VERFAHREN ZUR HERSTELLUNG EINER SILIZIUMOXIDSUSPENSION

    公开(公告)号:WO2021013876A1

    公开(公告)日:2021-01-28

    申请号:PCT/EP2020/070646

    申请日:2020-07-22

    Abstract: Die vorliegende Erfindung betrifft ein Verfahren zum Herstellen einer Siliziumdioxidsuspension beinhaltend die Verfahrensschritte: Bereitstellen eines Siliziumdioxidpulvers und einer Flüssigkeit; Mischen des Siliziumdioxidpulvers mit der Flüssigkeit unter Erhalt einer Aufschlämmung; Behandeln der Aufschlämmung mit Ultraschall unter Erhalt einer Vorläufersuspension; Leiten zumindest eines Teils der Vorläufersuspension durch eine erste mehrstufige Filtervorrichtung, wobei die erste mehrstufige Filtervorrichtung zumindest eine erste, eine zweite und eine dritte Filterstufe aufweist, wobei jede Filterstufe mindestens einen Filter beinhaltet wobei die zweite Filterstufe stromabwärts von der ersten Filterstufe und die dritte Filterstufe stromabwärts von der zweiten Filterstufe angeordnet ist, wobei die erste Filterstufe eine Filterfeinheit von 5 μm oder mehr, wobei die zweite Filterstufe eine Filterfeinheit in einem Bereich von 0,5 bis 5 μm aufweist, wobei die dritte Filterstufe eine Filterfeinheit von 1 μm oder weniger aufweist, und wobei mindestens eine der Filterstufen ausgewählt aus der ersten, zweiten und dritten Filterstufe eine Abscheiderate von 99,5% oder mehr aufweist. Die Erfindung betrifft auch eine so erhältlich Siliziumdioxidsuspension, daraus erzeugbare Granulate und Folgeprodukte.

    VERFAHREN ZUR HERSTELLUNG EINER HOHLKERNFASER UND ZUR HERSTELLUNG EINER VORFORM FÜR EINE HOHLKERNFASER

    公开(公告)号:WO2021009224A1

    公开(公告)日:2021-01-21

    申请号:PCT/EP2020/069996

    申请日:2020-07-15

    Abstract: Es sind Verfahren zur Herstellung einer Antiresonanten Hohlkernfaser bekannt, die einen sich entlang einer Faser-Längsachse erstreckenden Hohlkern und einen den Hohlkern umgebenden inneren Mantelbereich aufweist, der mehrere Antiresonanzelemente umfasst. Die bekannten Verfahren umfassen die Verfahrensschritte: des Bereitstellens eines Hüllrohres, das eine Hüllrohr- Innenbohrung und eine Hüllrohr-Längsachse aufweist, entlang der sich eine von einer Innenseite und einer Außenseite begrenzte Hüllrohr-Wandung erstreckt; des Bereitstellens einer Anzahl von rohrförmigen Antiresonanzelement-Vorformlingen; des Anordnens der Antiresonanzelement-Vorformlinge an Soll-Positionen der Innenseite der Hüllrohr-Wandung unter Bildung einer primären Vorform, die einen hohlen Kernbereich und einen inneren Mantelbereich aufweist; der Weiterverarbeitung der primären Vorform zu einer sekundären Vorform, wobei die Weiterverarbeitung ein Elongieren umfasst, und des Ziehens der sekundären Vorform zu der Hohlkernfaser. Um hiervon ausgehend eine hohe Präzision und eine exakte Positionierung der Antiresonanzelemente in einer ausreichend stabilen und reproduzierbaren Weise zu erreichen, wird erfindungsgemäß vorgeschlagen, dass beim Elongieren der primären Vorform mindestens einem Teil der vormaligen rohrförmigen Antiresonanzelement-Vorformlinge der primären Vorform eine ovale Außenquerschnittsform aufgeprägt wird, indem im hohlen Kernbereich und in den rohrförmigen Antiresonanzelement-Vorformlingen derselbe Innendruck erzeugt und aufrechterhalten wird.

