| 摘要 |
PURPOSE:To form a symmetric magnetic field in a cavity without forming a magnetic circuit in a mold in specific constitution. CONSTITUTION:Exciting coils 4a, 4b are disposed on the side faces of the fixed plate 3a and movable plate 3b of a mold clamping device 3 respectively. Each exciting coil 4a, 4b is connected to each power unit 5a, 5b respectively while each power unit 5a, 5b is connected in parallel with a controller 7, and current values and the conduction time can be controlled respectively. |
