发明授权
US06777863B1 Material for aperture grill for color picture tube, process for making the same, aperture grill, and picture tube
失效
用于彩色显像管的孔格栅的材料，制造相同的工艺，孔格栅和显像管
- 专利标题： Material for aperture grill for color picture tube, process for making the same, aperture grill, and picture tube
- 专利标题（中）： 用于彩色显像管的孔格栅的材料，制造相同的工艺，孔格栅和显像管
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申请号： US09646349申请日： 2001-01-03
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公开(公告)号： US06777863B1公开(公告)日： 2004-08-17
- 发明人: Hironao Okayama , Tsuneyuki Ide , Yasuo Tahara , Hiroshi Fujishige , Akira Ikeda , Setsuo Takaki
- 申请人： Hironao Okayama , Tsuneyuki Ide , Yasuo Tahara , Hiroshi Fujishige , Akira Ikeda , Setsuo Takaki
- 主分类号： H01J2980
- IPC分类号： H01J2980
摘要：
A material is provided for marking aperture grilles for use in a color picture tube which has excellent yield strength, high temperature creep strength, and superior magnetic characteristics as compared to conventional materials. The material is made by cold-rolling a low carbon sheet containing 9 to 30 weight % of Ni or 9 to 30 weight % of Ni and 0.1 to 5 weight % of Co, and annealing the cold-rolled steel sheet at a temperature of 400-500° C.