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    • 2. 发明申请
    • METHOD OF MAKING A GLASS PREFORM
    • 制作玻璃预制件的方法
    • US20110011135A1
    • 2011-01-20
    • US12835299
    • 2010-07-13
    • Tomohiro ISHIHARA
    • Tomohiro ISHIHARA
    • C03B37/02
    • C03B37/0142C03B37/01466C03B37/01486C03B2207/66
    • The method that enables high yield production of a glass preform comprises an assembling step, a soot deposition step, a pulling step, a consolidation step, and a collapse step. In at least one traverse of the reciprocating movement during the soot deposition step, the relative transfer velocity of the base rod unit and the glass synthesizing burner in a second range is made slower than the relative transfer velocity of the base rod unit and the glass synthesizing burner in a first range, where the first range is a range extending from a boundary position to the tip portion of the starting mandrel and the second range is a range extending from the boundary position to a part of the tubular handle, the boundary position being a position that is 30 mm or more distanced from one end of the tubular handle to the direction of the tip portion of the starting mandrel.
    • 能够实现高产量生产玻璃预制件的方法包括组装步骤,烟灰沉积步骤,拉伸步骤,固结步骤和塌陷步骤。 在烟灰沉积步骤期间,在往复运动的至少一次横移中,基棒单元和玻璃合成燃烧器在第二范围内的相对转移速度比基棒单元和玻璃合成的相对转移速度慢 燃烧器处于第一范围,其中第一范围是从起始心轴的边界位置延伸到前端部分的范围,第二范围是从边界位置延伸到管状手柄的一部分的范围,边界位置为 从管状手柄的一端离开起始心轴的前端部的方向为30mm以上的位置。