Regularly clean the dust inside the power cabinet, especially the exterior of the thyristor chips. Wipe them clean with alcohol. While frequency converters typically have dedicated machine rooms, the actual operating environment is not ideal. In smelting and forging processes, there is a lot of dust and intense vibration; in the medium-frequency furnace through-heating and quenching process, the equipment is often close to pickling and phosphating equipment, where there are many corrosive gases. These can damage the components and reduce the insulation strength. When there is a lot of dust, surface discharge often occurs on the components. Therefore, frequent cleaning is essential to prevent malfunctions.
Regularly check the rated voltage and current of the medium-frequency furnace. This periodic testing can prevent circuit malfunctions.
Regularly inspect the medium-frequency furnace equipment. Check and tighten all bolts and nuts. Repair or replace any loose or poorly contacting contactor and relay contacts promptly. Do not continue using them to prevent more serious accidents.
Regularly check the tightness of the water pipe joints of the medium-frequency induction furnace. When using tap water or well water as the cooling water source, scale easily accumulates, affecting cooling efficiency. Replace the plastic water pipes promptly when they crack due to aging. In summer, condensation is common when using tap water for cooling; consider using a circulating water system. Stop operation if condensation is severe. Regularly check the wiring of the loads for good condition and reliable insulation.
Operators of the medium-frequency induction furnace must frequently check the water flow and pressure in each cooling circuit to ensure they are under normal operating conditions. Regularly tighten all connecting bolts and nuts to prevent poor contact, which can easily damage components. Furthermore, regularly maintain the water pump and hydraulic station motor in the water-cooled system, and periodically clean the drain fluid. This ensures the medium-frequency induction furnace operates normally and provides the necessary water and oils for operation.
Proper, regular maintenance of the medium-frequency induction furnace is crucial for extending its lifespan and ensuring the safety of operators. Since the medium-frequency furnace operates under high temperature, high pressure, and high current conditions, the room where it is located must be cleaned and maintained regularly.
