公开(公告)号：US08613207B2

公开(公告)日：2013-12-24

申请号：US12737302

申请日：2009-06-25

申请人： Helmut Leber ,  Rainer Berg ,  Nigel Whippey

发明人： Helmut Leber ,  Rainer Berg ,  Nigel Whippey

IPC分类号： C03B15/14

CPC分类号： C03B17/04 ,  C03B5/0336 ,  C03B5/182

摘要： In a known method for drawing a tubular quartz glass strand, SiO2-containing starting material is fed to a melting crucible, softened therein into a viscous quartz glass mass (27), and said mass is pulled vertically downward as a cylindrical quartz glass strand (5; 33) through a die (4; 34) provided in the bottom region of the melting crucible (1), said die having a gap-shaped outlet (25; 36), which is defined by a bottom opening and a die inside part, and thereafter the quartz glass cylinder is cut to length. In order to provide a method starting from this which facilitates the production of homogeneous quartz glass cylinders, even if the lateral dimensions thereof are in the range of the inside diameters of conventional melting crucibles (1), according to the invention the viscous quartz glass mass is drawn over a flow constriction (12; 32) provided in an upper region of the die (4; 34) and leading downward into the outlet (25; 36) via a flow channel, said region facing the crucible interior, wherein the outlet has an opening width that is larger than the width of the flow constriction (12; 32), and wherein a first minimum circumscribed circle around the flow constriction (12; 32) has a diameter that is a maximum of 30% of the diameter of a second minimum circumscribed circle around the quartz glass strand (5; 33) to be drawn. The invention further relates to a corresponding apparatus.

摘要翻译： 在已知的用于拉制管状石英玻璃线的方法中，将含SiO 2的起始材料供给到熔化的坩埚中，在其中软化成粘性石英玻璃块（27），并将所述物质作为圆柱形石英玻璃绞线垂直向下拉（ 5; 33）通过设置在熔化坩埚（1）的底部区域中的模具（4; 34），所述模具具有间隙形出口（25; 36），其由底部开口和模具内部限定 然后将石英玻璃圆筒切割成长度。 为了提供一种便于生产均质石英玻璃圆筒的方法，即使其横向尺寸在常规熔化坩埚（1）的内径范围内，根据本发明，粘性石英玻璃质量 被设置在模具（4; 34）的上部区域中的流动收缩部（12; 32）上，并经由流动通道向下流入出口（25; 36），所述区域面向坩埚内部，其中出口 具有大于所述流动收缩部（12; 32）的宽度的开口宽度，并且其中所述流动收缩部（12; 32）周围的第一最小限定圆的直径为所述流动收缩部（12; 32）的直径的最大值的30％ 围绕要被拉伸的石英玻璃绞线（5; 33）的第二最小外接圆。 本发明还涉及相应的装置。

公开(公告)号：US07955715B2

公开(公告)日：2011-06-07

申请号：US11642349

申请日：2006-12-20

申请人： Martin Trommer ,  Rainer Berg ,  Nigel Whippey ,  Helmut Leber ,  Joerg Becker

发明人： Martin Trommer ,  Rainer Berg ,  Nigel Whippey ,  Helmut Leber ,  Joerg Becker

IPC分类号： B32B15/04 ,  C03B37/00

CPC分类号： C03B5/1675 ,  C23C4/08 ,  C23C4/134 ,  Y10T428/12292 ,  Y10T428/12771 ,  Y10T428/1284

摘要： In a known method for coating a crucible for use at a high working temperature in a crucible drawing method for quartz glass, a base body wall of tungsten has applied thereto a protective layer containing a coating metal consisting of the group selected from iridium, rhenium, osmium and ruthenium. Starting therefrom, to provide a method for producing such a component exhibiting high corrosion resistance to the quartz glass melt at low material costs, it is suggested according to the invention that the protective layer should be produced from a layer material which contains tungsten and the coating metal, and in which the amount of the coating metal should be dimensioned such that it exceeds the limit amount of a coating metal-rich phase boundary of a solid mixture phase of tungsten and the coating metal, with the solid mixture phase being thermodynamically stable at the working temperature, by not more than 25 at. % (based on the total amount of tungsten and the coating metal in the layer material).

