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    • 66. 发明专利
    • Manufacturing method of a glass particles deposit
    • JP5168772B2
    • 2013-03-27
    • JP2005322524
    • 2005-11-07
    • 住友電気工業株式会社
    • 慎二 中原
    • C03B8/04
    • C03B37/0142C03B2207/06C03B2207/12C03B2207/20C03B2207/36C03B2207/70
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a deposited body of a glass fine particle under excellent manufacturing conditions by preventing the degradation of the tip of a burner while cutting down the expense of an inert gas or nitrogen gas to reduce the manufacturing cost of a product. SOLUTION: The method for manufacturing the deposited body 19 of the glass fine particle comprises the steps of: producing a glass fine particle by using the burner 7 provided with: a port P1 arranged in the center for jetting a gaseous glass raw material; ports P2, P4 arranged outside the port P1 for jetting combustible gas; and ports P3, P5 arranged outside the port P1 for jetting a combustion supporting gas; and depositing the produced glass fine particle on a glass rod 11. When the distance between the port for the combustible gas and the adjacent port for the combustion supporting gas (the thickness of a pipe 32b, a pipe 32c or a pipe 32d) is defined as W (mm) and the flow rate of the combustible gas to be jetted from the port for the combustible gas is defined as V (m/second), the flow velocity V of the combustible gas is made to satisfy 0.3≤V/W and kept to the extent that the burner 7 does not reach a red-hot state. COPYRIGHT: (C)2007,JPO&INPIT
    • 68. 发明专利
    • Quartz glass burner
    • QUARTZ玻璃燃烧器
    • JP2012066971A
    • 2012-04-05
    • JP2010213648
    • 2010-09-24
    • Shin-Etsu Chemical Co Ltd信越化学工業株式会社
    • YOSHIDA MAKOTO
    • C03B8/04C03B20/00F23D14/58
    • C03B32/00C03B19/1423C03B37/0142C03B2207/12C03B2207/14C03B2207/20F23D91/02F23D2900/21005
    • PROBLEM TO BE SOLVED: To provide a quartz glass burner that is capable of enhancing the heating power of flame working without unnecessarily increasing the flow of combustion gas and improving the deposition efficiency of a porous glass preform.SOLUTION: The quartz glass burner includes: a plurality of small-diameter supporting gas ejecting ports 1 that are concentrically arranged in a single or plurality of rows around the central axis of the burner; and a combustion gas ejecting port 2 that includes the small-diameter supporting gas ejecting ports 1, provided that the inner shape of a tip of the combustion gas ejecting port 2 fits the shape of an outermost row of the small-diameter supporting gas ejecting ports 1.
    • 要解决的问题:提供一种能够提高火焰加工的加热功率的石英玻璃燃烧器,而不会不必要地增加燃烧气体的流动并提高多孔玻璃预制件的沉积效率。 解决方案:石英玻璃燃烧器包括:多个小直径支撑气体喷射口1,其围绕燃烧器的中心轴线同心地排列成一排或多列; 以及燃烧气体喷射口2,其包括小直径支撑气体喷射口1,只要燃烧气体喷射口2的前端的内部形状适合于小直径支撑气体喷射口1的最外排的形状 1.版权所有(C)2012,JPO&INPIT
    • 69. 发明专利
    • Method for producing porous glass preform
    • 生产多孔玻璃预制件的方法
    • JP2012041227A
    • 2012-03-01
    • JP2010183091
    • 2010-08-18
    • Sumitomo Electric Ind Ltd住友電気工業株式会社
    • YAGI KANTA
    • C03B37/018C03B8/04
    • C03B37/01406C03B37/0142C03B2207/06C03B2207/20C03B2207/22Y02P40/57
    • PROBLEM TO BE SOLVED: To provide a method for producing a high quality porous glass preform free from cracking without flickering a flame from an oxyhydrogen flame burner.SOLUTION: The method for producing a porous glass preform 11 comprises subjecting a glass raw material blown off from an oxyhydrogen flame burner 17 to flame hydrolysis at the inside 15a of a vessel 15, and depositing formed porous glass 11 on a starting member 13, wherein a flow rate of a seal gas is controlled so that the total amount of the gaseous glass raw material, a combustible gas, a combustion supporting gas and the seal gas each supplied to the oxyhydrogen flame burner 17 is made constant during porous glass deposition, and the inside 15a of the vessel 15 is kept under a constant negative pressure.
    • 要解决的问题:提供一种生产高质量多孔玻璃预制件的方法,该预成型件不会从氢氧焰火焰炉中闪烁火焰而不起裂。 解决方案:多孔玻璃预成型体11的制造方法包括使从氢氧焰火焰器17吹出的玻璃原料在容器15的内部15a进行火焰水解,并将形成的多孔玻璃11放置在起始构件 如图13所示,其中控制密封气体的流量,使得在多孔玻璃中使气体玻璃原料,可燃性气体,燃烧支持气体和各自供给到氢氧焰燃烧器17的密封气体的总量保持恒定 沉积,并且容器15的内部15a保持在恒定的负压下。 版权所有(C)2012,JPO&INPIT
    • 70. 发明专利
    • Method for manufacturing optical fiber preform
    • 制造光纤预制件的方法
    • JP2011225413A
    • 2011-11-10
    • JP2010099316
    • 2010-04-23
    • Furukawa Electric Co Ltd:The古河電気工業株式会社
    • ARAI SHINICHIARIMA KIYOSHIASAO MASASHI
    • C03B37/018C03B8/04
    • C03B37/0142C03B2207/06C03B2207/12C03B2207/20C03B2207/24
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical fiber preform that can efficiently form good soot body in a short time by optimizing soot-forming conditions, and can reduce a manufacturing cost.SOLUTION: The method for manufacturing an optical fiber preform includes a step of depositing glass fine particles on a target rod by a OVD method using a multinozzle burner 10. The velocities of a combustion auxiliary gas and a combustible gas are controlled so as to satisfy the relations: |V-V|>|V-V|, V≥Vand V≤40 m/s, wherein Vdenotes a velocity of the combustion auxiliary gas discharged from first injection channels 121 of the combustion auxiliary gas annularly arranged outside a raw material gas injection channel 11, Vdenotes a velocity of the combustible gas in the vicinity of the first injection channels 121 of the combustion auxiliary gas, Vdenotes a velocity of the combustion auxiliary gas discharged from second injection channels 122 of the combustion auxiliary gas annularly arranged outside the first injection channels 121 of the combustion auxiliary gas, and Vdenotes a velocity of the combustible gas in the vicinity of the second injection channels 122 of the combustion auxiliary gas.
    • 解决的问题:提供一种通过优化烟灰形成条件在短时间内有效地形成良好的烟灰体的光纤预制棒的制造方法,并且可以降低制造成本。 解决方案:制造光纤预制棒的方法包括通过使用多喷嘴10的OVD方法将玻璃微粒沉积在目标棒上的步骤。燃烧辅助气体和可燃气体的速度被控制为 为了满足以下关系:¾V -V 如果¾>¾V os ¾,V ≥V和V ≤40m/ s,其中V 是表示从燃烧助剂的第一注入通道121排出的燃烧辅助气体的速度 如果表示燃烧辅助气体的第一喷射通道121附近的可燃气体的速度,V os 表示从燃烧器的第二喷射通道122排出的燃烧辅助气体的速度 n个辅助气体,其环状布置在燃烧辅助气体的第一喷射通道121的外部,并且的V 表示可燃气体在第二喷射通道122附近的速度 燃烧辅助气体。 版权所有(C)2012,JPO&INPIT