The use of medium-frequency induction heating furnaces is subject to specific conditions: the altitude must not exceed 3,000 meters; the ambient temperature must be between 3°C and 40°C (anti-freezing measures are required for areas where temperatures drop below 0°C); and the monthly average of maximum relative humidity in the area of use must not exceed 90%. Additionally, the surrounding environment must be free from conductive dust, explosive gases, and corrosive gases that could severely damage metal components or insulation. Site plans, requirements, or technical parameters must be provided during installation so the supplier can design a detailed on-site installation layout. Ideally, the equipment should be located outdoors in a well-ventilated, shaded, and cool area; the user is responsible for providing installation materials, necessary civil engineering work, and required tools.
Before starting the furnace, inspect the electrical equipment, water cooling system, and induction coil copper tubing to ensure they are in good condition; operation is prohibited otherwise. Promptly repair any furnace lining erosion that exceeds specified limits; smelting in a crucible with excessive lining erosion is strictly forbidden. A designated person must be responsible for switching on the power and starting the furnace. Once the power is on, touching the induction coil or cables is strictly prohibited. Personnel on duty must not leave their posts without authorization and must monitor the condition of the induction coil and the exterior of the crucible. When charging materials, check for and remove any flammable, explosive, or hazardous items; do not add cold or wet materials directly into the molten steel. Once the melt fills the upper section of the furnace, do not add large pieces of material to prevent the formation of a solid crust (bridging). Ensure no iron filings or iron oxide contaminate the material when patching the lining or ramming the crucible; the crucible must be rammed to a high density. Keep the pouring area and the pit in front of the furnace free of obstacles and standing water to prevent explosions caused by molten steel spilling onto the ground. Do not overfill ladles with molten steel. When using a manual pouring ladle, two operators must coordinate closely and move steadily-avoiding sudden starts or stops-and residual steel must be poured into a designated location rather than being dumped indiscriminately. Keep the medium-frequency generator room clean; do not bring flammable, explosive, or miscellaneous items inside, and strictly prohibit smoking within the room.