| 摘要 |
PURPOSE:To prevent the efficiency and the torque characteristic from decreasing by bonding aqueous inorganic insulating solution to the slot of a rotor core, bonding inorganic agglomeration agent to the outer surface, drying, solidifying and then die casting aluminum in the slot. CONSTITUTION:Prescribed number of rotor punched plates 1 having slots 3 are laminated to obtain a rotor core, and aqueous inorganic insulating solution is bonded to the slot 3. After an inorganic agglomeration agent is coated on the outer surface of the rotor core, the entire rotor core is dried, and the agent and the solution are solidified. Then, aluminum is die cast in the core. The aluminum is not sprayed on the outer surface of the core. |
