Title:
塑性加工用素材およびその製造方法
Document Type and Number:
Japanese Patent JP2004519332
Kind Code:
A
Abstract:
A material for plastic working is produced by the steps of using a mold having a mold cavity ( 16 ) partially defined by an end surface of a stopper ( 13 ) for closing a molten metal inlet ( 101 ), teeming molten metal ( 10 ) into the mold cavity through the inlet and cooling the molten metal to thereby attain unidirectional solidification of the molten metal. Regulation of the cooling rate enables the mean grain size to be graded in the direction from the cooled face (B surface) to the opposing face (T surface) and the added components to increase in the same direction. It is possible to obtain a material for plastic working that has a selected portion exhibiting an excellent function.
Inventors:
Shigeru Yanamoto
Fukuda Masashi
Tomio Uchida
Kunio Hirano
Fukuda Masashi
Tomio Uchida
Kunio Hirano
Application Number:
JP2002567488A
Publication Date:
July 02, 2004
Filing Date:
February 28, 2002
Export Citation:
Assignee:
SHOWA DENKO K.K.
International Classes:
B22D21/04; B21B1/38; B21J1/02; B21J5/00; B22D27/04; (IPC1-7): B22D27/04; B22D21/04
Attorney, Agent or Firm:
Kenzo Fukuda
Shinichi Fukuda
Takemichi Fukuda
Shinichi Fukuda
Takemichi Fukuda