摘要 |
A material for an aperture grill for a color picture tube having excellent yield and high-temperature creep strengths and magnetic characteristics superior to those of the existing material; a process for making the material; an aperture grill; and a picture tube having the aperture grill assembled therein. A low-carbon steel sheet containing 0.05 to 2.5 wt.% of Cu, or 0.05 to 2.5 wt.% of Cu and 0.001 to 0.4 wt.% of P is cold rolled and then aged at 300 to 700 DEG C, or cold rolled, intermediately annealed at 500 to 800 DEG C, secondarily cold rolled, and then aged.
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申请人 |
TOYO KOHAN CO., LTD.;OKAYAMA, HIRONAO;IDE, TSUNEYUKI;TAHARA, YASUO;FUJISHIGE, HIROSHI;IKEDA, AKIRA;TAKAKI, SETSUO |
发明人 |
OKAYAMA, HIRONAO;IDE, TSUNEYUKI;TAHARA, YASUO;FUJISHIGE, HIROSHI;IKEDA, AKIRA;TAKAKI, SETSUO |