Title:
INTERNAL CHILLING METHOD AND PISTON BODY
Document Type and Number:
Japanese Patent JP2010172938
Kind Code:
A
Abstract:
To provide an internal chilling method where the member to be subjected to internal chilling having a closed void part is internally chilled to the body in a regular shape.
The member 21 to be subjected to internal chilling is beforehand heated; its temperature is raised at least to a temperature more than a standard temperature (the molten metal temperature of the base metal in the body 11-100°C), and then, it is internally chilled to the body 11. In this way, the rapid increase of the temperature of the member 21 to be subjected to internal chilling by molten metal upon internal chilling is suppressed so as to prevent the thermal deformation of the member 21 to be subjected to internal chilling.
Inventors:
ANDO KIMIHIKO
KAMO YUKI
KAMO YUKI
Application Number:
JP2009018733A
Publication Date:
August 12, 2010
Filing Date:
January 29, 2009
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
B22D19/00; B22D19/08; F02F3/00
Attorney, Agent or Firm:
Yusuke Hiraki
Sekiya Mitsuo
Yasushi Hayakawa
Sekiya Mitsuo
Yasushi Hayakawa