Title:
高圧鋳造用分解性コア、その製造方法、およびその抽出方法
Document Type and Number:
Japanese Patent JP3757165
Kind Code:
B2
Abstract:
Disclosed is a method for manufacturing a disintegrative core for use in high pressure casting. The disintegrative core can be applied where a light metal such as an aluminum alloy or magnesium alloy is subjected to high pressure casting, such as die casting or squeeze casting and is manufactured from a water-soluble salt which is high in latent heat and ranges, in melting point, from 280 to 520° C. and, in heat transfer coefficient (kappa), from 9.8x10<-2 >to 1.2x10 W/m.° C. The water-soluble salt, alone or in combination with a fine hard powder, is melted and solidified in a core mold. Alternatively, the melt is processed into a fine powder which is then molded in a core mold. The method can be applied for the manufacture of complex shapes of cores. Also, disclosed is a method for extracting such a core from a high pressure molded product.
Inventors:
Hiroharu Hirokawa
Application Number:
JP2001507592A
Publication Date:
March 22, 2006
Filing Date:
July 04, 2000
Export Citation:
Assignee:
TECHNOLOGY UNION CO., LTD.
International Classes:
B22C9/10; B22D29/00; B22C1/00; B22D11/04; B22D17/00
Domestic Patent References:
| JP5269542A | ||||
| JP5237596A | ||||
| JP4202608A |
Foreign References:
| US4840219 |
Attorney, Agent or Firm:
Kenji Yoshitake
Yukitaka Nakamura
Konno Akio
Noritaka Yokota
Masaharu Takamura
Yukitaka Nakamura
Konno Akio
Noritaka Yokota
Masaharu Takamura