glass-to-metal seal


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glass-to-metal seal

[¦glas tə ¦med·əl ′sēl]
(electronics)
An airtight seal between glass and metal parts of an electron tube, made by fusing together a special glass and special metal alloy having nearly the same temperature coefficients of expansion.
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Elimination of glass-to-metal seals which are typically the weakest link of an HID lamp
Glass-ceramic-to-metal seals have several advantages over glass-to-metal seals.
There are several distinctly different ways to achieve glass-to-metal seals, each with its own metallurgical issues and performance advantages.
Recent issues have covered glass-to-metal seals, ways to split a glass tube longitudinally, and how to synthesize "buckyballs" (cagelike carbon molecules) that can be used in thin films having various magnetic and semiconducting properties.
Unlike feedthroughs or glass-to-metal seals, the seal position can be removed or adjusted in seconds.
NEC SCHOTT is a manufacturing company of hermetic glass-to-metal seals for the protection of sensitive electronics such as sensors, thermal fuses, battery covers and many more.
For example, top quality laser welding of enclosures and high-end glass-to-metal seals are required to ensure that Li-[SOCl.
Equipped with two hermetically and electrically connected, yet mechanically decoupled glass-to-metal seals, they truly provide the additional pressure barrier to meet the highest safety requirements.
Sealing can be accomplished by using O-rings, epoxy seals and glass-to-metal seals.
HCC designs and manufactures high-precision glass-to-metal seals and ceramic-to-metal seals.