Method for making perforations or depressions in a glass work piece
    1.
    发明授权
    Method for making perforations or depressions in a glass work piece 失效
    在玻璃工件上制作穿孔或凹陷的方法

    公开(公告)号:US4326872A

    公开(公告)日:1982-04-27

    申请号:US164699

    申请日:1980-06-30

    IPC分类号: C03B21/04 C03B23/26

    CPC分类号: C03B21/04 C03B23/26

    摘要: A method for making perforations or forming depressions in a glass work piece is described. Pursuant to the method, a two piece housing for the work piece is provided. The housing when assembled has a cavity conforming in size and shape to the work piece. The lower housing piece has a continuous upper surface and the upper housing piece has a smooth lower surface and openings in the housing piece conforming in size and position to the perforations or depressions desired to be made in the work piece. The work piece is enclosed in the housing and then plugs are inserted in the openings in the upper housing piece. The plugs snugly fit the openings and extend above the upper surface of the upper housing piece. A weight is then disposed on the upper surface of the plugs. The weight may be a flat metal sheet and is of sufficient weight to cause the plugs to exert a pressure of at least about one half pound per square inch on the work piece. The resulting assembly is then subjected to a temperature intermediate the softening point and the working point of the work piece and the temperature is maintained until descent of the plugs into the work piece ceases. The assembly is then cooled to ambient temperature, the work piece is removed from the housing and then the plugs are removed from the work piece.

    摘要翻译: 描述了在玻璃工件中进行穿孔或形成凹陷的方法。 根据该方法,提供了用于工件的两件式外壳。 组装时的壳体具有与工件尺寸和形状相符的空腔。 下壳体件具有连续的上表面,并且上壳体件具有平滑的下表面,并且壳体件中的开口在尺寸和位置上符合期望制成在工件中的穿孔或凹陷。 工件被封装在壳体中,然后将插头插入上壳体件的开口中。 插头紧密地装配开口并且在上壳体的上表面上方延伸。 然后将重物设置在塞子的上表面上。 重量可以是平的金属片材,并且具有足够的重量,以使塞子在工件上施加至少约一磅半平方英寸的压力。 然后将所得的组件经受在工件的软化点和工作点之间的温度,并保持温度,直到插头进入工件的下降停止。 然后将组件冷却至环境温度,将工件从壳体中取出,然后将塞子从工件中取出。

    Low temperature sealing glasses
    3.
    发明授权
    Low temperature sealing glasses 失效
    低温密封眼镜

    公开(公告)号:US4251595A

    公开(公告)日:1981-02-17

    申请号:US74012

    申请日:1979-09-10

    CPC分类号: C03C8/245 C03C3/0745

    摘要: Lead borate and lead zinc borate glasses containing from 0.1 to 10% by weight cuprous oxide (Cu.sub.2 O) and fluoride, the molar ratio of cuprous oxide to fluoride being in the range 1:0.25 to 1:10, preferably in the range 1:1 to 1:5, up to 5% by weight bismuth oxide and from 0.1 to 5.0% alumina are disclosed. These glasses are mixed with particulate lead titanate in amounts up to about 56% by volume. These mixtures have very low coefficients of thermal expansion and are useful for bonding ceramic, glass and metal parts together at low temperatures. They are especially useful as semiconductor package sealants.

    摘要翻译: 含有0.1至10重量%的氧化亚铜(Cu 2 O)和氟化物的硼酸铅和硼酸铅锌玻璃,氧化亚铜与氟化物的摩尔比在1:0.25至1:10的范围内,优选在1:1范围内 至1:5,高达5重量%的氧化铋和0.1至5.0%的氧化铝。 将这些玻璃与高达约56体积%的量的颗粒状钛酸铅混合。 这些混合物具有非常低的热膨胀系数,并且可用于在低温下将陶瓷,玻璃和金属部件结合在一起。 它们特别适用于半导体封装密封剂。