Method of producing a hermetic glass to metal seal without metal

Details Method of producing a hermetic glass to metal seal without metal Method of producing a hermetic glass to metal seal without metal

1988-09-30

1990-04-10

Lindsay, Robert L.

Glass manufacturing

Processes

Operating under inert or reducing conditions

65 5923, 65 5924, 65 5927, 65 5935, 174 5063, 174152GM, C03B 1104, C03C 2702

Patent

active

049157191

ABSTRACT:
A method for forming a hermetic compression glass to metal seal which leaves the metal free of oxide. A temporary assembly of a metal header having a glass bead in an aperture therethrough and an electrical feedthrough conductor passing through the glass bead is heated in a dehydrated pure hydrogen environment to above the melting temperature of the glass bead, and then cooled to solidify the bead and cause the header to contract around the bead.

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patent: 4678358 (1987-07-01), Layher
patent: 4725333 (1988-02-01), Leedecke et al.
patent: 4841101 (1989-06-01), Pollock

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