Magnetic rods have a certain degree of corrosion resistance

Magnetic rods work environment determines that it must have a certain degree of corrosion resistance, high temperature properties, and some situations require a relatively strong magnet. By using different thicknesses of magnetic sheets can be different magnetic flux density. Select a different magnetic wand magnet can determine the maximum magnetic flux density and temperature resistance, usually in order to achieve on a conventional ∮25 10,000 gauss magnetic wand over the surface of the magnetic flux density requires a high-performance model of NdFeB magnets. High temperature magnetic rods in temperatures over 150 degrees or more general choice of SmCo magnet. But large-diameter magnetic rods do not select SmCo, after all, the price is very high samarium cobalt, a magnetic wand prices reached tens of thousands of yuan,