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　　 Intermediate-frequency induction furnace price What is the operating procedure for a medium-frequency induction furnace?

　　Since the principle of medium-frequency induction heating is electromagnetic induction, the heat is generated internally within the workpiece itself. After starting up, ordinary workers can begin continuous forging operations within ten minutes using a medium-frequency induction furnace, eliminating the need for specialized furnace operators to perform preheating and sealing procedures in advance. So, what is the price of a medium-frequency induction furnace? And what is the operational procedure for using a medium-frequency induction furnace?

　　Medium-frequency induction furnace price: What is the operating procedure for a medium-frequency induction furnace?

　　1. Check whether the electrical equipment, water-cooling system, induction coil copper tubing, and other components are in good condition. Before starting the furnace, ensure that all these components are in proper working order; otherwise, absolutely prohibit starting the furnace.

　　2. When the melting loss of the furnace exceeds the specified limit, it should be repaired promptly. Melting in crucibles with excessively deep melting losses is strictly prohibited.

　　3. A dedicated person should be assigned to handle power supply and furnace startup. After power is supplied, it is strictly forbidden to touch the sensors or cables. On-duty personnel must not leave their posts without authorization and should pay close attention to the external conditions of both the sensors and the crucible.

　　4. During charging, check whether there are any flammable, explosive, or hazardous substances in the charge; if so, remove them promptly. It is strictly prohibited to add cold, wet materials directly into the molten steel. Once the melt reaches the upper limit, do not add large chunks of material to prevent crust formation.

　　5. When repairing and tamping the crucible, it is strictly forbidden to mix in iron filings or iron oxide. The tamped crucible must be dense and compact.

　　6. The pouring area in front of the furnace and the pit should be free of obstructions and standing water to prevent molten steel from exploding upon contact with the ground.

　　7. The molten steel must not be filled to the brim. When pouring manually, two workers should coordinate closely with each other, walk steadily, and avoid abrupt stops. After pouring, any leftover reinforcing bars should be poured into the designated area; dropping them is strictly prohibited.

　　8. The medium-frequency generator room must be kept clean. Flammable, explosive materials and other debris are prohibited from being brought into the room. Smoking is strictly forbidden inside the room.

　　 Intermediate-frequency induction furnace price How should a medium-frequency induction furnace be maintained?

　　1. Failure of the RC snubber and equalizing resistors. The anode capacitor protection circuit is a commonly used overvoltage protection measure, connected in parallel across the thyristor terminals. This device employs pairs of series-connected thyristors, with each thyristor paralleled by an equalizing resistor, ensuring that the stable DC voltage is evenly distributed among all thyristors. If the RC snubber resistor opens up, the component fails, or a short circuit occurs somewhere, the thyristor will quickly burn out due to the loss of protective measures.

　　2. The cooling performance of thyristors deteriorates, leading to a reduction in their current-carrying capacity. The thyristors in the equipment are water-cooled. If the cooling water jacket or water pipes become blocked, or if the replaced thyristor does not fit tightly against the cooling water jacket, the thyristor’s temperature will rise excessively. The current-carrying capacity of a thyristor is closely related to the junction temperature of its PN junction (when the junction temperature reaches 85°C, the current-carrying capacity drops, which can cause the thyristor to overheat and burn out).

　　3. After prolonged use, the insulating furnace lining cracks and wears out. Once oxidized and melted, the furnace coil shorts to the workshop, causing the thyristor to burn out instantly.

　　4. The technical parameters of the inverter thyristors are too dispersed and mismatched with each other. If the two thyristors connected in series and the two pairs of thyristors diagonally opposite on the inverter bridge arm differ significantly in characteristics such as turn-off time, forward voltage drop, and trigger current, their operating states will become inconsistent, potentially causing one or more thyristors to burn out.