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1. 发明申请

WO2010138451A3 LASER SCORING OF GLASS AT ELEVATED TEMPERATURES 审中-公开
标题翻译：在高温下激光玻璃的分级
公开(公告)号：WO2010138451A3
公开(公告)日：2011-03-10
申请号：PCT/US2010035954
申请日：2010-05-24
申请人： CORNING INC , ABRAMOV ANATOLI A , KELLEY MICHAEL T , WANG LIMING , ZHOU NAIYUE
发明人： ABRAMOV ANATOLI A , KELLEY MICHAEL T , WANG LIMING , ZHOU NAIYUE
IPC分类号： B23K26/08 , B23K26/04 , B23K26/36 , C03B33/033 , C03B33/09 , H01S3/10
CPC分类号： C03B33/091 , C03B33/0215 , Y02P40/57
摘要： Laser scoring of individual glass sheets (45, 112) and glass ribbons (27) at elevated temperatures is disclosed. A uniform vent can be created along an intended score line (31, 115) by heating a glass surface (114) with a laser beam (113) up to a temperature in a range whose lower limit (11) is defined by the stress required to maintain propagation of an initial flaw (111) to form the vent and whose upper limit (13) is equal to or less than the strain point of the glass. In certain embodiments, the glass temperature under the laser beam (113) stays within these limits regardless of the background temperature of the glass through the use of flexible laser power control provided by a controller (35) which causes a laser (37) to produce a laser power profile along the score line (31, 115) which varies inversely with the glass temperature gradient. The glass temperature gradient can, for example, be detected in real time using a detector (33), e.g., an infrared camera. By controlling the laser beam power in this way, process margins can be significantly increased during the scoring of individual glass sheets (45, 112) and glass ribbons (27) that exhibit significant glass temperature variations.
摘要翻译：公开了单个玻璃板（45,112）和玻璃带（27）在高温下的激光刻痕。可以通过用激光束（113）加热玻璃表面（114）直到其下限（11）由所需应力限定的范围内的温度，沿着预期刻痕线（31,115）产生均匀的排气口以保持初始缺陷（111）的传播以形成通气口，并且其上限（13）等于或小于玻璃的应变点。在某些实施例中，激光束（113）下的玻璃温度通过使用由激光器（37）产生的控制器（35）提供的柔性激光功率控制而与玻璃的背景温度无关地保持在这些限制内沿着与玻璃温度梯度成反比变化的刻痕线（31,115）的激光功率分布。玻璃温度梯度可以例如使用例如红外摄像机的检测器（33）实时检测。通过以这种方式控制激光束功率，在显示显着的玻璃温度变化的单个玻璃板（45,112）和玻璃带（27）的刻痕过程中，可以显着增加工艺边缘。

2. 发明专利

JP2007161573A Method and apparatus for making fused silica 有权
标题翻译：制备二氧化硅的方法和装置
公开(公告)号：JP2007161573A
公开(公告)日：2007-06-28
申请号：JP2006329318
申请日：2006-12-06
申请人： Corning Inc , コーニングインコーポレイテッド
发明人： DANIEL W HOOTOFU , KELLEY MICHAEL T , ROSETTIE JOHN S , SCHERMERHORN ANDREW P , SHAH KASHYAP H , STONE JOHN III , TANDON PUSHKAR
IPC分类号： C03B8/04 , C03B20/00 , C03C3/06
CPC分类号： C03B19/1423 , C03B19/1453 , C03B19/1476 , C03B2207/66 , C03C3/06 , C03C2201/23 , C03C2201/42
摘要： PROBLEM TO BE SOLVED: To make doped or undoped pure silica glass material. SOLUTION: (I) At least one stream of glass soot particles comprising silica is provided by a burner 315. (II) At least one stream of the glass soot particles is directed to an essentially planar deposition supporting surface of a deposition substrate 301 rotating about a rotation axis, such that at least one layer of glass soot is deposited on the deposition supporting surface to form a soot preform 303. In the step (II), the burner 315 is allowed to move relative to the deposition supporting surface, and the velocity of the burner 315 relative to the deposition supporting surface is modulated such that in at least half of the area of the layer of glass soot deposited, local soot density variation through at least the center half thickness is low. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：制备掺杂或未掺杂的纯二氧化硅玻璃材料。（I）由燃烧器315提供包含二氧化硅的至少一个玻璃烟灰颗粒流。（II）玻璃烟灰颗粒的至少一个流被引导到沉积衬底的基本上平面的沉积支撑表面 301，使得至少一层玻璃烟灰沉积在沉积支撑表面上以形成烟灰预制件303.在步骤（II）中，允许燃烧器315相对于沉积支撑表面移动并且调节燃烧器315相对于沉积支撑表面的速度，使得在玻璃烟炱层的至少一半区域沉积时，至少中心半部厚度的局部烟灰浓度变化较低。版权所有（C）2007，JPO＆INPIT

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