摘要翻译： 在用于石英玻璃的坩埚拉拔方法中用于涂覆在高工作温度下使用的坩埚的已知方法中，钨基体壁向其施加保护层，该保护层含有由选自铱，铼， 锇和钌。 从其开始，为了提供一种以低材料成本制造对石英玻璃熔体具有高耐腐蚀性的组分的方法，根据本发明，建议保护层应由含钨的层材料和涂层 金属，并且其中涂层金属的量的尺寸应使其超过钨和涂覆金属的固体混合物相的涂覆金属富集相边界的极限量，其中固体混合物相在热力学上稳定在 工作温度不超过25℃。 ％（基于钨层和层材料中涂层金属的总量）。

公开(公告)号：US20110113829A1

公开(公告)日：2011-05-19

申请号：US12737302

申请日：2009-06-25

申请人： Helmut Leber ,  Rainer Berg ,  Nigel Whippey

发明人： Helmut Leber ,  Rainer Berg ,  Nigel Whippey

IPC分类号： C03B17/04 ,  C03B5/16

CPC分类号： C03B17/04 ,  C03B5/0336 ,  C03B5/182

摘要： In a known method for drawing a tubular quartz glass strand, SiO2-containing starting material is fed to a melting crucible, softened therein into a viscous quartz glass mass (27), and said mass is pulled vertically downward as a cylindrical quartz glass strand (5; 33) through a die (4; 34) provided in the bottom region of the melting crucible (1), said die having a gap-shaped outlet (25; 36), which is defined by a bottom opening and a die inside part, and thereafter the quartz glass cylinder is cut to length. In order to provide a method starting from this which facilitates the production of homogeneous quartz glass cylinders, even if the lateral dimensions thereof are in the range of the inside diameters of conventional melting crucibles (1), according to the invention the viscous quartz glass mass is drawn over a flow constriction (12; 32) provided in an upper region of the die (4; 34) and leading downward into the outlet (25; 36) via a flow channel, said region facing the crucible interior, wherein the outlet has an opening width that is larger than the width of the flow constriction (12; 32), and wherein a first minimum circumscribed circle around the flow constriction (12; 32) has a diameter that is a maximum of 30% of the diameter of a second minimum circumscribed circle around the quartz glass strand (5; 33) to be drawn. The invention further relates to a corresponding apparatus.

摘要翻译： 在已知的用于拉制管状石英玻璃线的方法中，将含SiO 2的起始材料供给到熔化的坩埚中，在其中软化成粘性石英玻璃块（27），并将所述物质作为圆柱形石英玻璃绞线垂直向下拉（ 5; 33）通过设置在熔化坩埚（1）的底部区域中的模具（4; 34），所述模具具有间隙形出口（25; 36），其由底部开口和模具内部限定 然后将石英玻璃圆筒切割成长度。 为了提供一种便于生产均质石英玻璃圆筒的方法，即使其横向尺寸在常规熔化坩埚（1）的内径范围内，根据本发明，粘性石英玻璃质量 被设置在模具（4; 34）的上部区域中的流动收缩部（12; 32）上，并经由流动通道向下流入出口（25; 36），所述区域面向坩埚内部，其中出口 具有大于所述流动收缩部（12; 32）的宽度的开口宽度，并且其中所述流动收缩部（12; 32）周围的第一最小限定圆的直径为所述流动收缩部（12; 32）的直径的最大值的30％ 围绕要被拉伸的石英玻璃绞线（5; 33）的第二最小外接圆。 本发明还涉及相应的装置。

公开(公告)号：US20070178329A1

公开(公告)日：2007-08-02

申请号：US11642349

申请日：2006-12-20

申请人： Martin Trommer ,  Rainer Berg ,  Nigel Whippey ,  Helmut Leber ,  Joerg Becker

发明人： Martin Trommer ,  Rainer Berg ,  Nigel Whippey ,  Helmut Leber ,  Joerg Becker

IPC分类号： B05D1/36 ,  C23C4/08 ,  F01D5/18

CPC分类号： C03B5/1675 ,  C23C4/08 ,  C23C4/134 ,  Y10T428/12292 ,  Y10T428/12771 ,  Y10T428/1284

摘要： In a known method for coating a crucible for use at a high working temperature in a crucible drawing method for quartz glass, a base body wall of tungsten has applied thereto a protective layer containing a coating metal consisting of the group selected from iridium, rhenium, osmium and ruthenium. Starting therefrom, to provide a method for producing such a component exhibiting high corrosion resistance to the quartz glass melt at low material costs, it is suggested according to the invention that the protective layer should be produced from a layer material which contains tungsten and the coating metal, and in which the amount of the coating metal should be dimensioned such that it exceeds the limit amount of a coating metal-rich phase boundary of a solid mixture phase of tungsten and the coating metal, with the solid mixture phase being thermodynamically stable at the working temperature, by not more than 25 at. % (based on the total amount of tungsten and the coating metal in the layer material).

