The method of judging the life of the induction melting furnace lining is as follows:
1 ) Pay attention to observe the change of leakage current value during operation. If the leakage current value does not change significantly for a long time, pay attention to check whether the leak detection device is faulty and the ground wire is connected. If the leakage current value suddenly increases, it means that the molten iron has invaded. The furnace lining even breaks through the furnace lining, and the molten iron in the furnace should be handled according to the situation and no longer be used.
2 ) Calculate the life of the furnace lining based on previous experience. When the life of the furnace lining is approaching, observe the frequency meters, voltmeters, and ammeters of the induction melting furnace . If the hands of these meters continue to swing under normal working conditions, the life of the furnace lining will be Never use it again.
3 ) When the iron slag is normally used by the operator to contact the molten iron and there is contact inductance, pay attention to observe the working sound of the induction melting furnace . If the sound is "squeaked" or even when the molten iron is released, the sound changes obviously, indicating that the molten iron has penetrated into the furnace lining or even broken In the furnace lining, the molten iron in the furnace should be disposed according to the situation and no longer be used.
4 ) The working sound of the circuit becomes obviously "boring". The shell of the induction melting furnace is in contact with other grounding bodies . When the operation stops, it means that the molten iron has penetrated the furnace lining. The intermediate frequency power supply should be cut off immediately and the molten iron in the furnace should be stopped.
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