Glass-to-Metal Seals

The glass-to-metal seal and the bellows are important parts of the receiver which are at the risk of failure. The glass-to-metal seal connects the brittle glass material to a metal with typically rather different thermal expansion coefficients. Hence, temperature differences lead to thermal stresses in this component. The bellow, on the other hand, is compressed and expanded approximately

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US4888037A - Glass to metal sealing process - … Glass to metal sealing process Download PDF Info Publication number US4888037A. US4888037A US07/229,588 US22958888A US4888037A US 4888037 A US4888037 A US 4888037A US 22958888 A US22958888 A US 22958888A US 4888037 A US4888037 A US 4888037A Authority US United States Prior art keywords glass process metal volume percent inert gas Prior art date 1987-10-05 Legal …

glass to metal seal : définition de glass to metal … Glass-to-metal seals are a very important element of the construction of vacuum tubes, electric discharge tubes, incandescent light bulbs, glass encapsulated semiconductor diodes, reed switches, pressure tight glass windows in metal cases, and metal or ceramic packages of electronic components.

In order to undertake a study of the factors involved in the manufacture of a glass-to-metal seal it is necessary to define carefully the specific type of product to be considered. In general such a seal constitutes an electrical insulation between two or more metallic elements while at the same time forming part of an enclosure or shield, hermetically shielding some electronic component from