Bonded segmented cylindrical magnet assembly

Details Bonded segmented cylindrical magnet assembly Bonded segmented cylindrical magnet assembly

1990-05-14

1991-04-09

Heinrich, Sam

Metal fusion bonding

Process

Plural joints

228182, 228203, 228246, 228254, 228258, 228212, 22826313, 29607, 29609, 148301, B23K 119

Patent

active

050057570

ABSTRACT:
A number of rare earth-cobalt permanent magnet segments are temporarily secured together by means of a tool. Before securement the segment surfaces at each interface are pre-tinned. A solder pre-form in the shape of a "wagon wheel" rests on one transverse end of the magnet so that the spokes of the pre-form overlie the interface joints. The magnet is then lowered into a gradually heated glycerine bath until the solder melts and directly flows over each interface. Upon slow cooling of the cylinder, metallurgical bonding is effected between the various segments of the magnet.

REFERENCES:
patent: 3998669 (1976-12-01), Strnat
patent: 4355236 (1982-10-01), Holsinger
patent: 4360760 (1982-11-01), Brodowski
patent: 4392080 (1983-07-01), Maschke
patent: 4429229 (1984-01-01), Gluckstern
patent: 4643347 (1987-02-01), Bronnes et al.
patent: 4902361 (1990-02-01), Lee et al.
Y. Yamazaki, et al., "The 1 GeV Proton Linac for the Japanese Hadron Facility", Gar Electroforming.

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