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    • 4. 发明申请
    • FLOAT PROCESS FOR A GLASS-CERAMIC
    • 玻璃陶瓷的浮法工艺
    • US20090314034A1
    • 2009-12-24
    • US12513670
    • 2007-11-05
    • Catherine GoulasRémi JacquesGilles Querel
    • Catherine GoulasRémi JacquesGilles Querel
    • C03B18/12B32B17/00
    • C03B18/02C03C3/083C03C10/0027Y10T428/26Y10T428/265
    • The invention relates to a process for manufacturing a flat ribbon of precursor glass for a glass-ceramic, comprising the continuous floating of the molten glass on a bath of molten metal in a float chamber, said glass being poured in the molten state at a temperature above its devitrification onset temperature onto the molten metal upstream of the chamber, said glass progressively forming a ribbon that runs along said metal bath, the cooling rate of the glass being at least 18° C./min between, on the one hand, the moment when the glass is at the theoretical temperature for which the devitrification rate is a maximum and, on the other hand, the later moment when the glass is at the theoretical temperature at which the devitrification crystal growth rate becomes less than 1 micron per minute. The glass thus floated does not undergo any devitrification.
    • 本发明涉及一种用于制造用于玻璃 - 陶瓷的前体玻璃扁平带的方法,包括将熔融玻璃连续漂浮在浮法室中的熔融金属浴上,所述玻璃在熔融状态下以温度 在其脱玻璃开始温度高于室上游的熔融金属之上,所述玻璃逐渐形成沿所述金属浴延伸的色带,玻璃的冷却速率至少为18℃/分钟,一方面, 玻璃处于失透率最高的理论温度的时刻,另一方面,当玻璃处于失真晶体生长速率变得小于1微米/分钟的理论温度时的时刻。 因此漂浮的玻璃不会发生任何失透。