    FORMATION OF ELONGATED GLASS COMPONENTS WITH LOW BOW USING A GRIPPER DEVICE
    3.
    发明申请
    FORMATION OF ELONGATED GLASS COMPONENTS WITH LOW BOW USING A GRIPPER DEVICE 审中-公开
    使用剥皮装置形成具有低熔点的长边玻璃组件

    公开(公告)号:WO2016118144A1

    公开(公告)日:2016-07-28

    申请号:PCT/US2015/012471

    申请日:2015-01-22

    Abstract: Apparatus and method for producing elongated glass components with low bow. The apparatus may include a heating element to heat a bulk glass component where a strand may be drawn from the bulk glass component in a downward direction and a gripper device including a clamping element to support the strand while pulling or drawing it from the bulk glass component in a linear motion, and a low- friction mounting element attached to the clamping element which allows translational movement of the clamping element in an x-y plane. The gripper device may further be used to reduce bow in the strand while it is being drawn by moving the clamping element on the mounting element in a direction opposite the direction of any measured transverse acceleration.

    Abstract translation: 用于生产具有低弓的细长玻璃部件的装置和方法。 该装置可以包括加热元件以加热块状玻璃部件,其中股线可以从向下的方向从块状玻璃部件拉出;以及夹持器件,其包括夹持元件,以在从大量玻璃部件拉拔的同时支撑该股线 以及连接到夹持元件的低摩擦安装元件,其允许夹紧元件在XY平面中的平移运动。 夹持装置可以进一步用于在通过沿与任何测量的横向加速度的方向相反的方向将夹紧元件移动到安装元件上而被拉伸时减少股线中的弓。

    GLASS LAMINATE HAVING INCREASED STRENGTH
    4.
    发明申请
    GLASS LAMINATE HAVING INCREASED STRENGTH 审中-公开
    增加强度的玻璃层压板

    公开(公告)号:WO2016055524A3

    公开(公告)日:2016-06-02

    申请号:PCT/EP2015073160

    申请日:2015-10-07

    Applicant: SCHOTT AG

    Abstract: The invention relates to a method for producing a glass article having a compressive stress zone close to the surface by redrawing a preform having a rectangular cross-section. The preform comprises at least a first and a second glass, wherein both glasses are not connected to each other in the preform in a force-fitting manner. The second glass has a higher thermal expansion coefficient than the first glass and is located in the preform in the interior of the glass tube of the first glass. The invention further relates to a glass laminate having increased strength, which is composed as an at least three-layer composite material of at least two different glasses. The individual layers of the layer composite are connected to each other over the entire area and in a non-positive manner, in particular by melting, and the glass laminate has a thermally stable compressive stress zone in the areas close to the surface of the layer composite and a tensile stress zone in the inner region of the layer composite.

    Abstract translation: 本发明涉及一种方法,用于通过重新绘制具有矩形横截面的预成型体制造用表面撇取压缩应力区中的玻璃制品。 所述预制件包括至少第一和第二玻璃,其中,所述两个镜头不积极地在预制件彼此连接。 所述第二玻璃具有比第一玻璃更高的热膨胀系数,并位于所述第一玻璃的玻璃管的内部的预成型件。 此外,本发明涉及一种玻璃层叠体具有增加的强度,其被构造为至少两个不同的玻璃的至少三层的复合物。 层压体的各层是完全平坦的和非正,特别是通过熔融,相互连接和玻璃层叠体的区域中的层叠体的表面和在层复合材料上的内部区域的拉伸应力附近的热稳定的压缩应力区。

    METHOD FOR FORMING OPAQUE QUARTZ GLASS COMPONENTS
    5.
    发明申请
    METHOD FOR FORMING OPAQUE QUARTZ GLASS COMPONENTS 审中-公开
    用于形成OPAQUE QUARTZ玻璃组件的方法

