Method of producing a wound magnet coil
View Patent ↗A method of producing a former for winding a magnet coil, which former has a pattern of recess-defining ridges that define at least one recess into which wire may be wound to form a magnet coil. The method includes the steps of: producing an accurately machined tool bearing protrusions conforming to an inverse of said pattern of recess-defining ridges; producing said former by molding material against said accurately machined tool; and separating the former from the accurately machined tool. The invention also provides a method of producing a magnet coil employing the former so produced.
1. A method comprising the steps of:
1) producing a former for winding a magnet coil, said former having a desired coil-defining structure comprising a plurality of recess-defining ridges which define a plurality of recesses, wherein said former is produced by:
(1a) moulding material against a tool bearing a pattern of protrusions conforming to an inverse of said plurality of recess-defining ridges, so as to create the former; and
(1b) separating the former from the tool;
2) winding wire into the plurality of recesses of the former to form a corresponding at least one magnet coil;
3) impregnating said at least one magnet coil with a resin;
4) allowing the resin to cure; and
5) forming a wound magnet coil by disposing of the entire former after the resin has cured.
2. The method according to claim 1 , wherein step (3) comprises vacuum impregnating said at least one magnet coil with the curable resin.
3. The method according to claim 1 , wherein:
step (3) comprises using a resin coated wire for coil winding; and
step (4) comprises curing the resin with heat.
4. The method according to claim 1 , wherein, the step of winding is performed using a superconductive wire.
5. The method according to claim 1 , wherein the magnet coil is provided with an oversleeve of composite material.