Metal working – Method of mechanical manufacture – Electrical device making
Patent
1984-05-17
1986-08-05
Goldberg, Howard N.
Metal working
Method of mechanical manufacture
Electrical device making
29DIG48, 228122, 2281801, 228188, 228194, 228903, 310 44, 310 45, 310233, H01R 4306, H01R 3904, H02K 126
Patent
active
046034749
ABSTRACT:
A collector for electric machines, including a rotationally symmetrical sintered ceramic body and a plurality of radially disposed metallic segments which are separated from each other by one interspace each and which are bonded to the ceramic body via a eutectic intermediate layer. The segments are bonded to the ceramic body in accordance with the eutectic method by being surface-oxidized on their inside narrow side and radially pressed against the ceramic body with the totality being brought to the melting temperature corresponding to the metal/metal-oxide eutectic and subsequently being cooled down again. A preferred embodiment includes: copper segments on an Al.sub.2 O.sub.3 ceramic body.
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Gobrecht Jens
Schuler Claus
BBC Brown Boveri & Company Limited
Goldberg Howard N.
Wallace R. S.
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