Title:
THIN ALLOY SHEET OF LOW THERMAL EXPANSION AND SHADOW MASK USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2003/004715
Kind Code:
A1
Abstract:
A thin alloy sheet having a low thermal expansion which has a substantial chemical composition in mass %: Ni: 35.0 to 37.0 %, Mn: 0.01 to 0.09 %, Si: 0.01 to 0.04 %, Al: 0.01 to 0.04 % and balance: Fe, with the proviso that Mn&sol S is 20 to 300 and Mn &plus Si &plus Al ≤ 0.15 %, and has an average thermal expansion coefficient in the range of 20 to 100&ring C of 1.0 X 10−6&sol K or less. The thin alloy sheet is free from the occurrence of a crack, a fracture or a flaw and exhibits good etching characteristics and dimensional precision in the manufacture of a shadow mask.
Inventors:
YAMAUCHI KATSUHISA
KOBAYASHI AKIO
TOMITA KUNIKAZU
MURATA SAIICHI
IIZUKA SHUNJI
MATSUOKA HIDEKI
KOBAYASHI AKIO
TOMITA KUNIKAZU
MURATA SAIICHI
IIZUKA SHUNJI
MATSUOKA HIDEKI
Application Number:
PCT/JP2002/006785
Publication Date:
January 16, 2003
Filing Date:
July 04, 2002
Export Citation:
Assignee:
NIPPON KOKAN KK (JP)
International Classes:
C22C38/04; C22C38/08; H01J29/07; C21D8/02; (IPC1-7): C22C38/08
Foreign References:
| DE4402684A1 | 1994-12-01 | |||
| JPH09176797A | 1997-07-08 | |||
| JP2001192775A | 2001-07-17 |
Other References:
See also references of EP 1403393A4
Attorney, Agent or Firm:
Nakahama, Yasumitsu c/o Intellectual, Property Dept (NKK Corporation 1-1, Minamiwatarida-cho, Kawasaki-k, Kawasaki-shi Kanagawa, JP)
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