摘要翻译： 在用于石英玻璃的坩埚拉拔方法中用于涂覆在高工作温度下使用的坩埚的已知方法中，钨基体壁向其施加保护层，该保护层含有由选自铱，铼， 锇和钌。 从其开始，为了提供一种以低材料成本制造对石英玻璃熔体具有高耐腐蚀性的组分的方法，根据本发明，建议保护层应由含钨的层材料和涂层 金属，并且其中涂层金属的量的尺寸应使其超过钨和涂覆金属的固体混合物相的涂覆金属富集相边界的极限量，其中固体混合物相在热力学上稳定在 工作温度不超过25℃。 ％（基于钨层和层材料中涂层金属的总量）。

公开(公告)号：US20120174629A1

公开(公告)日：2012-07-12

申请号：US13381050

申请日：2010-06-15

申请人： Helmut Leber ,  Rainer Berg ,  Nigel Whippey

发明人： Helmut Leber ,  Rainer Berg ,  Nigel Whippey

IPC分类号： C03B17/04

CPC分类号： C03B17/04 ,  Y02P40/57

摘要： The invention relates to a known method for drawing a quartz glass cylinder from a melt crucible comprising an inner crucible chamber extending in the direction of a center crucible axis and bounded by a side wall and a floor, wherein SiO2 granulate is fed into the melt crucible and therein softened into a quartz glass mass, and said mass is drawn vertically downward as a cylindrical quartz glass strand by means of a first draw-off device through a first draw nozzle provided in the floor of the melt crucible, and the quartz glass cylinder is cut off therefrom. In order to disclose a method starting herefrom and allowing the production of homogenous quartz glass cylinder at simultaneously high levels of productivity, the invention proposes that at least one second quartz glass strand is drawn off through at least one further second draw nozzle provided in the floor of the melt crucible, wherein the first draw nozzle and the second draw nozzle are disposed eccentrically to the center crucible axis and at a distance from each other.

摘要翻译： 本发明涉及一种用于从熔融坩埚中抽取石英玻璃圆筒的公知方法，所述熔融坩埚包括沿中心坩埚轴线方向延伸并由侧壁和底板限定的内坩埚室，其中SiO 2颗粒被送入熔融坩埚 并且在其中软化成石英玻璃物质，并且所述物质通过设置在熔融坩埚的地板中的第一牵引喷嘴借助于第一牵引装置作为圆柱形石英玻璃绳垂直向下拉动，并且石英玻璃圆筒 被切断。 为了公开一种从此开始的方法，并允许以同时高的生产率生产均匀的石英玻璃圆筒，本发明提出，至少一个第二石英玻璃丝线通过设置在地板中的至少一个另外的第二个拉伸喷嘴被抽出 所述第一拉丝喷嘴和所述第二拉伸喷嘴相对于所述中心坩埚轴偏心设置并且彼此间隔一定距离。

公开(公告)号：US20090064715A1

公开(公告)日：2009-03-12

申请号：US11920370

申请日：2007-03-07

申请人： Roland Horn ,  Helmut Leber ,  Martin Trommer ,  Nigel Whippey ,  Rainer Berg ,  Joerg Becker ,  Rolf Gerhardt

发明人： Roland Horn ,  Helmut Leber ,  Martin Trommer ,  Nigel Whippey ,  Rainer Berg ,  Joerg Becker ,  Rolf Gerhardt

IPC分类号： C03B23/047

CPC分类号： C03B17/04 ,  C03B5/0336

摘要： In a known method for drawing a tubular quartz glass strand, a crucible is fed with SiO2-containing start material, the start material is softened in the crucible and, as a softened quartz glass mass, is drawn vertically downwards as a tubular quartz glass strand along a drawing axis through an annular gap between an outer member and an inner member, which is arranged in a through hole of the outer member, of a drawing nozzle provided in the bottom area of the crucible. To improve the known method with respect to less inhomogeneity in the drawn-off tubular strand and thereby to permit the manufacture of homogeneous, defect-free hollow cylinders of quartz glass by drawing from the melt, it is suggested according to the invention that the inner member of the drawing nozzle, viewed in the direction of the drawing axis, is held suspended and radially movable inside the through hole of the outer member, and that the annular gap of the drawing nozzle has a longitudinal section “L” in which its cross-sectional nozzle area is reduced in size from the top to the bottom.

