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Title:
EXTRUSION DIE
Document Type and Number:
Japanese Patent JP2012011430
Kind Code:
A
Abstract:

To provide an extrusion die that manufactures an extruded material excellent in a surface texture and dimension accuracy.

The extrusion die 1 includes bearing surfaces 31, 32 of a molding hole 3 that molds an extrusion material 8. The bearing surfaces 31, 32 are inclined inward the molding hole 3 relative to the extruding direction E over the whole length thereof.


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Inventors:
TSUTSUI TOSHIMITSU
KUMAMOTO OSAMU
KITAMURA TAKAYA
Application Number:
JP2010151366A
Publication Date:
January 19, 2012
Filing Date:
July 01, 2010
Export Citation:
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Assignee:
SHOWA DENKO KK
International Classes:
B21C25/02
Domestic Patent References:
JPH0523732A1993-02-02
JPH04111918A1992-04-13
JPH1015611A1998-01-20
JPH09155439A1997-06-17
JPH11114622A1999-04-27
JPH08281319A1996-10-29
JPH11156429A1999-06-15
JP2003181525A2003-07-02
Attorney, Agent or Firm:
Yoshihito Shimizu
Hisayoshi Shimizu
Ken Takada



 
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