    公开(公告)号:WO2015099659A1

    公开(公告)日:2015-07-02

    申请号:PCT/US2013/077505

    申请日:2013-12-23

    CPC classification number: C03B23/053 C03B19/066 C03B23/00 C03B23/047 C03B23/07

    Abstract: A method of forming an opaque quartz glass component is provided. The method includes (a) providing a starting preform made of quartz glass; (b) heating at least a portion of the starting preform to a predetermined temperature at which the quartz glass of the starting preform has a viscosity in a range of 10E2 to 10E12 poise; and (c) deforming at least a portion of the heated preform at the predetermined temperature to change a shape and/or dimension(s) of the heated perform in order to form the opaque quartz glass component. The starting preform and the heated preform have respective densities of at least 2.15 g/cm 3 and at least 2.10 g/cm 3 . The starting perform and the opaque quartz glass component have respective direct spectral transmissions of approximately 0.1-1% and 0.2-3% in the wavelength range of λ=190 nm to λ=4990 nm at a wall thickness of 3 mm and a diffuse reflectance of at least 60% in a wavelength range of λ=190 nm to λ=2500 nm.

    Abstract translation: 提供了形成不透明石英玻璃部件的方法。 该方法包括(a)提供由石英玻璃制成的起始预制件; (b)将起始预型件的至少一部分加热到预定温度,在预定温度下,起始预型件的石英玻璃的粘度在10E2至10E12泊的范围内; 和(c)使加热的预制件的至少一部分在预定温度下变形,以改变加热的表面的形状和/或尺寸,以便形成不透明的石英玻璃组分。 起始预成型件和加热的预制件具有至少2.15g / cm 3和至少2.10g / cm 3的相应密度。 起始性能和不透明石英玻璃组分在λ= 190nm至λ= 4990nm的波长范围内在壁厚为3mm的情况下分别具有约0.1-1%和0.2-3%的直接光谱透射率,漫反射率 在λ= 190nm至λ= 2500nm的波长范围内至少为60%。

    METHOD FOR PRODUCING A TUBE OF QUARTZ GLASS BY ELONGATING A HOLLOW CYLINDER OF QUARTZ GLASS
    6.
    发明申请
    METHOD FOR PRODUCING A TUBE OF QUARTZ GLASS BY ELONGATING A HOLLOW CYLINDER OF QUARTZ GLASS 审中-公开
    通过开发QUARTZ玻璃的中空圆筒制造石墨玻璃管的方法

    公开(公告)号:WO2006122904A3

    公开(公告)日:2007-01-04

    申请号:PCT/EP2006062241

    申请日:2006-05-11

    Inventor: BOGDAHN THOMAS

    CPC classification number: C03B37/01257 C03B37/0124 Y02P40/57

    Abstract: In a known method for producing a tube of quartz glass by elongating a hollow cylinder of quartz glass having an outer diameter AD, said cylinder is continuously supplied to a heating zone with a vertically oriented heating tube having an inner diameter d, with the proviso that the diameter ratio d/AD is set to a value ranging from 1.02 to 1.7. The hollow cylinder is softened therein zonewise, and a tubular strand is drawn off from the softened region and shortened to obtain the tube. Starting therefrom, in order to optimize the dimensional stability of the quartz glass tube obtained, it is suggested according to the invention that the heating zone should have a length L which is set such that the ratio L/d is smaller than 0.9..

    Abstract translation: 在通过延长具有外径AD的石英玻璃的中空圆筒来制造石英玻璃管的已知方法中,将所述圆筒连续地供给具有内径d的垂直取向的加热管的加热区,条件是 将直径比d / AD设定为1.02〜1.7的范围。 中空圆筒在其中被软化,并且将软管从软化区域中取出并缩短以获得管子。 从此开始,为了优化所获得的石英玻璃管的尺寸稳定性,根据本发明提出,加热区应具有设定为L / d比小于0.9的长度L.

    MANUFACTURING METHOD OF OPTICAL LENS
    8.
    发明申请
    MANUFACTURING METHOD OF OPTICAL LENS 审中-公开
    光学镜头的制造方法

    公开(公告)号:WO01035126A1

    公开(公告)日:2001-05-17

    申请号:PCT/JP2000/007955

    申请日:2000-11-10

    Abstract: A manufacturing method of an optical lens characterized by comprising a 1st optical member base material producing process in which a 1st optical member base material (40), made of 1st light transmitting material so as to have a pillar shape and having a curved-surface 1st optical action unit (11) on its side plane, is produced, a primary drawing process in which the 1st optical member base material produced in the 1st optical member base material producing process is drawn until it has a required outer diameter, and a 1st optical member producing process in which the 1st optical member base material (40) drawn in the primary drawing process is sliced to produce a pillar-shaped 1st optical member (2). Since the shape of the optical lens, particularly the shape of the 1stoptical action unit (11) can be determined in a base material stage before the primary drawing process by the manufacturing method of an optical lens like this, the base material can be processed in a sufficiently large dimension state, so that the processing works can be practiced easily and accurately.

