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66 条记录 (耗时 0.015 秒)

    Apparatus and method for processing a glass tube and glass tube obtained
    42.
    发明公开
    Apparatus and method for processing a glass tube and glass tube obtained 有权
    Vorrichtung und Verfahren zur Behandlung eines Glasrohres und das erhaltene Glasrohr

    公开(公告)号：EP1533283A3

    公开(公告)日：2006-04-26

    申请号：EP04027678.4

    申请日：2004-11-22

    申请人： Sumitomo Electric Industries, Ltd.

    发明人： Nakanishi, Tetsuya ,  Onishi, Masashi ,  Yokokawa, Tomoyuki ,  Hirano, Masaaki ,  Taira, Nobuyuki

    IPC分类号： C03B37/018 ,  C03B23/043

    CPC分类号： C03B23/043 ,  C03B37/01242 ,  C03B37/01257 ,  C03B37/01815

    摘要： In a glass processing method and apparatus according to the invention, in the case of performing chemical vapor deposition or diameter shrinkage of a substrate glass tube (G) by relatively moving a heating furnace (20) comprising a heating element (21) for annularly enclosing the circumference of the substrate glass tube in a longitudinal direction of the substrate glass tube (G) with respect to the substrate glass tube (G) in which an outer diameter is 30 mm or more and a wall thickness is 3 mm or more and is less than 15 mm and an ovality of the outer diameter is 1.0 % or less using a glass processing apparatus (1), a temperature of at least one of the heating element (21) and the substrate glass tube (G) is measured and the amount of heat generation of the heating element (21) is adjusted based on the measured temperature.
    The glass tube, processed by the method, of reduced ovality is also claimed.

    摘要翻译： 在根据本发明的玻璃加工方法和装置中，在通过相对移动包括用于环形封闭的加热元件（21）的加热炉（20）进行基板玻璃管（G）的化学气相沉积或直径收缩的情况下， 相对于外径为30mm以上且壁厚为3mm以上的基板玻璃管（G），基板玻璃管（G）的长度方向的基板玻璃管的周长为3mm以上 使用玻璃处理装置（1），小于15mm，外径的椭圆度为1.0％以下，测定加热元件（21）和基板玻璃管（G）中的至少一个的温度， 基于测量的温度来调节加热元件（21）的发热量。 还声称通过该方法处理的玻璃管具有减小的椭圆度。

    METHOD AND APPARATUS FOR MAKING OPTICAL FIBRES
    43.
    发明公开
    METHOD AND APPARATUS FOR MAKING OPTICAL FIBRES 有权
    方法和设备的光纤制造

    公开(公告)号：EP1567457A1

    公开(公告)日：2005-08-31

    申请号：EP03812204.0

    申请日：2003-12-05

    申请人： Nextrom Holding S.A.

    发明人： HOVINEN, Anssi ,  KESÄLÄ, Janne ,  SOININEN, Pekka

    IPC分类号： C03B37/018 ,  C03B37/029

    CPC分类号： C03B37/01257 ,  C03B37/0142 ,  C03B37/0146 ,  C03B37/01884 ,  C03B37/029 ,  C03B2205/81

    摘要： Method and apparatus for producing glass products of predetermined shape. In the method, a preform is introduced into a furnace and heated to a temperature above the softening point of the glass. The heated portion is subjected to tensile forces and drawn from the furnace through an outlet opening. During processing, inert gas is fed into the furnace. According to the invention, the concentration of gaseous impurities in the furnace is maintained on the same level as in the inert gas fed into the oven. To prevent inflow of undesired gaseous components from the ambient air, a diffusion barrier is established by generating a barrier flow of inert gas in the inlet or outlet openings. This barrier flow has a direction of flow, which is opposite to the direction of the diffusion. The invention provides non-contacting sealing between the furnace the preform while optimizing the consumption of protective gas. The invention also allows for simultaneous rotation of the preform.

    WIDERSTANDSOFEN
    44.
    发明公开
    WIDERSTANDSOFEN 有权
    电阻炉

    公开(公告)号：EP1468233A1

    公开(公告)日：2004-10-20

    申请号：EP02722031.8

    申请日：2002-01-24

    申请人： Heraeus Tenevo AG

    发明人： BOGDAHN, Thomas ,  GANZ, Oliver

    IPC分类号： F27B17/00 ,  F27D11/02 ,  H05B3/62

    CPC分类号： H01L21/67109 ,  C03B23/043 ,  C03B37/01257 ,  F27B9/28 ,  F27B17/00 ,  F27D7/02 ,  F27D7/06 ,  F27D11/02 ,  F27D21/0014 ,  F27D99/0073 ,  F27D2009/0045 ,  F27D2019/0025 ,  F27D2099/001 ,  H05B3/62

    摘要： A resistance furnace known per se comprises a tubular heating element (2) with a vertical longitudinal axis (3), said element having a lateral surface that is delimited by an upper and lower side and surrounding a furnace chamber. The element is connected by means of at least two electric connections, the latter enabling a heating current to be introduced at current supply points into the heating element. The aim of the invention is to develop this known furnace to obtain an electric resistance furnace, in particular a high-performance resistance furnace, which is characterised by low production and maintenance costs, in addition to high operational reliability and permits an axially and radially homogeneous temperature profile to be set inside the furnace. To achieve this, the current connections have an upper annular collar (7), located in the vicinity of the upper side (11) and a lower annular collar (8), located in the vicinity of the lower side (12).

