| 摘要 |
A magnet carrier includes a single piece integrally cast cage with a cast in place ferrous conducting ring circumferentially extending about a carrier axis where the cast cage has a generally U shape. The magnet carrier includes an annular axially extending base wall, an annular aft wall, or annular forward and aft end walls extending radially from the base wall, a conducting ring annular chamber that is bound by the base wall and the end walls, and a plurality of circumferentially located compartments that are bound by the annular chamber and the end walls. The ferrous conducting ring is disposed in the chamber within the cage was cast around the ring. Magnet means are disposed in each of the compartments and an annular sheathing is positioned over the compartments and bonded to the carrier such that the chamber and the compartments are hermetically sealed. The present invention includes a method of manufacturing the annular magnet carrier by forming a wax pattern of the magnet carrier with an annular conducting ring annular chamber section, placing the conducting ring over the wax pattern in the annular chamber section, and forming an investment casting shell mold around the wax pattern and conducting ring. The cast magnet carrier is then cast with the conductor ring in place by pouring molten casting material into mold, solidifying the casting material, and then separating the cast magnet carrier with the cast in place conductor ring from the surrounding mold. 19 |
