01Electromagnetic coil energized for 0.5 sec.

02Pole of Alnico magnet is inverted.

03Neodymium magent and Ainico magnet become unipolar.

04Magnetic Flux of magnets is emitted on the surface of the magnet core.Thus,clamping the mold.

01Electromagnetic coil energized for 0.5 sec.

02Pole of Alnico magnet is inverted.

03Magnetic Flux of Neodymium magnet and Alnico magnet is not @ emitted from the surface of the magnet core.Thus,it unclamps the mold.