Methods for cryogenic removal of epoxy/wire field windings and f

Details Methods for cryogenic removal of epoxy/wire field windings and f Methods for cryogenic removal of epoxy/wire field windings and f

1991-11-20

1993-04-06

Echols, P. W.

Metal working

Method of mechanical manufacture

Electrical device making

29598, 294264, 294265, 29762, 225 935, 156344, H02K 1502, B23P 1904

Patent

active

051991594

ABSTRACT:
A method of separating structure comprising first and second components having different coefficients of thermal expansion and bonded together with a bonding material. Separation is achieved by immersing the structure in a cryogenic cooling substance to break the bonding material as a result of the different rates of expansion of the two components and then applying a force to separate the two components. Separation of a rotor and its windings is disclosed.

REFERENCES:
patent: 3146520 (1964-09-01), D'Eustachio
patent: 3215345 (1965-11-01), Ferguson
patent: 3615960 (1971-10-01), Hoshii
patent: 4274576 (1981-06-01), Shariff
patent: 4549741 (1985-10-01), Usher et al.
patent: 4623255 (1986-11-01), Suszko
patent: 4766516 (1988-08-01), Ozdemir et al.
patent: 4969247 (1990-11-01), Rossi
patent: 5070603 (1991-12-01), Waldsmith

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