Method for manufacturing glass panel for a cathode ray tube
    3.
    发明授权
    Method for manufacturing glass panel for a cathode ray tube 失效
    阴极射线管用玻璃面板的制造方法

    公开(公告)号:US06884137B2

    公开(公告)日:2005-04-26

    申请号:US10158429

    申请日:2002-05-30

    CPC classification number: C03B25/06 C03B11/127 H01J9/244 Y02P40/57

    Abstract: A method for producing CRT screens includes the step of reducing the cooling rate of part of a press-formed glass screen during the cooling stage. The outside portion of the screen, i.e., the side normally facing a viewer, normally has a higher cooling rate than the inside portion of the screen, which leads to unwanted stresses in the finished product. The cooling rate of the outside portion of the screen is reduced by reflecting the heat radiating from the outside portion during the cooling process, and/or providing extra heat to the outside portion from a heater. The reduction in the cooling rate is preferably done during the transport of the glass screen from the press to the cooling oven. The method provides for systematic cooling of the inside and outside portions of the glass screen at nearly the same cooling rate.

    Abstract translation: 用于制造CRT屏幕的方法包括在冷却阶段降低压制玻璃屏幕的部分冷却速度的步骤。 屏幕的外部部分,即通常面向观察者的一侧通常具有比屏幕内部更高的冷却速度,这导致最终产品中的不必要的应力。 通过在冷却过程中反射从外部散发的热量和/或从加热器向外部提供额外的热量来减少屏幕外部部分的冷却速度。 冷却速度的降低优选在将玻璃屏从压机运送到冷却炉期间进行。 该方法提供以几乎相同的冷却速率系统地冷却玻璃屏幕的内部和外部部分。

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