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    • 4. 发明授权
    • System and method for suppressing the formation of oxygen inclusions and surface blisters in glass sheets and the resulting glass sheets
    • 用于抑制玻璃板和所得玻璃板中的氧夹杂物和表面起泡的形成的系统和方法
    • US06993936B2
    • 2006-02-07
    • US10656685
    • 2003-09-04
    • Paul R. GrzesikThomas D. KetchamDavid M. LinemanRandy D. Ziegenhagen
    • Paul R. GrzesikThomas D. KetchamDavid M. LinemanRandy D. Ziegenhagen
    • C03B5/42
    • C03B5/425C03B5/163C03B5/225
    • A system and method for suppressing the formation of gaseous inclusions in glass sheets and the resulting glass sheets are described herein. The system includes a melting, fining, delivery, mixing or forming vessel that has a refractory metal component (e.g., platinum component) which has an inner wall that contacts molten glass and an outer wall coated with an oxygen ion transportable material (e.g., zirconia) which is coated with a conductive electrode. The system also includes a DC power source that supplies DC power across the oxygen ion transportable material which causes oxygen ions to migrate from the refractory metal component to the conductive electrode and enables one to control the partial pressure of oxygen around an exterior of the vessel which helps one to effectively prevent hydrogen permeation from the molten glass in order to suppress the formation of undesirable gaseous inclusions and surface blisters within the glass sheet. The present invention also helps one to effectively reduce the oxidation of external, non-glass contact surfaces of the refractory metal component.
    • 本文描述了用于抑制玻璃板中的气态夹杂物的形成的系统和方法。 该系统包括熔融,澄清,输送,混合或成型容器,其具有难熔金属组分(例如铂组分),其具有接触熔融玻璃的内壁和涂覆有氧离子可运输材料的外壁(例如,氧化锆 ),其被涂覆有导电电极。 该系统还包括直流电源,其通过氧离子可运输材料提供直流电力,这导致氧离子从难熔金属部件迁移到导电电极,并且使得能够控制容器外部的氧分压 有助于有效防止熔融玻璃中的氢渗透,以抑制玻璃板内不期望的气态夹杂物和表面起泡的形成。 本发明还有助于有效地降低耐火金属组分的外部非玻璃接触表面的氧化。