Plastic and nonmetallic article shaping or treating: processes – Including step of generating heat by friction
Patent
1983-02-04
1984-11-20
Parrish, John A.
Plastic and nonmetallic article shaping or treating: processes
Including step of generating heat by friction
264 61, 264 62, 264 65, C04B 3900
Patent
active
044838107
ABSTRACT:
Method for the direct joining of metal pieces which have a surface metal oxide layer, to oxide ceramic substrates by heating the ceramic substrates covered with the metal pieces in an oxygen-containing atmosphere to a temperature above the eutectic temperature of the metal and the metal oxide, but below the melting temperature of the metal. The heating is carried out in a continuous heating furnace in a nitrogen atmosphere with an addition of oxygen of 20 to 50 vpm. The cooling-down in the continuous heating furnace takes place after the solidification of the eutectic melt, in a nitrogen atmosphere which has an oxygen content well below the 20 vpm.
REFERENCES:
patent: 4340436 (1982-07-01), Dubetsky
Bunk Klaus
Keser Helmut
Neidig Arno
Wahl Georg
Brown, Boveri and Cie AG
Greenberg Laurence A.
Lerner Herbert L
Parrish John A.
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