Method and apparatus for performing in-situ vacuum-assisted metal to glass sealing
Abstract
A method and apparatus for assembling and fusing glass to metal in a glass-metal electrical component is disclosed. The component includes a metallic shell formed with upper and lower cylindrical recesses connected together by longitudinal passages, a pair of metal rings and plural metal pins assembled to define electrical feed-throughs. The component parts are assembled on a fixture having a sleeve-like projection and a central mounting projection establishing concentric nesting surfaces to which the metal rings are slip-fitted in concentric alignment with each other spaced from sidewalls of the lower recess. The pins are in electrical contact with the metal rings. A glass pre-form is seated within the upper recess. The assembled structure is heated to a temperature sufficient to melt the glass pre-form which flows under gravity through the passages into the lower recess to provide an insulative seal between the metal parts. The gravity flow of glass is assisted by applying vacuum to the lower recess, ensuring that all spaces between the metal parts are filled with sealing glass without formation of bubbles.
- Inventors:
- Issue Date:
- Research Org.:
- Monsanto Research Corp., Miamisburg, OH (USA)
- OSTI Identifier:
- 5531157
- Application Number:
- ON: DE86013687
- Assignee:
- Dept. of Energy
- DOE Contract Number:
- AC04-76DP00053
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; METALLIC GLASSES; FABRICATION; VACUUM WELDING; JOINING; WELDING; 420700* - Engineering- Vacuum Engineering- (-1987)
Citation Formats
Kramer, D P, and Massey, R T. Method and apparatus for performing in-situ vacuum-assisted metal to glass sealing. United States: N. p., 1985.
Web.
Kramer, D P, & Massey, R T. Method and apparatus for performing in-situ vacuum-assisted metal to glass sealing. United States.
Kramer, D P, and Massey, R T. Thu .
"Method and apparatus for performing in-situ vacuum-assisted metal to glass sealing". United States.
@article{osti_5531157,
title = {Method and apparatus for performing in-situ vacuum-assisted metal to glass sealing},
author = {Kramer, D P and Massey, R T},
abstractNote = {A method and apparatus for assembling and fusing glass to metal in a glass-metal electrical component is disclosed. The component includes a metallic shell formed with upper and lower cylindrical recesses connected together by longitudinal passages, a pair of metal rings and plural metal pins assembled to define electrical feed-throughs. The component parts are assembled on a fixture having a sleeve-like projection and a central mounting projection establishing concentric nesting surfaces to which the metal rings are slip-fitted in concentric alignment with each other spaced from sidewalls of the lower recess. The pins are in electrical contact with the metal rings. A glass pre-form is seated within the upper recess. The assembled structure is heated to a temperature sufficient to melt the glass pre-form which flows under gravity through the passages into the lower recess to provide an insulative seal between the metal parts. The gravity flow of glass is assisted by applying vacuum to the lower recess, ensuring that all spaces between the metal parts are filled with sealing glass without formation of bubbles.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jul 18 00:00:00 EDT 1985},
month = {Thu Jul 18 00:00:00 EDT 1985}
}