Methods of making three dimensional glass ceramic articles

    公开(公告)号:US11554976B2

    公开(公告)日:2023-01-17

    申请号:US16674748

    申请日:2019-11-05

    Abstract: A three dimensional glass ceramic article with a thickness between 0.1 mm and 2 mm, having a dimensional precision control of less than or equal to ±0.1 mm. A method for forming a three dimensional glass ceramic article including placing a nucleated glass article into a mold, and heating the nucleated glass article to a crystallization temperature, where the nucleated glass article is in the mold during the heating. Then, holding the nucleated glass article at the crystallization temperature for a duration sufficient to crystallize the nucleated glass article and form a three dimensional glass ceramic article, where the nucleated glass article is in the mold during the holding, and removing the three dimensional glass ceramic article from the mold.

    Compensated molds for manufacturing ion exchange strengthened, 3D glass covers
    6.
    发明授权
    Compensated molds for manufacturing ion exchange strengthened, 3D glass covers 有权
    用于制造离子交换的补偿模具加强,3D玻璃盖

    公开(公告)号:US09292634B2

    公开(公告)日:2016-03-22

    申请号:US14269406

    申请日:2014-05-05

    Abstract: Methods for compensating for the warp exhibited by three-dimensional glass covers as a result of ion exchange strengthening are provided. The methods use a computer-implemented model to predict/estimate changes to a target three-dimensional shape for the 3D glass cover as a result of ion exchange strengthening. The model includes the effects of ion exchange through the edge of the 3D glass cover. In an embodiment, the inverse of the predicted/estimated changes is used to produce a compensated (corrected) mold which produces as-molded parts which when subjected to ion exchange strengthening have shapes closer to the target shape than they would have had if the mold had not been compensated (corrected).

    Abstract translation: 提供了用于补偿作为离子交换强化的结果的三维玻璃罩所呈现的翘曲的方法。 该方法使用计算机实现的模型来预测/估计由于离子交换强化导致3D玻璃盖的目标三维形状的变化。 该模型包括通过3D玻璃盖边缘进行离子交换的效果。 在一个实施例中,使用预测/估计变化的倒数来产生补偿(校正的)模具,其产生模制部件,当进行离子交换强化时,模具的形状比模具更接近目标形状 没有得到补偿(更正)。

    Setter plates and methods of ceramming glass articles using the same

    公开(公告)号:US12077464B2

    公开(公告)日:2024-09-03

    申请号:US17260349

    申请日:2019-07-03

    CPC classification number: C03B32/02

    Abstract: Glass stack configurations including a carrier plate, setter plates, and glass sheets for thermal treatment of the glass sheets to form glass ceramic articles are provided. The glass stacking configurations and components described herein are selected to improve thermal uniformity throughout a glass stack during ceramming processes while maintaining or even reducing the stresses in the resultant glass ceramic article. Accordingly, the glass ceramic articles made according to the various embodiments described herein exhibit improved optical qualities and less warp than glass ceramic articles made according to conventional processes. Various embodiments of carrier plates, setter plates, parting agent compositions, and methods of stacking glass sheets are described.

    Methods of ceramming glass articles having improved warp

    公开(公告)号:US11613491B2

    公开(公告)日:2023-03-28

    申请号:US16511443

    申请日:2019-07-15

    Abstract: Glass stack configurations including a carrier plate, setter plates, and glass sheets for thermal treatment of the glass sheets to form glass ceramic articles are provided. The glass stacking configurations and components described herein are selected to improve thermal uniformity throughout a glass stack during ceramming processes while maintaining or even reducing the stresses in the resultant glass ceramic article. Accordingly, the glass ceramic articles made according to the various embodiments described herein exhibit improved optical qualities and less warp than glass ceramic articles made according to conventional processes. Various embodiments of carrier plates, setter plates, parting agent compositions, and methods of stacking glass sheets are described.

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