Induction melting furnace is an indispensable and important equipment in modern foundry industry. It is efficient, fast, convenient and reliable. Has long become a "significant" existence in the foundry equipment. And behind this "important" is another important existence that supports it, that is, the lining of the induction melting furnace.

　　The lining of an induction melting furnace generally needs to choose high-quality materials with sufficient fire resistance, stable chemical properties, and good thermal shock resistance. Materials that meet these requirements are often more expensive. If the furnace lining is replaced early, it will cause a small economic loss, and if the furnace lining is not replaced in time, it may cause the furnace lining to be penetrated by molten iron. In serious cases, it may even endanger the safety of equipment and operators. It is a very important matter. Today I will use it for everyone to judge the life of the induction melting furnace lining for your reference.

1. Observe the status of the instruments of the induction melting furnace

　The first method of judging the life of the lining of an induction melting furnace is to observe the condition of each instrument when the induction melting furnace is working. If the life of the furnace lining is about to expire, the needles of various meters such as frequency meters, voltmeters, ammeters and the like will continue to swing during the operation of the induction melting furnace. In this case, the lining of the induction melting furnace needs to be replaced after the work is completed. Do not continue to use it, which may cause damage to the equipment or personal injury.　

2 , listen induction melting furnace work sound　
　

In addition to "observing" with your eyes, listening to your ears is also an important step in judging the life of your induction melting furnace lining. First of all, the furnace worker is required to use the iron rod to pick up the slag normally. If there is obvious contact inductance when contacting the molten iron, then it is necessary to listen to the sound of the induction melting furnace when it is working. The sound of the liquid and the normal operation obviously change, which indicates that the molten iron may have penetrated into the furnace lining and even penetrated the furnace lining. At this time, the molten iron in the furnace should be disposed of according to the situation, and the furnace lining should be replaced.

3 , judging the life of induction melting furnace lining through circuit

In addition to the above two methods of judging the life of the lining of the induction melting furnace, in addition, when the induction melting furnace is started, the circuit sound becomes tedious. And at this time, when the circuit case and other grounded body contact the power supply, it will stop working immediately. This is not good. This situation proves that the furnace lining has been punctured by the molten iron. Be sure to cut off the power immed