Method of sealing two articles together with an indium preform s

Details Method of sealing two articles together with an indium preform s Method of sealing two articles together with an indium preform s

1992-03-27

1993-03-30

Seidel, Richard K.

Metal fusion bonding

Process

Using only pressure

228124, 228205, B23K 2002, B23K 2024

Patent

active

051976536

ABSTRACT:
Two articles are provided with mounting surfaces which are to be joined together. A ring shaped preform is selected which consists substantially of indium. The preform is placed on a plate like support means having a plurality of flow through apertures such that the apertures are located to be in alignment with and under at least portions of the preform to permit the passage of cleaning agents through the apertures and around at least selected portions of the preform. A motion limiting means is coupled to the support means so as to serve to limit motion of the preform, bounded by the support means and the motion limiting means. With the motion limiting means in place, the combination of the motion limiting means and the support means can be handled without any contact with the preform.

REFERENCES:
patent: 4153317 (1979-05-01), Ljung et al.
patent: 4233568 (1980-11-01), Hamerdinger et al.
patent: 4273282 (1981-06-01), Norvell et al.
patent: 4432660 (1984-02-01), Norvell et al.
patent: 4612647 (1986-09-01), Norvell
patent: 4817112 (1989-03-01), Weber et al.
patent: 4930676 (1990-06-01), NcNaught et al.
Toshiba Glass-Sealed He-Ne Laser Tubes; by T. Shimada, T. Kaneko and S. Katagiri; Toshiba Review, #105, Sep.-Oct. 1976, pp. 40-43.

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