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Working principle of hot runner heater

The operating principle is to place a primary coil with more turns and a secondary coil with less turns on the same core. The ratio of the input to output voltage is equal to the ratio of the turns of the coil, while the energy remains constant. As a result, secondary coils produce large currents at low voltage conditions. For induction heaters, the bearings are secondary coils with shorted single turns, which produce large amounts of heat through large currents at lower AC voltages. The heater itself and the yoke remain at normal temperature. Because the heating method can induce the current, the bearings will be magnetized. It is important to ensure that after bearing degaussing, make in the course of the operation will not stick to metal chip. The FAG induction heater has automatic degaussing function.

It is the use of metal to produce eddy currents in alternating magnetic fields to heat itself, usually in metal heat treatment. The principle is that when a thicker metal is in an alternating magnetic field, it will produce an electric current due to electromagnetic induction. The thicker the metal current, current flow path will form a spiral in the metal, so due to the flow of the current heat is absorbed the metal itself, will cause metal quickly warming up. This equipment is a kind of energy saving equipment for fuel oil pre heating or heating two times, it is installed in the combustion equipment before the implementation of fuel oil in heating before combustion, the high temperature (105 DEG -150 DEG) issued to reduce the fuel oil viscosity, with fully atomized combustion promoting, and ultimately achieve the purpose of saving energy. It is widely used in heavy oil, asphalt, pre heating oil and fuel oil or two heating occasions.

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