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    • 8. 发明授权
    • Electrode assembly for molten glass forehearth
    • 熔融玻璃前炉电极组件
    • US4287380A
    • 1981-09-01
    • US76580
    • 1979-09-18
    • Richard E. FairbanksJames F. StevensonJohn F. Blumenfeld
    • Richard E. FairbanksJames F. StevensonJohn F. Blumenfeld
    • C03B5/03H05B3/03H05B3/60C03B5/02
    • H05B3/03
    • A molybdenum electrode is mounted in a stepped aperture in the sidewall of the forehearth such that the inner end portion of the electrode is immersed in the molten glass where the molybdenum is effectively isolated from oxidizing agents. The outer end portion of the electrode is shielded in a high temperature alloy steel sleeve, which sleeve is spaced from the electrode to provide an annular space therebetween. A ceramic fiberous material is provided between the inner end of the sleeve and the electrode, and a high temperature alloy steel plug is threadably secured to the outer ends of both the sleeve and the electrode to seal the outer end of this annular space, and to serve as an electrical terminal for the electrode. The molten glass solidifies inside the sleeve's inner end to seal the inner end of the sleeve. The assembly is clamped to the furnace framework by an insulated bracket adjacent the outer end of the sleeve, which bracket is designed to thrust the assembly inwardly so that an annular flange on the sleeve abuts the sidewall of the refractory channel, which sidewall defines the step in the aperture of the furnace forehearth sidewall itself.
    • 钼电极安装在前炉侧壁的台阶孔中,使得电极的内端部浸入熔融玻璃中,其中钼与氧化剂有效隔离。 电极的外端部在高温合金钢套筒中被屏蔽,该套筒与电极间隔开以在其间形成环形空间。 陶瓷纤维材料设置在套筒的内端和电极之间,高温合金钢塞可螺纹地固定到套筒和电极的外端,以密封该环形空间的外端,并且 作为电极的电气端子。 熔融玻璃凝固在套筒的内端内部以密封套筒的内端。 组件通过邻近套管外端的绝缘支架夹紧在炉框架上,该支架被设计成向内推动组件,使得套筒上的环形凸缘邻接耐火材料通道的侧壁,该侧壁限定步骤 在炉前侧壁本身的孔中。