亚洲无码一级片96_邻居少妇下面好紧好多水真爽_日韩午夜理论片_百度影视资源免费在线播放_影院国产精品_成人无码在线免费播放_菠萝视频最新视频_中文字幕亚洲精品91_大地影院免费观看大全_久久婷婷国产一区三区

Solution: improved magnetizing machine design, improve the magnetic circuit efficiency of magnetizing machine, reasonable selection of wire coil current density, improve the heat dissipation condition, the magnetizing machine work cycle when meet user needs, not to exceed the maximum working temperature of the coil temperature rise allows wire insulation.

(two) the coil is not fixed. The electromagnetic force acting on the wire is the current through the wire, the flux density at the position of the wire, the length of the wire, the wires that are not fixed, vibrate when they are magnetized, because of the electromagnetic force. The result of vibration will destroy the insulation of the wire, resulting in the turn to turn short of the coil, and decrease the magnetizing field.