Production method of internal mug the net Units - in mug the net drive stirring device

摘要

PURPOSE:To easily produce the titled inner magnet unit by setting a magnet on the outer peripheral surface of a shaft member, loosely mounting a lining member on the assembly, and then placing the obtained inner magnet in a pressurizing device. CONSTITUTION:An integrally assembled unit material 1' is placed in the pressurizing device 7, gaseous nitrogen is charged in the device and compressed to about 400atm, and the pressure is kept for specified hours. Consequently, the space between the magnets 2 is pressed and deformed, and a lining member 5 is closely attached to the outer peripheral surface of the magnets 2 and the outer peripheral surface of a yoke 3a. After specified hours, the unit 1 is taken out from the pressurizing device 7, and the unit with the lining member 5 closely attached to the magnets 2 and the yoke 3a can be obtained. The external shapes of the yoke 3a and the upper shaft part 3c in the unit 1 are centered by a lathe, and finished to complete the unit as a product.