Title:
MATERIAL FOR SHADOW MASK, METHOD FOR PRODUCING SAME, SHADOW MASK MADE OF SUCH MATERIAL FOR SHADOW MASK, AND COLOR PICTURE TUBE HAVING SUCH SHADOW MASK
Document Type and Number:
WIPO Patent Application WO/2005/111252
Kind Code:
A1
Abstract:
Disclosed is a material for shadow masks which is excellent in tensile strength and magnetic characteristics. Also disclosed are a method for producing such a material for shadow masks, a shadow mask made of such a material for shadow masks, and a color picture tube having such a shadow mask. Specifically disclosed is a material for shadow masks containing not more than 0.003 weight% of C, not more than 0.05 weight% of Si, 0.1-0.5 weight% of Mn, not more than 0.1 weight% of P, not more than 0.05 weight% of S, not more than 0.02 weight% of Al, 0.001-0.01 weight% of N, not more than 0.01 weight% of B, and further containing 0.01-0.07 weight% of Ti and/or 0.01-0.05 weight% of Nb, and the balance of Fe and unavoidable impurities.
Inventors:
UEDA TOSHIYUKI (JP)
TAHARA YASUO (JP)
KOMAI MASAO (JP)
TAHARA YASUO (JP)
KOMAI MASAO (JP)
Application Number:
PCT/JP2005/008858
Publication Date:
November 24, 2005
Filing Date:
May 16, 2005
Export Citation:
Assignee:
TOYO KOHAN CO LTD (JP)
UEDA TOSHIYUKI (JP)
TAHARA YASUO (JP)
KOMAI MASAO (JP)
UEDA TOSHIYUKI (JP)
TAHARA YASUO (JP)
KOMAI MASAO (JP)
International Classes:
B21B1/22; B21B3/00; C21D9/46; C22C38/00; C22C38/14; H01J29/07; B21B3/02; (IPC1-7): C22C38/00; B21B3/00; C21D9/46; C22C38/14; H01J29/07
Foreign References:
| JPH1150149A | 1999-02-23 | |||
| JP2004059937A | 2004-02-26 | |||
| JP2004043871A | 2004-02-12 | |||
| JP3287257B2 | 2002-06-04 |
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