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　　Casting, forging, and welding—three fundamental hot-working processes—provide the majority of raw part blanks for modern equipment manufacturing. With the rapid development of mass-produced vehicles, construction machinery, rail transit systems, and other products, the casting and forging industries are facing unprecedented growth opportunities. Currently, domestically... Casting electric furnace The specific power consumption for iron smelting per ton is 550–650 kWh. In advanced foreign smelting equipment, the specific power consumption can be as low as 500–560 kWh per ton. Production and manufacturing processes—including furnace capacity, frequency and power density, furnace structure, and cooling water systems—as well as operational and management practices, all require standardized procedures and scientific management.

　　Casting electric furnaces have been vigorously promoted in the casting industry due to their energy-saving and environmentally friendly characteristics. In recent years, a new process—using hot-air cupola furnaces to achieve dual functions of melting (and holding temperature) and short-casting cycles—has been nationally encouraged as part of the country’s industrial advancement. Vigorously developing new, energy-efficient medium-frequency power supplies and equipping them with exhaust gas treatment systems have become mandatory environmental requirements. Energy conservation is a systematic undertaking that calls for joint efforts from equipment manufacturers, users, and supporting suppliers to continuously enhance both technological and management capabilities. Taking advantage of the rare development opportunities currently available in China’s pricing landscape, we will continue to innovate our technologies, drive structural adjustments and product upgrades, ensure proper and standardized use, and fully unlock the potential of our equipment. We are confident that reaching or even approaching the advanced technological levels of foreign equipment is within reach.

　　The following is with Casting electric furnace For example, precautions for use:

　　(1) The casting electric furnace should be equipped with a dedicated rectifier transformer to increase the supply voltage and limit the transformer’s no-load operation.

　　(2) Ensure proper installation by shortening the connections between the high-voltage equipment, transformers, medium-frequency power supplies, and electric furnaces. Select high-purity T2 copper or oxygen-free copper, especially for induction coils and water-cooled cables, and increase their cross-sectional areas to effectively reduce current-induced thermal losses.

　　(3) The medium-frequency induction furnace should be selected based on the casting process, with appropriate capacity and frequency. Additionally, the power density should be increased to enhance melting efficiency and reduce unnecessary losses.

　　(4) To minimize thermal and electromagnetic losses from the furnace walls and furnace mouth, a steel-shell furnace equipped with a furnace lid is used. The connection of the furnace shell prevents short circuits caused by metal contact during operation.

　　(5) Develop a rational casting process that standardizes operational procedures—including mold making, material selection, melting, pouring, heat treatment, and cleaning—and implements scientific management to reduce energy consumption.

　　(6) Strengthen equipment management and maintenance, reduce the failure rate, and ensure smooth production. Foundry electric furnace

　　(7) Regularly check whether the connection components of all conductive systems have good contact, especially ensuring that the screws at the connection between the water-cooled cable and the induction coil are securely tightened. The insulating platform and insulating boots need to be inspected once a year.

　　(8) During the smelting process, power outages and water interruptions are strictly prohibited. During the smelting process in the casting electric furnace, continuously monitor the outlet water temperature and water pressure, ensuring that the water pressure remains between 0.1 and 0.3 MPa and the outlet water temperature stays below 55°.

　　(9) During the charging process, both cold and wet charge materials should be dried first; they must not be directly added into the molten liquid. When using the furnace for the first time, avoid using metal chips, as these chips can seep into the gaps in the furnace lining. Only when the furnace has been heated to around 1000℃ can molten iron be poured into the furnace. The heating furnace can be heated by induction through the addition of iron blocks.

　　(10) The freezing and sealing time of the charge material should not be too long to avoid furnace explosion accidents. After the furnace lining has been sintered, operate continuously at 30–50% of the rated power for more than five furnaces.