Title:
発泡金属前駆体の製造方法及び発泡金属の製造方法
Document Type and Number:
Japanese Patent JP5641248
Kind Code:
B2
Abstract:
The purpose of this invention is to easily produce a metal foam precursor and a metal foam without using an expensive foaming agent powder. Adding alumina when conducting friction stir processing (FSP) improves the sphericity of the pores in a metal foam and increases the porosity of the metal foam. A die-cast molding (12) that contains gas in the interior is prepared by means of die-casting. Next, a metal foam precursor (16) is produced by dispersing the gas and pore-forming nuclei contained in the interior of the die-cast molding (12) uniformly in the die-cast molding (12) by means of FSP. The metal foam precursor (16) is expanded through a heat treatment that heats the metal foam precursor (16) to near the melting point thereof to produce a metal foam.
Inventors:
半谷 禎彦
宇都宮 登雄
宇都宮 登雄
Application Number:
JP2011504794A
Publication Date:
December 17, 2014
Filing Date:
February 24, 2010
Export Citation:
Assignee:
国立大学法人群馬大学
International Classes:
B22D25/02; B22D17/00; C22C1/02; C22C1/08
Domestic Patent References:
| JP2007302997A | 2007-11-22 | |||
| JP2007275980A | 2007-10-25 | |||
| JP2007229791A | 2007-09-13 | |||
| JP2002001549A | 2002-01-08 | |||
| JP2007302997A | 2007-11-22 |
Attorney, Agent or Firm:
Masayoshi Suda