Intermediate frequency induction power supply
February 06, 2018 07:36AM
In China, the power of induction cooker is usually divided into high frequency, intermediate frequency and power frequency. The power frequency is usually between 50Hz and 50Hz--10kHz, usually higher than 20kHz.
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The main characteristics of a power supply, power supply is not need to use the frequency conversion device, and the power supply line it is also need very special, so now most of the induction heating equipment of large induction furnace and large workpiece is used as power supply.12500KVA High Carbon Ferrochrome Melting Furnace
Two, intermediate frequency furnace, medium frequency induction heating equipment basically is the use of intermediate frequency power supply 1KHz - 8kHz for heating the workpiece, it is usually suitable for heating depth greater than 3 mm in diameter, induction heating between 20 mm and 500 mm of the workpiece is usually can be applied to surface hardened steel or cast iron. At the same time can also be used for tempering, normalizing, and metal smelting.
Three, high frequency power - can use many methods to obtain high frequency current. For example, it is possible to use the spark high frequency generator, the high frequency device of the electronic tube, and the high frequency furnace (the high frequency oscillator of the electronic tube). But because the energy output of the spark high frequency generator is very unstable, the adjustment of the frequency conversion equipment of the electronic tube is also very troublesome. Therefore, although they all have their own advantages, they are seldom used. Only when the high-frequency cooker develops rapidly, it has been applied more and more widely in the industrial field.
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