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    METHOD FOR STRENGTHENING GLASS SHEET, AND DEVICE THEREOF
    1.
    发明公开
    METHOD FOR STRENGTHENING GLASS SHEET, AND DEVICE THEREOF 有权
    VERFAHREN ZURVERSTÄRKUNGEINER GLASSCHEIBE UND VORRICHTUNGDAFÜR

    公开(公告)号：EP2554522A4

    公开(公告)日：2015-07-29

    申请号：EP11762902

    申请日：2011-03-30

    申请人： ASAHI GLASS CO LTD

    发明人： SAITO ISAO ,  HORI JUNJI ,  MIYAZAKI KIYOTA ,  SUWA TOMOHIRO ,  KATO YASUMASA ,  YOSHIDA SATOSHI ,  YODA KAZUSHIGE

    IPC分类号： C03B27/044 ,  C03B23/03 ,  C03B27/012 ,  C03B27/04 ,  C03B29/08 ,  C03B35/18

    CPC分类号： C03B27/012 ,  C03B27/0404 ,  C03B27/0413 ,  C03B27/0417 ,  C03B27/0442 ,  C03B29/08 ,  C03B35/181 ,  C03B35/183

    摘要： To provide a method for tempering a glass sheet, which causes a greater temperature difference between the surfaces and the center portion of the glass sheet. The method for tempering a glass sheet of the present invention comprises a heating step of heating the glass sheet to a temperature close to the softening point of the glass sheet, a quenching step of blowing a cooling medium to both surfaces in the thickness direction of the heated glass to cool it, and a pre-quenching step between the heating step and the quenching step and further has an internal heating substep of selectively heating the vicinity of the center portion in the thickness direction of the glass sheet at least in the quenching step, to create such a state that when the temperature at the center portion in the thickness direction of the glass sheet is close to the tempering point, the temperature at the surfaces in the thickness direction of the glass sheet is not higher than the annealing point.

    摘要翻译： 提供一种用于回火玻璃板的方法，其导致玻璃板的表面和中心部分之间的温差更大。 本发明的玻璃板的回火方法包括将玻璃板加热到接近玻璃板的软化点的加热步骤，在冷却介质的厚度方向的两面吹送冷却介质的淬火工序 加热玻璃使其冷却，以及在加热工序和淬火工序之间的预淬火工序，还具有至少在淬火工序中选择性地加热玻璃板的厚度方向中央部附近的内部加热子步骤 为了形成这样的状态：当玻璃板的厚度方向的中央部的温度接近回火点时，玻璃板的厚度方向的表面的温度不高于退火点。