Mold materials for formed ceramic

    公开(公告)号:US11207795B1

    公开(公告)日:2021-12-28

    申请号:US16137434

    申请日:2018-09-20

    Applicant: Apple Inc.

    Abstract: A mold apparatus to form a ceramic (or glass) includes a first mold portion having a first coefficient of thermal expansion and a second mold portion having a second coefficient of thermal expansion. In some embodiments, the first mold portion and/or the second mold portion are substantially immiscible with the ceramic material, such as silicon oxide, at a temperature greater than 600° C. In some embodiments, the first coefficient of thermal expansion and the second coefficient of thermal expansion are substantially similar to that of the glass or ceramic material. In some embodiments, the first coefficient of thermal expansion is different from the second coefficient of thermal expansion. In some embodiments, the first mold portion and the second mold portion contain a surface coating and a passivation layer.

    CRYSTALLINE GOLD ALLOYS WITH IMPROVED HARDNESS
    10.
    发明申请
    CRYSTALLINE GOLD ALLOYS WITH IMPROVED HARDNESS 审中-公开
    具有改善硬度的结晶金合金

    公开(公告)号:US20150071814A1

    公开(公告)日:2015-03-12

    申请号:US14482716

    申请日:2014-09-10

    Applicant: Apple Inc.

    CPC classification number: C22C5/02 H05K5/04

    Abstract: The disclosure provides gold alloys. The alloys can have improved strength and hardness. The gold alloys can have various gold colors, including yellow gold and rose gold. The gold alloys can be used as enclosures for electronic devices.

    Abstract translation: 本公开提供了金合金。 合金可以提高强度和硬度。 金合金可以有各种金色,包括黄金和玫瑰金。 金合金可用作电子设备的外壳。

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