Method and apparatus for making superconductive magnet coils
- El Cerrito, CA
A curved, shell-type magnet coil, adapted to be used in a superconducting magnet, is wound by providing a mandrel having a tubular cylindrical mid-portion terminating at both ends in tapered end portions formed with longitudinal slots having flexible fingers therebetween. An elongated electrical conductor is wound around an elongated oval-shaped pole island engaged with the outside of the cylindrical mid-portion, to form a multiplicity of oval-shaped turns engaged with a 180-degree segment of the mandrel. The coil turns have longitudinal portions with curved portions therebetween, engaging the tapered end portions of the mandrel. Upon completion of the winding, tapered expansion members are fully inserted into the tapered end portions, to displace the flexible fingers outwardly into a cylindrical form and to displace the curved portions of the turns into a shape conforming to such cylindrical form while also exerting increased tension upon the turns to minimize draping of the turns and to enhance the mechanical integrity of the coil. A half cylinder clamp may then be employed to clamp the coil, whereupon the coil may be solified by the use of an epoxy adhesive.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- DOE Contract Number:
- AC03-76SF00098
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 4554731
- OSTI ID:
- 865678
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
apparatus
superconductive
magnet
coils
curved
shell-type
coil
adapted
superconducting
wound
providing
mandrel
tubular
cylindrical
mid-portion
terminating
tapered
portions
formed
longitudinal
slots
flexible
fingers
therebetween
elongated
electrical
conductor
oval-shaped
pole
island
engaged
outside
form
multiplicity
180-degree
segment
engaging
completion
winding
expansion
inserted
displace
outwardly
shape
conforming
exerting
increased
tension
minimize
draping
enhance
mechanical
integrity
half
cylinder
clamp
employed
whereupon
solified
epoxy
adhesive
magnet coils
superconducting magnet
electrical conductor
shape conforming
mechanical integrity
curved portion
elongated electrical
portions formed
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