METHOD AND APPARATUS OF MANUFACTURING GLASS PRODUCTS

    公开(公告)号:US20210363048A1

    公开(公告)日:2021-11-25

    申请号:US16956714

    申请日:2018-12-21

    Abstract: Provided is a method of manufacturing a glass product including the following steps. An intermediate glass product is provided. A portion of the intermediate glass product is heated to a predetermined temperature. A tool and the heated portion of the intermediate glass product are brought into contact. Under a state that a tool contacts the heated portion, at least one of the tool and the intermediate glass product is rotated so that the tool and the intermediate glass product relatively rotate, wherein a part of the tool that contacts the heated portion comprises or is made of glassy carbon.

    HOLLOW GLASS BODY AND USE OF A HOLLOW GLASS BODY

    公开(公告)号:US20210186810A1

    公开(公告)日:2021-06-24

    申请号:US17271376

    申请日:2019-08-29

    Abstract: A hollow glass body comprises a cylindrical main body portion having a first inside diameter, and a first end opening and a second end opening on opposite ends of the hollow glass body. The hollow glass body has a second inside diameter at the second end opening. The second inside diameter is smaller than the first inside diameter. A difference between the first inside diameter and the second inside diameter is at most 100 μm.

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