| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a manufacturing apparatus of synthetic silica glass which can manufacture synthetic silica glass without containing striae and without the internal defect. <P>SOLUTION: The manufacturing apparatus of synthetic silica glass is one that is provided with a furnace body 2, a discharge port 5a located in the furnace body 2, a discharge means 9 connected to the discharge port, a target 6 for forming an ingot and rotatably installed within the furnace body, and a burner 7 for synthesizing silica glass that is located so that the tip of it is facing to the target 6, wherein the furnace body 2 is provided with a muffle 3 made of a refractory at the top of which the burner 7 for synthesizing silica glass is installed, a first furnace part 4 located below the muffle 3 and having a diameter larger than the inner diameter of the muffle 3, and a second furnace part 5 located below the first furnace part 4 and having a diameter larger than the inner diameter of the first furnace part 4. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
