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

When choosing the magnetizing power supply, we need to decide which specification and performance of magnetizing equipment to choose according to the specific situation of magnetic materials. The main reference parameters are as follows: 1. Magnetic material (the manufacturer of magnetic material can provide relevant data) 2. Magnet size and shape 3. Are there any special requirements for the waveform of magnetic field or flux 4. Is the magnet separate or assembled 5. Number of poles 6. Saturation magnetization or quantitative magnetization 7. Production conditions and nature, whether it is used for assembly line and production efficiency

Environmental temperature. The sintered NdFeB has negative temperature coefficient (alpha Br<-0.13%/ alpha Hcj<-0.6%/ C, c), so the use of instant maximum temperature environment and sustained the highest temperature will produce different degrees of magnet demagnetization, including reversible and irreversible, recoverable and unrecoverable. Environmental humidity. NdFeB itself is easy to corrosion and oxidation. In general, we use surface treatment to protect permanent magnets, but it can not fundamentally solve the influence of ambient humidity on the magnet. The drier the environment, the longer the magnet will last. How to measure the magnetic performance? There are three main parameters: Br (Residual Induction), remanence Gauss, is a measure of the magnet foreign can provide magnetic field parameters; the coercivity of Hc (Coercive Force), Oersteds, is a measure of resistance to demagnetization parameters; energy product of BHmax, Gauss-Oersteds, is a physical quantity characterized by energy storage how much energy.

According to the magnetizing product, the size of the magnetizing coil (clamp) is determined, and the magnetic field size of the magnetizing coil (clamp) is determined by magnetism. According to the size of the magnetic field to determine the size of the magnetizer, determine the size of the magnetizing coil (fixture) according to the magnetization product, and determine the magnetic field size of the magnetizing coil (clamp) by magnetism. According to the size of the magnetic field to determine the size of the magnetizer, determine the size of the magnetizing coil (fixture) according to the magnetization product, and determine the magnetic field size of the magnetizing coil (clamp) by magnetism. According to the size of the magnetic field to determine the size of the magnetizer, determine the size of the magnetizing coil (fixture) according to the magnetization product, and determine the magnetic field size of the magnetizing coil (clamp) by magnetism. According to the size of the magnetic field to determine the size of the magnetizer, determine the size of the magnetizing coil (fixture) according to the magnetization product, and determine the magnetic field size of the magnetizing coil (clamp) by magnetism. Then according to the size of the magnetic field to determine the size of the magnetizer

According to the magnetizing product, the size of the magnetizing coil (clamp) is determined, and the magnetic field size of the magnetizing coil (clamp) is determined by magnetism. Then according to the size of the magnetic field to determine the size of the magnetizer