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1. 发明授权

US5897927A Seal for vacuum devices and methods for making same 失效
标题翻译：真空装置的密封及其制造方法
公开(公告)号：US5897927A
公开(公告)日：1999-04-27
申请号：US884915
申请日：1997-06-30
申请人： Kuang-Lung Tsai , Chung-Hsing Chao , Wei-Chiang Chen
发明人： Kuang-Lung Tsai , Chung-Hsing Chao , Wei-Chiang Chen
IPC分类号： C03C27/04 , H01J9/40 , E06B3/24
CPC分类号： H01J9/40 , C03C27/042
摘要： A method for permanently sealing an ultra-high vacuum within a glass enclosure. This is accomplished by first forming a hole, either in one of the flat plates that form the enclosure or in one of the standoffs that separate the plates, and then sealing a metal tube to the glass. In one embodiment, the metal tube is positioned so as to be partly inside the hole while in another a flange at the end of the tube is positioned to cover the hole. In both cases, a glass frit paste is then applied all around the glass metal interface. This is followed by heating so that the frit softens and becomes a glass-to-metal seal. Once the structure has cooled down the attached metal tube is used as a pumping port to evacuate it and, while still under vacuum, the metal tube is pinched off to form a permanent seal.
摘要翻译：一种用于永久性地密封玻璃外壳内的超高真空的方法。这是通过首先在形成外壳的平板之一中形成孔或者在分隔板之间的一个支座中形成孔，然后将金属管密封到玻璃上来实现的。在一个实施例中，金属管被定位成部分地位于孔的内部，而在另一个中，管的端部处的凸缘定位成覆盖孔。在这两种情况下，将玻璃料浆料全部涂覆在玻璃金属界面周围。然后加热，使得玻璃料软化并变成玻璃 - 金属密封。一旦结构冷却，附接的金属管就被用作泵送口以将其排空，并且在真空下仍然夹住金属管以形成永久密封。

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