Process for obtaining insulating ceramic inserts by multilayer s

Details Process for obtaining insulating ceramic inserts by multilayer s Process for obtaining insulating ceramic inserts by multilayer s

1993-03-23

1994-09-13

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428901, 428210, 264 58, 264 61, 264 67, B32B 0900

Patent

active

053467493

ABSTRACT:
A process for manufacturing insulating ceramic inserts used as sealed passages for electrical conductors through a metallic wall, is described wherein a green ceramic plate is subjected to silk-screen printing with the aid of a conducting ink, generally in ring-shaped patterns. The patterns are pressed and holes are pierced through the center of the ring and through at least one other green plate. The silk-screen printed plate is pressed against the at least one other green plate, or between two other green plates, bringing the holes into coincidence. A cut-out is made around each of the holes and the outer lateral surface of the part obtained is metallized. The part is then heat treated in order to fire and sinter same. It also is possible for the sintering to be performed before the metallization of the outer lateral surface.

REFERENCES:
patent: 4661181 (1987-04-01), Camps et al.
patent: 4710250 (1987-12-01), Kojima et al.
patent: 4766671 (1988-08-01), Utsumi et al.
patent: 4775503 (1988-10-01), Dubuisson
patent: 4830704 (1989-05-01), Voss et al.
patent: 5071509 (1991-12-01), Kano et al.

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