    Abstract translation: 一种光学透镜的制造方法,其特征在于包括:第一光学构件基材制造工序,其中,由第一透光材料制成的第一光学构件基材(40)具有柱状并具有曲面的第一 光学作用单元(11)在其侧平面上被制造,其中在第一光学构件基材生产过程中制造的第一光学构件基材被拉制直到其具有所需外径的初级拉伸工艺和第一光学 在主拉延工序中拉制的第一光学部件基材(40)切片以制造柱状的第一光学部件(2)的构件制造工序。 由于光学透镜的形状,特别是第一光学单元(11)的形状可以通过这样的光学透镜的制造方法在初级拉伸处理之前的基材阶段中确定,所以可以将基材加工成 足够大的尺寸状态,使得可以容易且准确地实现加工工作。

    METHOD FOR PRODUCING A CYLINDRICAL COMPONENT COMPRISED OF SILICA GLASS AND A DEVICE SUITED THEREFOR
    9.
    发明申请
    METHOD FOR PRODUCING A CYLINDRICAL COMPONENT COMPRISED OF SILICA GLASS AND A DEVICE SUITED THEREFOR 审中-公开
    用于生产圆筒体从石英玻璃和合适的设备

    公开(公告)号:WO00061509A1

    公开(公告)日:2000-10-19

    申请号:PCT/EP2000/002506

    申请日:2000-03-22

    CPC classification number: C03B37/025 C03B23/045 C03B23/047

    Abstract: According to a prior art method for producing a cylindrical component comprised of silica glass, a cylinder comprised of a softened silica glass mass is drawn in a predetermined drawing direction along a drawing axis by means of a drawing device which acts upon said cylinder. The aim of the invention is to provide a method which prevents, to the greatest possible extent, warping of the drawn cylinder and other deviations from the ideal cylinder dimensions and to prevent, to the greatest possible extent, the outer surface of the drawn cylinder from being touched. To these ends, the invention provides that the drawing device comprises a plurality of guide elements which are arranged one behind the other along the drawing axis, and which can be displaced independently of one another in a drawing direction and in a direction opposite thereto. At least two of said guide elements which maintain an engaging distance from one another are simultaneously displaced, in a frictionally engaged manner, on the cylinder in a drawing direction and with an identical drawing speed. A device suited for carrying out the inventive method comprises a feed device, a heating zone and a drawing device by means of which a cylinder is drawn along a drawing axis and in a predetermined drawing direction with a controlled drawing speed. The drawing device comprises a number of guide elements which are arranged one behind the other along the drawing axis and which can be displaced independently of one another in a drawing direction and in a direction opposite thereto.

    Abstract translation: 在用于圆柱形石英玻璃部件的制备的公知方法,气缸由软化的石英玻璃通过质量作用于触发一个气缸的吸入装置在沿一牵引轴以预定抽出方向。 为了此基础上提供,其中可避免从理想的圆柱体几何形状尽可能抽出桶和其它偏差的曲率的方法,以及触摸吸入气缸的圆柱形外表面,以避免可能的,根据本发明,提出的是,抽出几个,沿牵引轴一个在另一个后面 并且在抽出方向和在相反方向上可独立地移动的导向元件,其中的一个的至少两个抓握从在缸彼此保持导向元件的距离被同时移动在抽出方向以相同的拉伸速度摩擦攻击布置。 适用于实施根据本发明的方法的装置包括一个进料装置,一个加热区,和一个罩,通过该气缸沿着牵引轴和以受控的拉伸速度,其中,所述触发器包括多个预定的抽出方向抽出手段,沿着连续设置的导向元件在附图轴线 在抽出方向和在相反方向上与其可移动彼此独立。

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