| 摘要 |
<p>A method of making a magnetically loaded pre-impregnated tape uses a heated drum 1 which is associated with a heated bath 2 containing a thermoplastic resin solution. A fibre tape material 4 is fed onto the drum 1 and, just prior to the fibre tape material meeting the periphery of the drum, the fibre tape material 4 is impregnated with an isotropic magnetic particle material 6 (e.g. nano-sized NdFeB particles) to form the pre-impregnated tape 8. The pre-impregnated tape may be fed to a heating station where it is bonded with a thermoplastic resin impregnated fibre tow to produce a magnetically loaded composite tape. Preferably, the magnetic particle material is provided in a solvent-doped slurry from a nozzle 6. Doctor blades 3, 7 and rollers 9, 10 may be provided to control the thickness of resin and magnetic particle material. A magnetically loaded pre-impregnated thermoplastic tape, a magnetically loaded composite tape, a method of making a rotor, a rotor and a mandrel for winding a magnetically loaded composite tape are further disclosed.</p> |
