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        Medium-frequency furnace During maintenance, the furnace body needs to be sintered. However, if the medium-frequency furnace has never been used before, it’s necessary to apply a lining to the furnace. Performing this lining operation is particularly beneficial for protecting the furnace body of the medium-frequency furnace. During the lining process, you first need to prepare the appropriate materials and then apply a protective layer inside the furnace body to ensure that the internal induction coil is properly insulated.

In addition, the medium-frequency furnace should be placed in a low-temperature fire and baked for several tens of minutes. Once this is done, it will solidify into a remarkably robust structure. As for hardness, there are no special requirements—simply carry out solution stirring and material addition as needed. As long as it doesn’t break during use, there’s no problem. Next, we’ll move on to... Medium-frequency furnace The furnace body undergoes a sintering process, during which the temperature is gradually raised and held at that elevated level for an entire day until it completely solidifies and sets. Only by properly completing these two steps can the medium-frequency furnace be ensured to operate reliably over a long period of time.

In addition, during operation, you must first check the system water flow of the medium-frequency furnace to ensure there are no leaks. During work, operators must be extremely careful and avoid touching the medium-frequency furnace with their bodies or fingers. If you notice any reddening on the furnace body, immediately disconnect the power supply. If you find cracks inside the furnace lining, you should carry out the furnace lining repair procedure again.

Open Medium-frequency furnace Before starting, carefully inspect the relevant electrical equipment, ensure that the induction coil and its water-cooling system are in good working order; otherwise, you must not directly open the furnace lid of the medium-frequency furnace. If any damage is found in the furnace lining, it should be repaired promptly—under no circumstances should melting continue when the furnace lining is excessively damaged. Power supply and furnace startup must be supervised by a dedicated person. After power is supplied, it is strictly forbidden to touch the induction coil or cables. The operator on duty must not leave their post without authorization and should pay close attention to the external conditions of both the induction coil and the crucible. During charging, check carefully to ensure that no flammable, explosive, or other hazardous substances have been inadvertently mixed into the charge material; if such substances are detected, they must be removed immediately. It is strictly prohibited to add cold or damp materials directly into the molten steel. Once the melt has filled the furnace up to the upper level, large chunks of material must no longer be added to prevent crust formation. When repairing the furnace or compacting the crucible, iron filings and iron oxide must be kept completely separate; the crucible must be compacted thoroughly and densely.

The pouring area and the pit in front of the furnace shall be free of obstructions and standing water to prevent molten steel from splashing onto the ground and causing an explosion. Medium-frequency furnace The molten steel inside the ladle must not be overfilled. When pouring with a hand-held ladle, two workers should coordinate closely and walk steadily, avoiding sudden starts or stops. After pouring, any leftover steel must be poured into a designated area and may not be dumped randomly. The medium-frequency generator room must be kept clean at all times; flammable, explosive materials and other debris are strictly prohibited from being brought into the room, and smoking is absolutely forbidden indoors.