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    • 4. 发明申请
    • PRECISION GLASS ROLL FORMING PROCESS AND APPARATUS
    • 精密玻璃滚筒成型工艺及设备
    • WO2012166761A1
    • 2012-12-06
    • PCT/US2012/039933
    • 2012-05-30
    • CORNING INCORPORATEDLAKOTA, AlexanderLOCK, William EdwardSCHULTES, Joel AndrewTHOMAS, John Christopher
    • LAKOTA, AlexanderLOCK, William EdwardSCHULTES, Joel AndrewTHOMAS, John Christopher
    • C03B13/04C03B17/06
    • C03B13/16C03B13/04C03B17/064Y02P40/57
    • A process and apparatus for precision glass roll forming includes a glass feed device for supplying a supplied stream of molten glass at a glass temperature of 1000° C or higher. A pair of hot forming rolls maintained at a surface temperature of about 500° C or higher or about 600° C or higher located vertically below the glass feed device receives the supplied stream of molten glass and thins the supplied stream of molten glass to form a formed ribbon of glass having a thickness near a desired thickness. A pair of cold sizing rolls maintained at a surface temperature of from about 400° C or lower, about 300° C or lower, or about 200° C or lower are located vertically below the forming rolls receives the formed ribbon of glass and thins the formed ribbon of molten glass to produce a sized ribbon of glass having a desired thickness and a desired thickness uniformity. The thickness of the sized ribbon of glass varies by no more than +/- 0.025 mm. The sized ribbon of glass produced by the sizing rolls has a thickness 1mm or less or 0.8mm or less, or 0.75 mm or less.
    • 用于精密玻璃辊成型的方法和装置包括玻璃供给装置,用于在玻璃温度为1000℃或更高的温度下供应所供应的熔融玻璃流。 保持在垂直于玻璃供给装置的500℃或更高或约600℃或更高的表面温度的一对热成型辊接收供应的熔融玻璃流,并使所供应的熔融玻璃流形成 形成具有接近期望厚度的厚度的玻璃带。 保持在约400℃或更低,约300℃或更低或约200℃或更低的表面温度的一对冷定型辊位于成形辊的垂直下方,接收所形成的玻璃带,并使 形成熔融玻璃带以产生具有所需厚度和所需厚度均匀性的尺寸的玻璃带。 尺寸的玻璃带的厚度变化不超过+/- 0.025mm。 由定型辊生产的大小的玻璃带的厚度为1mm以下或0.8mm以下或0.75mm以下。