摘要翻译： 在已知的用于拉制管状石英玻璃绞线的方法中，向坩埚供给含有SiO 2的起始材料，起始材料在坩埚中软化，并且作为软化石英玻璃块，作为管状石英玻璃绞线垂直向下拉 沿着图示轴线，设置在坩埚的底部区域中的设置在外部构件的通孔中的外部构件和内部构件之间的环形间隙。 为了改进已知的方法，关于拉出的管状股线中的较小的不均匀性，从而允许通过从熔体中拉拔来制造均匀的，无缺陷的石英玻璃中空圆柱体，根据本发明，建议内部 从拉伸轴方向观察的拉丝喷嘴的构件被保持在外部构件的通孔内部并可径向移动，并且拉伸喷嘴的环形间隙具有纵向截面“L”，其横截面 截面喷嘴面积从顶部到底部减小。

公开(公告)号：US20110281227A1

公开(公告)日：2011-11-17

申请号：US12998904

申请日：2009-12-09

申请人： Bernhard Franz ,  Nigel Whippey ,  Joerg Becker ,  Helmut Leber

发明人： Bernhard Franz ,  Nigel Whippey ,  Joerg Becker ,  Helmut Leber

IPC分类号： F27B14/10

CPC分类号： C03B5/43 ,  C03B5/0336 ,  C03B5/1672

摘要： In a known melting crucible for use in a crucible drawing method, it is provided that the interior face of the crucible wall facing a crucible interior space is covered at least partially with a protective layer made of a noble metal. The known melting crucible does have good corrosion resistance with respect to the quartz glass melt, but the material costs are high because of the expensive coating metals. In order to provide a melting crucible for use in a crucible drawing method for quartz glass that exhibits good corrosion resistance at low material costs, it is proposed that the protective layer (2) be composed of a gas-tight, oxidic material that is not subject to a phase transition in the temperature range of 20° C. to 1800° C., and that the crucible interior space (17) have a gas space (17) above the quartz glass mass (27) to be held, and that the protective layer (2) be provided exclusively on the surface of the melting crucible interior face adjacent to the gas space (17).

摘要翻译： 在用于坩埚拉制方法的已知的熔化坩埚中，提供了面对坩埚内部空间的坩埚壁的内表面至少部分地被贵金属制成的保护层覆盖。 已知的熔化坩埚相对于石英玻璃熔体确实具有良好的耐腐蚀性，但是由于昂贵的涂层金属，材料成本较高。 为了提供一种用于石英玻璃的坩埚拉拔方法的熔融坩埚，其在低材料成本下表现出良好的耐腐蚀性，提出保护层（2）由不是气密的氧化材料组成 在20℃至1800℃的温度范围内进行相变，并且坩埚内部空间（17）在要保持的石英玻璃块（27）的上方具有气体空间（17），并且 保护层（2）仅专门设置在与气体空间（17）相邻的熔化坩埚内表面上。

公开(公告)号：US5904182A

公开(公告)日：1999-05-18

申请号：US543110

申请日：1995-10-13

申请人： Poul E. Breidenbach ,  Heinz Herzog ,  Helmut Leber ,  Jurgen Pottker

发明人： Poul E. Breidenbach ,  Heinz Herzog ,  Helmut Leber ,  Jurgen Pottker

IPC分类号： C03B23/207 ,  C03B23/213 ,  F16L9/10 ,  F16L49/00

CPC分类号： F16L9/105 ,  C03B23/207 ,  C03B23/213 ,  F16L49/00

摘要： A preferred embodiment of the present invention comprises a vitreous quartz pipe or container having a connector including a flange formed from at least one strip or rod-shaped piece of transparent quartz glass which is wound circumferentially around either an inner or outer surface of a portion of the pipe or container and secured to the pipe or container to thereby form a closed-ring flange. The portion of the pipe or container having the attached flange may be an open end of the pipe or container or may be a wall portion where a connector for mounting to fixtures or other fittings may be desired. This type of strip or rod-shaped piece of quartz glass can be made via a conventional pulling technique such that a strip or rod having the appropriate uniform cross-sectional shape is obtained. The prepared strips or rod-shaped pieces are then easily cut with a saw device to appropriate lengths. According to a preferred method of the present invention, a small portion of a strip or rod-shaped piece of transparent quartz glass is made pliable with the direct application of heat. As the portion of the strip or rod-shaped piece of quartz glass becomes pliable, the strip or rod-shaped piece of quartz glass is made to conform to the curvature of the underlying inner or outer pipe or container surface.

