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    • 10. 发明申请
    • REINFORCED PLATE GLASS AND METHOD FOR MANUFACTURING THE SAME
    • 增强板玻璃及其制造方法
    • US20110200804A1
    • 2011-08-18
    • US13010017
    • 2011-01-20
    • Masahiro TOMAMOTOTatsuya TakayaHiroshi Takimoto
    • Masahiro TOMAMOTOTatsuya TakayaHiroshi Takimoto
    • B32B17/00C03B23/203
    • C03B23/203B32B17/06Y02P40/57Y10T428/2495
    • Provided is a method, including: performing heat treatment under a state in which a thick core plate glass (2a) having a higher thermal expansion coefficient and a thin surface-layer plate glass (3a) having a lower thermal expansion coefficient are brought into surface-to-surface contact so that a bonding surface (2x) and (3x) of the core plate glass (2a) and the surface-layer plate glass (3a) attain a close contact state, thereby directly bonding the core plate glass and the surface-layer plate glass (2a) and (3a); then, additionally performing heat treatment so that the surface-to-surface contact portion has a temperature equal to or higher than a lower strain point out of strain points of the core plate glass and the surface-layer plate glass; and then, performing cooling so as to attain a temperature lower than the lower strain point, to thereby form a compression stress in a surface layer portion (3) corresponding to the surface-layer plate glass (3a) and form a tensile stress in a core portion (2) corresponding to the core plate glass (2a).
    • 提供一种方法,包括:在具有较高热膨胀系数的厚芯板玻璃(2a)和具有较低热膨胀系数的薄表面层平板玻璃(3a)进入表面的状态下进行热处理 表面接触,使得芯板玻璃(2a)和表面层玻璃(3a)的接合面(2x)和(3x)达到紧密接触状态,由此将芯板玻璃和 表面层玻璃(2a)和(3a); 然后,进一步进行热处理,使得表面接触部分具有等于或高于芯板玻璃和表面层玻璃板的应变点以下的较低应变点的温度; 然后进行冷却以获得比下部应变点低的温度,从而在对应于表面层玻璃(3a)的表面层部分(3)中形成压缩应力,并在 芯部分(2)对应于芯板玻璃(2a)。