Explain the powerful magnets are powerful magnets made of how they can be called NdFeB, powerful magnets can be divided and bonded NdFeB sintered NdFeB, characteristics of the two magnets are: bonded neodymium in all directions have a magnetic iron boron, corrosion-resistant; NdFeB because corrosive, the surface to be coated, such as: zinc, nickel, zinc and environmental protection, environmental protection, nickel, nickel-copper-nickel, nickel-copper and nickel environmental protection. Powerful magnet manufacturing method of powder metallurgy method, the melt-quenching method, reducing diffusion and adhesive magnet four methods, powerful magnets sintered multiphase systems, medical equipment magnet shelf, except Nd2Fe14B, there are rich neodymium exist, so when smelting press Nd15Fe77B8 nominal component proportioning good reputation of medical equipment magnet alloy ingot obtained by milling to a particle size of about 3μm powder, then pressed in a vertical (~ 10kOe) direction of the external magnetic field molding. Suppress blank at about 1380K under a protective atmosphere sintering, followed by rapid cooling. Then after sintering Nd-rich phase at the melting point (about 880K), and then quickly cooled. Static magnetic shield has been widely used in electronic devices. Such as leakage flux will transformers or other movement of electrons generated by the coil effect, affect the focus of CRT or CRT electron beam. In order to improve the quality of the instrument or product, you must have missed the part implement static magnetic flux shielding. In the watch, movement of the housing in a soft iron shell can be shielded from the effect. Noted earlier, electrostatic shielding effect is very good. This is because the conductivity of metallic conductors than ten large air conductivity several orders of magnitude, while the difference between the ferromagnetic material and the air permeability of only a few orders of magnitude, typically about thousands of times. So there is always static magnetic shield magnetic flux leakage. In order to achieve better shielding effect, can be multi-layered shield to leak into the cavity where the residual magnetic flux again and again masked. So good effect magnetic shielding are generally more cumbersome. However, medical equipment magnet spot, if you want to manufacture absolute "static magnetic vacuum", medical equipment magnet, you can use a superconductor Meissner effect. Soon a superconductor in an external magnetic field, the body of the magnetic induction B is always zero. Superconductor magnet is completely resistant to having the best static magnetic shielding effect, but is still not widely used. Lowest medical equipment _ new Xin Tong magnet magnetic magnets _ medical equipment provided by the Dongguan City Tong Xin magnetic Limited. Dongguan City, Tong Xin magnetic Limited (www.dgxtxmagnet.com/) Dongguan, Guangdong, magnetic leader, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. New Tong Xin magnetic leadership with the staff warmly welcome all inquiries to discuss, with new magnetic Xin Tong better future.