公开(公告)号：US20070220920A1

公开(公告)日：2007-09-27

申请号：US11389615

申请日：2006-03-24

申请人： Roger Allaire ,  Darren Courtright ,  Clive Gierbolini ,  Dean Neubauer ,  Casey Volino

发明人： Roger Allaire ,  Darren Courtright ,  Clive Gierbolini ,  Dean Neubauer ,  Casey Volino

IPC分类号： C03B11/08 ,  C03B13/00

CPC分类号： C03B17/064 ,  C03B15/02 ,  C03B17/067 ,  C03B17/068 ,  C03B18/02 ,  C03B25/12 ,  C03B33/0215 ,  Y10T428/21

摘要： A method of minimizing distortion in a glass sheet manufacturing process wherein the stress in a parent sheet of glass is measured along each edge of the sheet. The stress data is then used to develop a distortion predictor for predicting the in-plane distortion which sub-sheets of the parent sheet are likely to exhibit when the parent sheet is cut into pre-determined sizes. The in-plane distortion may be predicted based on criteria established by the glass manufacturer, or supplied by an original equipment manufacturer (OEM).

摘要翻译： 一种使玻璃板制造工艺中的变形最小化的方法，其中沿着片材的每个边缘测量母版玻璃板中的应力。 然后应力数据用于开发一个失真预测器，用于预测当母体片材切割成预定尺寸时，母体片材的子表可能显示的面内畸变。 可以根据玻璃制造商制定的标准或由原始设备制造商（OEM）提供的标准来预测平面内失真。

公开(公告)号：US20060094585A1

公开(公告)日：2006-05-04

申请号：US11294315

申请日：2005-12-05

申请人： John Helfinstine ,  Daniel Liebner ,  John Martin ,  Dean Neubauer ,  William Powell

发明人： John Helfinstine ,  Daniel Liebner ,  John Martin ,  Dean Neubauer ,  William Powell

IPC分类号： C04B35/48

CPC分类号： C04B35/481 ,  C03B17/064 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/3409 ,  C04B2235/96

摘要： Isopipes for use in making sheet glass by a fusion process are provided which exhibit reduced sag. The isopipes are composed of a zircon refractory which has a mean creep rate (MCR) at 1180° C. and 250 psi and a 95 percent confidence band (CB) for said mean creep rate such that the CB to MCR ratio is less than 0.5, the MCR and the CB both being determined using a power law model. The zircon refractory can contain titania (TiO2) at a concentration greater than 0.2 wt. % and less than 0.4 wt. %. A concentration of titania in this range causes the zircon refractory to exhibit a lower mean creep rate than zircon refractories previously used to make isopipes. In addition, the variation in mean creep rate is also reduced which reduces the chances that the zircon refractory of a particular isopipe will have an abnormally high creep rate and thus exhibit unacceptable sag prematurely.

摘要翻译： 提供用于通过熔融方法制造玻璃板的等压管，其具有减小的下垂。 等压管由锆石耐火材料组成，其在1180℃和250psi下具有平均蠕变速率（MCR），对于所述平均蠕变速率为95％置信带（CB），使得CB与MCR的比率小于0.5 ，MCR和CB都是使用幂律模型来确定的。 锆石耐火材料可以含有浓度大于0.2wt。的二氧化钛（TiO 2）。 ％且小于0.4wt。 ％。 在这个范围内，二氧化钛的浓度使得锆石耐火材料的平均蠕变速率低于先前用于制造等压管的锆石耐火材料。 此外，平均蠕变速率的变化也降低，这降低了特定等压槽的锆石耐火材料将具有异常高的蠕变速率并因此过早地显示不可接受的凹陷的机会。

公开(公告)号：US20070142207A1

公开(公告)日：2007-06-21

申请号：US11705314

申请日：2007-02-12

申请人： John Helfinstine ,  Daniel Liebner ,  John Martin ,  Dean Neubauer ,  William Powell

发明人： John Helfinstine ,  Daniel Liebner ,  John Martin ,  Dean Neubauer ,  William Powell

IPC分类号： C04B35/48 ,  C04B35/49

CPC分类号： C04B35/481 ,  C03B17/064 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/3409 ,  C04B2235/96

摘要： Isopipes for use in making sheet glass by a fusion process are provided which exhibit reduced sag. The isopipes are composed of a zircon refractory which has a mean creep rate (MCR) at 1180° C. and 250 psi and a 95 percent confidence band (CB) for said mean creep rate such that the CB to MCR ratio is less than 0.5, the MCR and the CB both being determined using a power law model. The zircon refractory can contain titania (TiO2) at a concentration greater than 0.2 wt. % and less than 0.4 wt. %. A concentration of titania in this range causes the zircon refractory to exhibit a lower mean creep rate than zircon refractories previously used to make isopipes. In addition, the variation in mean creep rate is also reduced which reduces the chances that the zircon refractory of a particular isopipe will have an abnormally high creep rate and thus exhibit unacceptable sag prematurely.