欧美又黄又大又爽_国产高清不产二区三区_亚洲精品动漫3d免费看_yy6080理论无码一级_亚洲欧美偷国产日韩_中国少妇大p毛茸茸_污视频在线免费下载_日韩精品无码免费专场夜_在线成人精品视频_欧美黑人巨大videos在线

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