摘要翻译： 本发明的一个优选实施例包括玻璃状石英管或容器，该玻璃石英管或容器具有连接器，该连接器包括由至少一个透明石英玻璃条或棒状片形成的凸缘，所述凸缘或棒状片透明石英玻璃的一部分的内表面或外表面围绕 管或容器并固定到管或容器，从而形成闭环凸缘。 具有附接的凸缘的管或容器的部分可以是管或容器的开口端，或者可以是壁部，其中可能需要用于安装到固定装置或其它配件的连接器。 这种类型的条状或棒状的石英玻璃片可以通过常规的拉拔技术制成，从而获得具有适当的均匀横截面形状的条带。 然后用锯装置容易地将制备好的条或条形件切割成合适的长度。 根据本发明的优选方法，通过直接施加热量，可以使一小部分透明石英玻璃条或条状片变得柔软。 随着条状或棒状石英玻璃片的部分变得柔软，使得条状或棒状的石英玻璃片被制成符合下面的内管或外管或容器表面的曲率。

公开(公告)号：US4923497A

公开(公告)日：1990-05-08

申请号：US312258

申请日：1989-02-17

申请人： Helmut Leber ,  Nigel R. Whippey

发明人： Helmut Leber ,  Nigel R. Whippey

IPC分类号： C03B3/00 ,  C03B5/02 ,  C03B5/033 ,  C03B17/04 ,  C03B20/00

CPC分类号： C03B5/0336 ,  C03B17/04 ,  C03B20/00 ,  C03B3/00 ,  C03B5/02 ,  C03B5/021 ,  Y10S65/04 ,  Y10S65/09

摘要： A method for the continuous production of a tube or rod of vitreous fused silica. Silicon dioxide in particle form is heated in a crucible to the softening temperature and is withdrawn contiuously downward from a bottom outlet opening in which a shaping tool is disposed. In the annular space between the shaping tool and the bottom outlet opening the softened silicon dioxide is subjected to an electrical field. In the closed crucible, a hydrogen-containing atmosphere with a hydrogen content of at least 80% is sustained above the silicon dioxide and in the space underneath the crucible that adjoins the shaping region.

摘要翻译： 用于连续生产玻璃状熔融石英管或棒的方法。 将颗粒形式的二氧化硅在坩埚中加热至软化温度，并从其中设置成形工具的底部出口开口向下抽出。 在成形工具和底部出口之间的环形空间中，软化的二氧化硅受到电场的影响。 在封闭的坩埚中，含氢量至少为80％的含氢气氛在二氧化硅的上方和邻接成形区域的坩埚下面的空间内被维持。

公开(公告)号：US20110183138A1

公开(公告)日：2011-07-28

申请号：US12737468

申请日：2009-07-16

申请人： Martin Trommer ,  Stefan Ochs ,  Juergen Weber ,  Waltraud Werdecker ,  Norbert Traeger ,  Helmut Leber

发明人： Martin Trommer ,  Stefan Ochs ,  Juergen Weber ,  Waltraud Werdecker ,  Norbert Traeger ,  Helmut Leber

IPC分类号： C03B20/00 ,  C03B17/04 ,  C03B19/06 ,  C03B19/09

CPC分类号： C03B19/1095 ,  C03B17/04 ,  C03B19/095 ,  C03B19/106 ,  C03B2201/24 ,  Y02P40/57 ,  Y10T428/268 ,  Y10T428/2982

摘要： In a known method for producing quartz glass that is doped with nitrogen, an SiO2 base product is prepared in the form of SiO2 grains or in the form of a porous semi-finished product produced from the SiO2 grains and the SiO2 base product is processed into the quartz glass with the nitrogen chemically bound therein in a hot process in an atmosphere containing a reaction gas containing nitrogen. From this starting point, a method is provided for achieving nitrogen doping in quartz glass with as high a fraction of chemically bound nitrogen as possible. This object is achieved according to the invention in that a nitrogen oxide is used as the nitrogen-containing reaction gas, and that a SiO2 base product is used that in the hot process has a concentration of oxygen deficient defects of at least 2×1015 cm−3, wherein the SiO2 base product comprises SiO2 particles having an average particle size in the range of 200 nm to 300 μm (D50 value).

摘要翻译： 在制造掺杂有氮的石英玻璃的已知方法中，SiO 2基底产物以SiO 2晶粒的形式制备，或以由SiO 2晶粒生成的多孔半成品的形式制备，将SiO 2基产物加工成 在含有含氮反应气体的气氛中，在热过程中氮化学结合的石英玻璃。 从这个起点，提供了一种在石英玻璃中实现氮掺杂的方法，尽可能高的一部分化学键合的氮。 根据本发明的目的是根据本发明实现氮氧化物作为含氮反应气体，并且使用SiO 2基产物，其在热处理中具有至少2×1015cm的缺氧缺陷浓度 -3，其中SiO 2基产物包含平均粒度在200nm至300μm（D50值）范围内的SiO 2颗粒。