公开(公告)号：US4842627A

公开(公告)日：1989-06-27

申请号：US210192

申请日：1988-06-20

申请人： Hartmut Schneider ,  Achim Schoberth

发明人： Hartmut Schneider ,  Achim Schoberth

IPC分类号： G02B6/00 ,  C03B20/00 ,  C03B37/012 ,  C03C13/04 ,  C03C15/02

CPC分类号： C03B37/01277 ,  C03B37/01265 ,  C03B37/01268 ,  C03C13/042 ,  C03C15/02 ,  C03B2201/82 ,  Y10S65/16

摘要： A method for the manufacture of a preform of barium containing heavy metal fluoride glass comprising a core and a jacket for drawing infrared light waveguides for optical communications technology by casting molten glass onto a predetermined body of solid glass. Hitherto, such a method was executed such that molten core glass was cast into a tube of jacket glass. In order to achieve thicker preforms, one proceeds such here that a solid row of the core glass is surrounded with molten jacket glass. The boundary surface between core and jacket of the generated preform can be improved in the method disclosed herein that the surface of the solid rod is etched before being surrounded with the jacket glass. A nearly perfect boundary surface is obtained by etching with a ZrOCl.sub.2 solution.

摘要翻译： 一种制造包含重金属氟化物玻璃的钡预成型体的方法，其包括用于通过将熔融玻璃浇铸到预定固体玻璃体上的用于光通信技术的红外光波导的芯和外壳。 到目前为止，这样一种方法被执行，使得熔融的芯玻璃被浇铸到夹套玻璃管中。 为了实现较厚的预成型件，可以进行这样的处理，使得芯玻璃的实心线被熔融夹套玻璃包围。 在本文公开的方法中，可以改善所产生的预成型件的芯和护套之间的边界表面，在被夹套玻璃包围之前，将实心棒的表面进行蚀刻。 通过用ZrOCl 2溶液蚀刻获得几乎完美的边界表面。

公开(公告)号：US4895813A

公开(公告)日：1990-01-23

申请号：US103229

申请日：1987-09-30

申请人： Jerry R. Bautista ,  Matthijs M. Broer ,  Allan J. Bruce ,  James W. Fleming ,  Kenneth L. Walker

发明人： Jerry R. Bautista ,  Matthijs M. Broer ,  Allan J. Bruce ,  James W. Fleming ,  Kenneth L. Walker

IPC分类号： C03B37/014 ,  C03B37/012 ,  C03C3/32 ,  G02B6/00

CPC分类号： C03C3/325 ,  C03B37/01265 ,  C03B37/01277 ,  C03B2201/82 ,  Y10S65/16

摘要： A new method for fabricating devices which include multicomponent metal halide glasses, e.g., multicomponent metal halide glass optical fibers, is disclosed. In accordance with the inventive method, a multicomponent metal halide glass body, essentially free of crystallites, is produced by cooling essentially every portion of a melt incorporated into the glass body at a quench rate which is necessarily greater than or equal to about 10 Kelvins per second (K/sec). This necessary quench rate is achieved by successively quenching relatively small portions of the melt, e.g., thin layers or droplets of melt material, having relatively small cross-sectional dimensions.

公开(公告)号：US4661413A

公开(公告)日：1987-04-28

申请号：US705397

申请日：1985-02-25

申请人： Gwenael Maze ,  Jean-Yves Carree ,  Marcel Poulain

发明人： Gwenael Maze ,  Jean-Yves Carree ,  Marcel Poulain

IPC分类号： B32B15/04 ,  B32B17/06 ,  C03B19/01 ,  C03B19/02 ,  C03B19/04 ,  C03B19/14 ,  C03B37/012 ,  C03B37/018 ,  C03C3/32 ,  C03C8/00 ,  C03C8/06 ,  C03C17/02 ,  C04B41/50 ,  C04B41/86 ,  C23C24/10 ,  C23C26/00 ,  C23C30/00 ,  C23D5/02 ,  C23D5/04 ,  C03C3/112

CPC分类号： C04B41/009 ,  C03B19/01 ,  C03B19/02 ,  C03B19/04 ,  C03B19/14 ,  C03B37/01265 ,  C03B37/01268 ,  C03B37/01271 ,  C03B37/01277 ,  C03B37/01291 ,  C03B37/01294 ,  C03B37/018 ,  C03B37/01807 ,  C03C17/02 ,  C03C3/325 ,  C04B41/5022 ,  C04B41/86 ,  C23D5/04 ,  C03B2201/82 ,  Y10S501/904

摘要： The invention gives a coating with a very high vitrification rate. The resulting surface has physicochemical characteristics which are similar to those of fluoride glass. In order to achieve this result, the material constituting the fluoride glass enamel quickly crosses the temperature range between the melting point and the glossy transition temperature. Moreover, the metallic substrate temperature must be high enough to enable an active physiochemical process at the glass-metal interface which results in a correct "hooking". A "hooking" temperature is higher than one where a physical adhesion occurs, which results from Van der Waals interactions without any formation of chemical bonds at the glass-metal interface. The particular chemical reactivity of molten fluorides, which otherwise results in critical problems of corrosion, is in this case a favorable factor which generally reduces the hooking temperature to a level which is far below the glass melting temperature.

摘要翻译： 本发明提供了具有非常高的玻璃化速率的涂层。 所得表面具有与氟化物玻璃相似的物理化学特性。 为了达到这个结果，构成氟化釉的材料迅速地越过了熔点和光泽转变温度之间的温度范围。 此外，金属基板的温度必须足够高以使玻璃 - 金属界面处的活性物理化学过程产生正确的“钩住”。 “挂钩”温度高于发生物理粘附的温度，这是由范德华相互作用产生的，而玻璃 - 金属界面上没有形成化学键。 在这种情况下，熔融氟化物的特定化学反应性，否则会导致严重的腐蚀问题，这是一个有利的因素，通常将挂钩温度降低到远低于玻璃熔融温度的水平。

公开(公告)号：US3899313A

公开(公告)日：1975-08-12

申请号：US37401773

申请日：1973-06-27

申请人： SIEMENS AG

发明人： GRABMAIER JOSEF ,  PLAETTNER ROLF

IPC分类号： C03B37/014 ,  C03B37/012 ,  C03B37/018 ,  G02B6/00 ,  C03C25/02

CPC分类号： C03B37/01265 ,  C03B37/01277 ,  C03B37/018 ,  C03B2201/02 ,  C03B2201/42

摘要： A glass fiber having a central core formed of material having a relatively high index of refraction and an outer casing formed of material having a relatively low index of refraction is formed with perfect contact between the core and casing by forming a coating of casing material on the core and permitting the coating to harden. The coating may be applied by immersing the core material in a bath of casing material, by drawing the core material vertically through a bath of the casing material, or by drawing the core material in a horizontal direction under a vertical column of casing material while twisting said core material.