Origin and development of magnetic fluid seal
Magnetic fluid: also called magnetic fluid, magnetic fluid. Nano magnetic solid particles are evenly distributed into water-based and oil-based liquids to form a stable liquid with good fluidity and magnetic conductivity through the action of surfactants. Magnetic fluid conductive particles with excellent performance should be obtained by chemical reaction rather than traditional grinding.
Magnetic fluid sealing device: it is composed of non-magnetic base, bearing, magnetic pole, permanent magnet, magnetic shaft and magnetic fluid. Under the action of uniform and stable magnetic field, the excellent stress effect of magnetic fluid is used to fill the set space with magnetic fluid, and a multi-level "liquid O-ring" is established to achieve the sealing effect.