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　　 Casting electric furnace Currently popular medium-frequency induction heating melting furnaces can heat and melt scrap metal materials such as steel, aluminum, copper, gold, and silver. After adding alloying elements and undergoing processes like slag removal, these materials are transformed into qualified molten metals. Once poured into molds, they solidify to form castings. These furnaces feature quick start-up, high heating efficiency, electromagnetic stirring, immediate usability, low energy consumption, and environmental friendliness. In the casting industry, electric induction furnaces have replaced traditional equipment previously used in casting operations. Casting involves melting metals into a liquid that meets specific requirements and then pouring this liquid into molds. After cooling, solidification, and cleaning, the final castings are obtained. Compared to conventional casting processes, the use of induction furnaces significantly improves casting performance: the cast blanks are nearly pre-shaped, allowing for free machining or minimal post-processing, thereby reducing costs and shortening production times to a considerable extent. Casting is one of the fundamental processes in modern manufacturing. By employing medium-frequency induction furnaces, casting becomes more efficient, energy-saving, cost-effective, and environmentally friendly. Today, in the 21st century, the casting industry is gradually phasing out traditional coal-fired furnaces and transitioning to electric induction furnaces.

　　I. Heating Principle of Casting Electric Furnaces:

　　 Casting electric furnace It is a non-vacuum metal heating and smelting device that does not employ gas-protective components. Scrap metal is added into the melting furnace. At this point, the medium-frequency power supply is connected to the furnace coil, generating a magnetic field within the coil and thereby inducing eddy currents internally. As the induction furnace heats up, the heating and holding processes are carried out according to a predetermined temperature curve. Once the molten metal has reached the desired temperature, it is completely transferred out of the furnace and poured into molds for cooling, ultimately forming the castings.

　　II. Composition of the Casting Electric Furnace:

　　The melting system of a casting induction furnace generally consists of a transformer, low-voltage switchgear, medium-frequency power supply, steel-shell furnace body, hydraulic tilting system, leakage protection system, cooling circulation system, magnetic yoke, capacitor bank, water-cooled cables, and a charging cart.

　　III. Characteristics of Casting Electric Furnaces

　　1. The operational process is simple, highly automated, reduces labor intensity, ensures reliable smelting operations, and improves productivity.

　　2. The principle of electromagnetic induction heating enables casting electric furnaces to heat rapidly, maintain uniform temperature control, ensure homogeneous melting of metal alloys, and provide precise material control.

　　3, Casting electric furnace The temperature around the furnace body is low, resulting in high heating efficiency. Compared with other heating methods, this approach effectively reduces energy consumption, boosts labor productivity, produces zero pollution, and ensures that the equipment meets environmental protection requirements.

　　4. The casting electric furnace boasts high utilization rate and convenient product variety changes.

　　5. The furnace body can be electrically tilted for easy discharge, making it particularly suitable for casting.

　　6. The control cabinet features all-digital circuit control, resulting in a low failure rate and easy adjustment.

　　7. The casting electric furnace is equipped with features including water temperature monitoring, water pressure monitoring, phase-loss protection, overvoltage protection, overcurrent protection, voltage/current limiting, inrush current limitation, constant-current control, and soft-start functionality, ensuring smooth equipment startup, reliable protection, high speed, and stable operation.

　　8. All power devices have a margin of more than twice the rated value to ensure long-term device stability.