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    • 4. 发明公开
    • Method of and apparatus for bending and tempering sheet glass
    • Verfahren und Vorrichtung zum Biegen undHärtenvon Flachglas。
    • EP0431895A2
    • 1991-06-12
    • EP90313157.1
    • 1990-12-04
    • NIPPON SHEET GLASS CO. LTD.
    • Yoshizawa, Hideo c/o Nippon Sheet Glass Co.,Ltd.Kasugai, Toru c/o Nippon Sheet Glass Co., Ltd.
    • C03B23/03C03B23/031C03B27/048C03B27/004C03B27/052C03B27/044
    • C03B23/0305C03B23/0302C03B23/031C03B27/004C03B27/0404C03B27/0445C03B27/052C03B40/005Y02P40/57
    • A glass sheet such as an automobile window glass sheet is bent to shape and tempered at one stage by a sheet glass bending and tempering apparatus. The sheet glass bending and tempering apparatus has solid contact members for pressing a glass sheet, which has been heated nearly to its softening point, to a desired shape and depriving the glass sheet of heat to cool the glass sheet quickly, the solid contact means having a contact surface for contacting the glass sheet and depriving the glass heat of heat therethrough. The contact surface has a plurality of grooves defined therein, and a plurality of air outlet ports defined in each of the grooves, for applying cooling air to the glass sheet, and a plurality of air inlet ports defined in each of the grooves, for drawing the air applied to the glass sheet. When the opposite surfaces of the glass sheet are pressed by the solid contact members, the pressure is temporarily reduced and then increased again to cool the glass sheet. The peripheral edge of the glass sheet, which requires a high degree of shaping accuracy, is cooled quickly by the solid contact members, and the central region of the glass sheet, which requires high optical properties, is cooled quickly by air jets.
    • 汽车玻璃板等玻璃板通过玻璃板弯曲回火装置在一个阶段弯曲成形和回火。 平板玻璃弯曲回火装置具有将已经被加热到其软化点的玻璃板压制成所需形状的固体接触构件,并剥夺玻璃板快速冷却玻璃板,固体接触装置具有 用于接触玻璃板并剥离玻璃热量的接触表面。 接触表面具有限定在其中的多个凹槽,并且限定在每个凹槽中的用于向玻璃板施加冷却空气的多个空气出口端口和限定在每个凹槽中的多个空气入口端口用于拉拔 施加到玻璃板上的空气。 当玻璃板的相对表面被固体接触构件按压时,暂时降低压力,然后再次增加以冷却玻璃板。 需要高度成形精度的玻璃板的周边边缘被固体接触部件快速冷却,需要高光学性能的玻璃板的中心区域被空气快速冷却。