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    • 5. 发明申请
    • FORMING GLASS SHEETS WITH IMPROVED SHAPE STABILITY
    • 形成具有改善的形状稳定性的玻璃板
    • WO2008066667A2
    • 2008-06-05
    • PCT/US2007/023392
    • 2007-11-08
    • CORNING INCORPORATEDBURDETTE, Steven, R.HE, LongtingKLINGENSMITH, Lewis, K.WANG, Liming
    • BURDETTE, Steven, R.HE, LongtingKLINGENSMITH, Lewis, K.WANG, Liming
    • C03B7/00C03B17/06C03B19/00
    • C03B17/064C03B17/065Y10T428/24
    • Systems, methods, apparatus and products relate to display glass from curved glass ribbons, to improve shape stability in glass ribbons, to creation of reduced stress glass ribbons, and to creation of improved shape stability and reduced stress of display glass, which may include forming slightly a curved glass ribbon in a fusion draw machine (FDM). One or more embodiments may include an isopipe having a desired curvature; an isopipe having a desired incline; an offset draw device operable to draw the glass ribbon in an inclined ribbon draw direction; one or more air jets or vacuum operable to apply air pressure to a first side of the glass ribbon, thereby creating a pressure differential on the first side; and/or one or more electrostatic force generators operable to apply electrostatic force to a first side of the glass ribbon, thereby generating an electric field differential across the glass ribbon.
    • 系统,方法,设备和产品涉及来自弯曲玻璃带的显示器玻璃,用于改善玻璃带中的形状稳定性,产生应力减小的玻璃带,以及形成改善的形状稳定性和降低的应力 的显示器玻璃,其可以包括在熔合拉丝机(FDM)中形成稍微弯曲的玻璃带。 一个或多个实施例可以包括具有期望曲率的等压槽; 具有所需倾斜度的等压管; 偏移拉拔装置,其可操作以沿倾斜的带拉伸方向拉动所述玻璃带; 一个或多个空气射流或真空,其可操作以将空气压力施加到玻璃带的第一侧,从而在第一侧上产生压力差; 和/或一个或多个静电力发生器,所述静电力发生器可操作以将静电力施加到玻璃带的第一侧,由此在玻璃带两端产生电场差分。
    • 10. 发明申请
    • LASER SCORING OF GLASS AT ELEVATED TEMPERATURES
    • 在高温下激光玻璃的分级
    • WO2010138451A2
    • 2010-12-02
    • PCT/US2010/035954
    • 2010-05-24
    • CORNING INCORPORATEDABRAMOV, Anatoli, AKELLEY, Michael, TWANG, LimingZHOU, Naiyue
    • ABRAMOV, Anatoli, AKELLEY, Michael, TWANG, LimingZHOU, Naiyue
    • B23K26/08B23K26/04B23K26/36C03B33/09C03B33/033H01S3/10
    • C03B33/091C03B33/0215Y02P40/57
    • 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.
    • 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。