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本发明涉及一种制造光纤预制件的方法及装置。它主要是将种棒经法兰管置于反应容器内并使其下端与喷枪相对,种棒上连接圆柱形整流体,该整流体的下端邻近种棒下端;并从法兰管上端向下导入压力为0.5×105～2.0×105Pa、20～600℃的整流气流,使该整流气流流经气流整流体与法兰管之
The present invention relates to a method and apparatus for manufacturing an optical fiber preform. The utility model is mainly characterized in that a seed rod is arranged in a reaction vessel through a flange tube and the lower end of the seed rod is connected with a spray gun; a cylindrical rectifying body is connected with the seed rod; a lower end of the rectifying body is adjacent to a lower end of the seed rod; A pressure of 0.5 × 10 5 to 2.0 × 10 5 Pa and a rectified gas flow of 20 to 600 ° C. are introduced to flow the rectified gas through the flow rectifier and the flange pipe