公开(公告)号：EP4001229A2

公开(公告)日：2022-05-25

申请号：EP21206516.3

申请日：2021-11-04

申请人： Corning Incorporated

发明人： Bressler, Douglas Dale ,  Deneka, David Alan ,  Gerrish, Michael Charles ,  Jennings, Douglas Hull ,  Kunitake, Miki Eugene ,  Lock, William Edward ,  Mudiraj, Shyam Prasad ,  Partridge, Neil Eugene ,  Payne, Jeremy Nathan ,  Proulx II, Eugene Roland ,  Sutton, Ryan Christopher ,  Tarcza, Steven Howard

IPC分类号： C03B17/06 ,  C03B25/12 ,  C03C1/00 ,  C03B13/04 ,  C03B13/16

摘要： A method of forming a glass sheet comprises: (a) forming a ribbon of glass from molten glass with a pair of forming rollers; (b) reducing horizontal temperature variability of the ribbon of glass to be 10 °C or less across 80 percent of an entire width of the ribbon of glass before the ribbon of glass cools to a glass transition temperature; (c) controlling a cooling rate of the ribbon of glass while the ribbon of glass moves vertically downward within a setting zone such that the ribbon of glass has a first average cooling rate before the ribbon of glass cools to the glass transition temperature and a second average cooling rate after the ribbon of glass cools to the glass transition temperature, the first average cooling rate being less than the second average cooling rate; and (d) separating a glass sheet from the ribbon of glass.

公开(公告)号：EP4001229A3

公开(公告)日：2022-08-10

申请号：EP21206516.3

申请日：2021-11-04

申请人： Corning Incorporated

发明人： Bressler, Douglas Dale ,  Deneka, David Alan ,  Gerrish, Michael Charles ,  Jennings, Douglas Hull ,  Kunitake, Miki Eugene ,  Lock, William Edward ,  Mudiraj, Shyam Prasad ,  Partridge, Neil Eugene ,  Payne, Jeremy Nathan ,  Proulx II, Eugene Roland ,  Sutton, Ryan Christopher ,  Tarcza, Steven Howard

IPC分类号： C03B17/06 ,  C03B25/12 ,  C03C1/00 ,  C03B13/04 ,  C03B13/16

摘要： A method of forming a glass sheet comprises: (a) forming a ribbon of glass from molten glass with a pair of forming rollers; (b) reducing horizontal temperature variability of the ribbon of glass to be 10 °C or less across 80 percent of an entire width of the ribbon of glass before the ribbon of glass cools to a glass transition temperature; (c) controlling a cooling rate of the ribbon of glass while the ribbon of glass moves vertically downward within a setting zone such that the ribbon of glass has a first average cooling rate before the ribbon of glass cools to the glass transition temperature and a second average cooling rate after the ribbon of glass cools to the glass transition temperature, the first average cooling rate being less than the second average cooling rate; and (d) separating a glass sheet from the ribbon of glass.