| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for effectively manufacturing a Fe-Ni alloy for a shadow mask, which prevents a generation of streaking on boring by etching, to provide the Fe-Ni alloy for the shadow mask the shadow mask and a color picture tube. SOLUTION: This method comprises hot rolling a Fe-Ni alloy plate manufactured by rapidly solidifying a molten metal of the Fe-Ni alloy so as to make a segregation rate of Ni after solidification be 2.5% or less, acid cleaning it, cold rolling, and annealing.
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