Steel sheet for heat shrink band and manufacturing method thereof
AssigneesNKK Corporation, Sony Corporation
InventorsTatsuhiko Hiratani, Hideki Matsuoka, Yasushi Tanaka, Reiko Sugihara
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Abstract
A steel sheet for heat shrink band of the present invention has anhysteretic magnetic permeability of 15,000 or higher at 0.35 Oe and yield stress of 24 kgf/mm2 or more. The steel sheet can be manufactured by a method comprising the steps of: hot rolling and/or cold rolling a steel containing 0.01 to 0.15% C by weight; annealing the rolled steel sheet at a temperature ranging from 650 to 900° C.; and temper rolling the annealed steel sheet at a rolling reduction rate of 1.5% or less. A CRT made of the steel sheet causes very little color deviation and practically no deformation of the panel surface.
Claims14
A steel sheet for heat shrink band, having anhysteretic magnetic permeability of 15,000 or higher at 0.35 Oe and yield stress of 24 kgf/mm2 or more.
Dependencies are inferred from the claim text.