COMPENSATED MOLDS FOR MANUFACTURING GLASS-BASED ARTICLES HAVING NON-UNIFORM THICKNESSES

    公开(公告)号:US20240336520A1

    公开(公告)日:2024-10-10

    申请号:US18747539

    申请日:2024-06-19

    CPC classification number: C03C21/002 C03B23/023

    Abstract: Methods for compensating for warp typically exhibited by glass-based articles having non-uniform thicknesses as a result of ion exchange strengthening are provided. The methods include producing a molding surface of a mold based on a measurement of warp obtained by a specified ion exchange strengthening of a glass-based substrate of non-uniform thickness, such that the molding surface offsets the warp. Glass-based substrates resulting from the mold can then be exposed to the specified ion exchange strengthening and form glass-based articles that are substantially free of warp.

    COMPENSATED MOLDS FOR MANUFACTURING GLASS-BASED ARTICLES HAVING NON-UNIFORM THICKNESSES

    公开(公告)号:US20220135472A1

    公开(公告)日:2022-05-05

    申请号:US17433790

    申请日:2020-02-20

    Abstract: Methods for compensating for warp typically exhibited by glass-based articles having non-uniform thicknesses as a result of ion exchange strengthening are provided. The methods include producing a molding surface of a mold based on a measurement of warp obtained by a specified ion exchange strengthening of a glass-based substrate of non-uniform thickness, such that the molding surface offsets the warp. Glass-based substrates resulting from the mold can then be exposed to the specified ion exchange strengthening and form glass-based articles that are substantially free of warp.

    GLASS COMPOSITIONS FOR USE IN CO-FORMED LAMINATES

    公开(公告)号:US20210179472A1

    公开(公告)日:2021-06-17

    申请号:US17270759

    申请日:2019-08-21

    Abstract: Embodiments of a method for pair bending glass articles is provided herein. In the method, a first glass article and a second glass article are stacked to form a stack. The first glass article includes a first surface, a second surface that opposes the first surface, and a first composition having first annealing and softening temperatures. The second glass article includes a third surface, a fourth surface that opposes the third surface, and a second composition having second annealing and softening temperatures. The annealing temperatures are within 35° C. of each other and are at least 550° C. The softening temperatures are within 35° C. of each other and are at least 750° C. In the method, the stack is placed on a mold, and the stack is heated to a sagging temperature such that a shaped stack is formed.

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