Pillsbury Winthrop LLP
Magnetostriction control alloy sheet, a part of a braun tube, and a manufacturing method for a magnetostriction control alloy sheet
The invention relates to a magnetostriction control alloy sheet advantageously used as a high resolution shadow mask having a low coefficient of thermal expansion, superior magnetic properties and a high Young's modulus after a blackening process, a manufacturing process for the same, and a part for a color Braun tube such as a shadow mask. The magnetostriction control alloy sheet comprises C at 0.01 wt. % or less, Ni at 30 to 36 wt. %, Co at 1 to 5.0 wt. %, and Cr at 0.1 to 2 wt. %, the remainder Fe and unavoidable impurities, and having a magnetostriction &lgr; after the softening and annealing of (&#8722;15&times;10&#8722;6) to (25&times;10&#8722;6).
Dai Nippon Printing Co., Ltd.
C C C H C C C C H
C22C C22C C21D H01J C22C C21D C23F C21D H01J
inventional inventional additional additional inventional inventional inventional additional inventional
Akira Nobuaki Hiroyuki Norio Tsutomu Takahito Shinya
Makita Kanayama Yamada Fukuda Hatano Aoki Nakamura