Title:
HOLLOW SHAPE MATERIAL EXTRUSION DIE AND THIN THICKNESS HOLLOW SHAPE MATERIAL
Document Type and Number:
Japanese Patent JP3698927
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a hollow shape material extrusion die capable of forming a thin hollow shape material a welded member made of a material hard to extrude like an aluminum alloy, etc., by a reduced number of correcting bearing parts and its thin thickness hollow shape material.
SOLUTION: A welded material is branched by plural entry ports 7a, 7b and is passed through these entry ports 7a, 7b, is joined/welded and then is formed into a thin thickness hollow shape material 9 by extruding from a die hole. The entry ports 7a, 7b are respectively set in conforming to each passing volume rate corresponding to a volume distribution between the welded parts 9a, 9b of the thin thickness hollow shape material 9.
Inventors:
Glory
Application Number:
JP24532799A
Publication Date:
September 21, 2005
Filing Date:
August 31, 1999
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
B21C25/02; B21C23/00; B21C23/08; (IPC1-7): B21C25/02; B21C23/00; B21C23/08
Domestic Patent References:
| JP9057334A | ||||
| JP9038717A | ||||
| JP62279019A |
Attorney, Agent or Firm:
Yoshiyuki Kaji
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