Application Number:
JP2010/060719
Publication Date:
February 17, 2011
Filing Date:
June 24, 2010
Export Citation:
Assignee:
SINTOKOGIO, LTD. (28-12, Meieki 3-chome Nakamura-ku, Nagoya-sh, Aichi 02, 〒4500002, JP)
新東工業株式会社 (〒02 愛知県名古屋市中村区名駅三丁目２８番１２号 Aichi, 〒4500002, JP)
HIRANO, Masao (Sinto SB Tec Company Nishiharu-Jigyosho, 51, Shinmei, Ubukuji, Kitanagoya-sh, Aichi 78, 〒4818678, JP)
新東工業株式会社 (〒02 愛知県名古屋市中村区名駅三丁目２８番１２号 Aichi, 〒4500002, JP)
HIRANO, Masao (Sinto SB Tec Company Nishiharu-Jigyosho, 51, Shinmei, Ubukuji, Kitanagoya-sh, Aichi 78, 〒4818678, JP)
International Classes:
B22D17/22; B22C9/06; B24C1/04; C23C8/24; C23C8/48
Attorney, Agent or Firm:
YAMASAKI, Yukuzo et al. (Yamasaki & Partners, Sogo Nagatacho Bldg. 8F., 11-28, Nagata-cho 1-chome, Chiyoda-k, Tokyo 14, 〒1000014, JP)
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