| 发明名称 |
HEAT SHRINK BAND AND STEEL SHEET FOR HEAT SHRINK BAND AND METHOD FOR ITS PRODUCTION |
| 摘要 |
A steel sheet for a heat shrink band having a yield strength of 24 kg/mm<sp>2</sp> for use in making a cathode ray tube of aperture grille type, characterized in that it has a magnetic permeability of 400 to 650 at a magnetic field of 0.3 Oe; and a method for producing the steel sheet which comprises subjecting a steel sheet containing 0.5 to 2.0 % of Si to a cold rolling, and annealing the resultant sheet at 600 to 800 DEG C.
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| 申请公布号 |
WO03050317(A1) |
申请公布日期 |
2003.06.19 |
| 申请号 |
WO2002JP01014 |
申请日期 |
2002.02.07 |
| 申请人 |
NKK CORPORATION;TANAKA, YASUSHI;MATSUOKA, HIDEKI |
发明人 |
TANAKA, YASUSHI;MATSUOKA, HIDEKI |
| 分类号 |
B21B1/22;B21B3/02;C21D8/12;C22C38/00;C22C38/02;H01J29/87;(IPC1-7):C22C38/00 |
主分类号 |
B21B1/22 |
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