The liquid heater is a heater that uses benzoic acid as a heating agent. The metal wire strengthens the refractory fiber layer, and the double-layer coating layer that is tightly combined and distributed along the entire length of the resistance wire stranded wire forms a whole with the resistance wire stranded wire in the center. The type of direct heating monomer can be bent at will and can be in close contact with the heated object. The heating monomer is repeatedly wound according to the shape and size of the heating object to form a strip shape, and then a plurality of parallel monomers are horizontally wound with a metal wire. Braided together to form a braided high-temperature electric heater that can be directly used around the heated object.
Its working principle is to install a primary coil with more turns and a secondary coil with fewer turns on the same core. The voltage ratio of the input to the output is equal to the ratio of the turns of the coil, while the energy remains the same. Therefore, the secondary coil generates a large current under low voltage conditions. For induction heaters, the bearing is a short-circuited, single-turn secondary coil that passes large currents at lower AC voltages, thereby generating large amounts of heat. The heater itself and the yoke are kept at room temperature. Since this heating method induces an electric current, the bearing becomes magnetized. It is important to ensure that the bearing is demagnetized later so that it does not pick up magnetic metal chips during operation. FAG induction heaters have automatic degaussing function.