    Burner and apparatus for over-cladding a rod pre-form with a tube for optical fibres
    45.
    发明公开
    Burner and apparatus for over-cladding a rod pre-form with a tube for optical fibres 有权
    布伦纳和用于包覆一预制棒具有用于光纤的管装置

    公开(公告)号：EP1106583A2

    公开(公告)日：2001-06-13

    申请号：EP00127114.7

    申请日：2000-12-11

    申请人： SAMSUNG ELECTRONICS Co. Ltd.

    发明人： Yang, Jin-Seong ,  Do, Mun-Hyun

    IPC分类号： C03B37/012 ,  C03B23/043 ,  F23D14/32

    CPC分类号： C03B37/01248 ,  C03B23/043 ,  C03B37/01257 ,  F23D14/32 ,  Y02P40/57

    摘要： Disclosed is a high efficiency burner 230 and an apparatus for over-cladding an optical fiber pre-form using the same. The high efficiency burner 230 heating an optical fiber pre-form includes burner covers 231, burner bodies 232 arranged between the burner covers 231, and fuel dischargers 233, 234 arranged in at least two rows between the burner bodies 232, and divided by a partition 235, respectively.

    摘要翻译： 本发明提供一种高效率的燃烧器230和装置使用相同的上敷光纤的预成型。 光纤预成型件的高效率的燃烧器230加热包括燃烧器覆盖所述燃烧器盖231，和燃料DISCH之间布置阿尔热尔233，234 231，燃烧器主体232中的燃烧器本体之间的至少两行布置232并除以分区 235，分别。

    OPTICAL FIBER PREFORM MANUFACTURING APPARATUS AND METHOD FOR SHRINKAGE AND CLOSING OF DEPOSITED TUBE
    46.
    发明公开
    OPTICAL FIBER PREFORM MANUFACTURING APPARATUS AND METHOD FOR SHRINKAGE AND CLOSING OF DEPOSITED TUBE 审中-公开
    光纤预成型制造设备和用于收缩管收缩的方法

    公开(公告)号：EP1054843A1

    公开(公告)日：2000-11-29

    申请号：EP99973285.2

    申请日：1999-11-17

    申请人： Samsung Electronics Co., Ltd.

    发明人： OH, Sung-Koog ,  SEO, Man-Seok ,  YANG, Jin-Seong ,  DO, Mun-Hyun

    IPC分类号： C03B37/027

    CPC分类号： C03B37/01248 ,  C03B37/01257 ,  C03B37/01853 ,  C03B37/01869

    摘要： Disclosed are an optical fiber preform manufacturing apparatus and method in which processes for shrinking and closing a deposited tube are conducted using a device suitable for those processes, which device is other than the device used in a deposition process for forming the deposited tube on the inner surface of a preform tube, thereby reducing the processing time while reducing the amount of OH penetrated from the preform tube into a vitreous component of the deposited tube, thereby achieving a reduction in OH loss. In accordance with the optical fiber preform manufacturing apparatus and method, operations are conducted which involve setting the heating temperature of a circular heater to a temperature lower than the softening point of a deposited tube, exhausting contaminants existing in the interior of the deposited tube while moving the circular heater at a desired temperature, setting the heating temperature of the circular heater to a temperature not lower than the softening point of the deposited tube, and shrinking and closing the deposited tube while moving the circular heater to a desired temperature.

    摘要翻译： 公开了一种光纤预制件制造设备和方法，其中使用适用于那些工艺的设备进行收缩和闭合沉积管的工艺，该设备不同于用于在内部形成沉积管的沉积工艺中使用的设备 从而减少了处理时间，同时减少了从预成形管渗透入沉积管玻璃成分中的OH的量，从而实现了OH损失的降低。 根据光纤预制棒制造设备和方法，进行的操作包括将圆形加热器的加热温度设定为低于沉积管软化点的温度，从而在移动的同时排出存在于沉积管内部的污染物 将圆形加热器加热到期望的温度，将圆形加热器的加热温度设定为不低于沉积管软化点的温度，并且在将圆形加热器移动到期望温度的同时收缩和闭合沉积的管。

    Method for producing glass preform for optical fiber
    50.
    发明公开
    Method for producing glass preform for optical fiber 失效
    法希恩（Verfahren zum Herstellen einer Glasvorformfüroptische Fasern）。

    公开(公告)号：EP0501429A1

    公开(公告)日：1992-09-02

    申请号：EP92103199.3

    申请日：1992-02-25

    申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD

    发明人： Ito, Masumi, c/o Yokohama Works of ,  Kanamori, Hiroo, c/o Yokohama Works of ,  Danzuka, Toshio, c/o Yokohama Works of ,  Yokota, Hiroshi, c/o Yokohama Works of

    IPC分类号： C03B37/012

    CPC分类号： C03B37/01248 ,  C03B37/01211 ,  C03B37/01257 ,  C03B2201/31 ,  C03B2201/42

    摘要： A glass preform for use in the fabrication of an optical fiber having a low transmission loss is produced by inserting a glass rod as a core material in a glass tube as a cladding material having a lower refractive index than that of the core material, and heating the so formed composite of the glass rod and the glass tube from the outside after filling a mixed gas containing a halogen-containing gas and oxygen gas in a space between the glass rod and the glass tube to fuse them together to produce the glass preform. Formation of bubbles in the glass preform is thereby suppressed.

    摘要翻译： 通过将作为芯材的玻璃棒作为具有低于芯材折射率的折射率的包层材料的玻璃管中插入，制造具有低传输损耗的光纤的玻璃预制棒，并且加热 在玻璃棒和玻璃管之间的空间中填充含有含卤素气体和氧气的混合气体之后，从外部形成玻璃棒和玻璃管的复合物，将它们熔合在一起，制成玻璃预制件。 由此抑制了玻璃预成型体中的气泡的形成。