Method for sealing thermal processing apparatus

Details Method for sealing thermal processing apparatus Method for sealing thermal processing apparatus

1993-04-27

1994-04-26

Bradley, Paula A.

Metal fusion bonding

Process

With shaping

228245, 29515, B23K 3102

Patent

active

053059425

ABSTRACT:
A novel method for sealing the end of tubing connected to and extending from a container housing workpieces to be thermally processed using mechanical as well as thermal means. The invention also contemplates a novel tubing member for connection to such a container, where the sealing material is disposed within the tubing member prior to insertion of the tubing into the container. After fixing the tubing in the container, a plurality of locations along the length of the tubing are identified where mechanical closure of the tubing is effected. Then, the tubing is heated to a temperature sufficiently high to melt the contained sealing material at the crushed locations, such that a metallurgical seal is formed inside the tubing at the crushed locations.

REFERENCES:
patent: 2469975 (1949-05-01), McCloy
patent: 4204378 (1980-05-01), Thompson

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