Title:
TITANIUM FOR COPPER FOIL PRODUCTION DRUM HAVING UNIFORM METALLIC STRUCTURE AND PRODUCTION METHOD THEREFOR
Document Type and Number:
Japanese Patent JP3967897
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide titanium for a copper foil production drum which has a uniform metallic structure, and a production method therefor.
SOLUTION: The titanium for a copper foil production drum having a uniform metallic structure has a composition containing, by mass, 0.01 to 0.04% Fe and 0.001 to 0.1% O, and the balance titanium with inevitable impurities. Each average crystal grain size in a region of 1 mm below the surface and a 1/3 sheet thickness part is ≤50 μm, and, the difference in the average crystal grain size between the region of 1 mm below the surface and the 1/3 sheet thickness part is ≤5 μm. Also, preferably, each coefficient of variation in the area distribution of the crystal grains in the region of 1 mm below the surface and the 1/3 sheet thickness part is ≤35%.
Inventors:
Hiroaki Otsuka
Takuji Shindo
Kawahara
Yamashita Yoshito
Mitsuo Ishii
Yukihiro Kako
Hideki Fujii
Takuji Shindo
Kawahara
Yamashita Yoshito
Mitsuo Ishii
Yukihiro Kako
Hideki Fujii
Application Number:
JP2001277289A
Publication Date:
August 29, 2007
Filing Date:
September 12, 2001
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B21B3/00; C22C14/00; C22F1/00; C22F1/18; (IPC1-7): C22C14/00; B21B3/00; C22F1/18; //C22F1/00
Domestic Patent References:
| JP11226608A | ||||
| JP60009866A |
Attorney, Agent or Firm:
Hiroaki Tamura
Tomoyuki Yabuki
Tomoyuki Yabuki
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