Patent ID: 9304109
Filing Date: 2016-04-05
CPC Classification: B60B,G01N,H01F

Claim Text:
1. A magnetizing apparatus for magnetic particle testing of a wheel that includes a hub, a plate, and a rim in sequence from inward to outward in a radial direction of the wheel, the apparatus comprising: a conductor inserted through a bore of the hub; and a pair of auxiliary conductors connected to respective opposite end portions of the conductor, and so disposed as to face respective opposite side surfaces of the wheel, and to extend from the hub to the rim outwardly in a radial direction of the wheel, wherein the pair of auxiliary conductors and the conductor are energized with alternating current, so that a first magnetic flux which extends in a circumferential direction of the wheel is generated by the conductor and a second magnetic flux which extends in a circumferential direction of the wheel and an orientation of which is the same as an orientation of the first magnetic flux is generated by each auxiliary conductor, the wheel being magnetized by the first magnetic flux and the second magnetic flux.