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    • 9. 发明授权
    • Blackening of non-iron-based flat tensioned foil shadow masks
    • 非铁基扁平张紧薄膜荫罩的黑化
    • US4904218A
    • 1990-02-27
    • US287799
    • 1988-12-21
    • Hua Sou Tong
    • Hua Sou Tong
    • H01J9/14H01J29/07
    • H01J9/146H01J29/07H01J2229/0722
    • The power handling capacity of non iron-based flat tensioned foil shadow masks for flat faceplate cathode ray tubes (CRTs) is enhanced by providing the flat tensioned mask (FTM) with a thin outer layer of iron, which is converted to iron oxide by blackening, or heating. The iron layer, which is preferably at least 0.04 mil thick, is deposited on the FTM by electroplating in a ferrous ammonium sulfate bath either before or after chemical etching of the FTM. The thin iron layer increases FTM emissivity and reduces FTM doming at high electron beam energies. The iron coating may be blackened in the frit-like cycle during CRT assembly or in a separate heating operation. A blackened outer layer of cobalt may also be used to increase FTM emissivity.
    • 通过提供具有薄的外层铁的平坦张力掩模(FTM)来增强平板式阴极射线管(CRT)的非铁性平面张力箔荫罩的功率处理能力,其通过变黑转化为氧化铁 ,或加热。 优选至少0.04密耳厚的铁层通过在化学蚀刻FTM之前或之后通过电镀在硫酸亚铁铵浴中而沉积在FTM上。 薄铁层增加FTM发射率,并减少高电子束能量下的FTM穹顶。 在CRT组装期间或在单独的加热操作中,铁涂层可能在玻璃料状循环中变黑。 也可以使用黑色的钴外层来增加FTM发射率。
    • 10. 发明授权
    • Blackening of non iron-based flat tensioned foil shadow masks
    • 非铁基扁平张力箔荫罩的黑化
    • US4885501A
    • 1989-12-05
    • US174660
    • 1988-03-29
    • Hua Sou Tong
    • Hua Sou Tong
    • H01J9/14H01J29/07
    • H01J29/07H01J9/146H01J2229/0722
    • The power handling capacity of non iron-based flat tensioned foil shadow masks for flat faceplate cathode ray tubes (CRTs) is enhanced by providing the flat tensioned mask (FTM) with a thin outer layer of iron, which is converted to iron oxide by blackening, or heating. The iron layer, which is preferably at least 0.04 mil thick, is deposited on the FTM by electroplating in a ferrous ammonium sulfate bath either before or after chemical etching of the FTM. The thin iron layer increases FTM emissivity and reduces FTM doming at high electron beam energies. The iron coating may be blackened in the frit-like cycle during CRT assembly or in a separate heating operation. A blackened outer layer of cobalt may also be used to increase FTM emissivity.
    • 通过提供具有薄的外层铁的平坦张力掩模(FTM)来增强平板式阴极射线管(CRT)的非铁性平面张力箔荫罩的功率处理能力,其通过变黑转化为氧化铁 ,或加热。 优选至少0.04密耳厚的铁层通过在化学蚀刻FTM之前或之后通过电镀在硫酸亚铁铵浴中而沉积在FTM上。 薄铁层增加FTM发射率,并减少高电子束能量下的FTM穹顶。 在CRT组装期间或在单独的加热操作中,铁涂层可能在玻璃料状循环中变黑。 也可以使用黑色的钴外层来增加FTM发射率。