Medium frequency induction heating furnace

Medium frequency induction heating furnace

The medium frequency induction heating furnace consists of medium frequency power supply, medium frequency electric furnace body, furnace front control and other parts. The medium frequency power supply is a thyristor medium frequency power supply that converts three-phase industrial frequency AC into DC through a rectifier circuit, and then outputs single-phase medium frequency AC through an inverter circuit to supply the medium frequency induction furnace. Then, using the principle of electromagnetic induction, the workpiece is placed in an alternating magnetic field to generate eddy currents and generate heat to meet the requirements of melting and smelting. At present: the medium frequency induction heating furnace includes 1 ton medium frequency induction heating furnace, 3 ton medium frequency induction heating furnace, 3 ton medium frequency induction heating furnace, and the maximum tonnage is 40 tons medium frequency induction heating furnace

Performance characteristics of medium frequency induction heating furnace:

1. Complete equipment protection

The whole machine is equipped with water temperature, water pressure, phase loss, overvoltage, overcurrent, voltage limit/current limit, start-up overcurrent, constant current and buffer start, so that the equipment starts smoothly, the protection is reliable and rapid, and the operation is stable;

2. The layout of components is coordinated and reasonable, and maintenance is convenient;

3. On the basis of zero-voltage starting, the automatic frequency sweeping and repeated starting function is added. The voltage and current loop circuits are closely tracked, and the equipment starts and stops smoothly and stably without current shock.

4. The inverter starting signal adopts a single signal high-sensitivity trigger circuit, which further increases the starting performance of the equipment and makes the starting success rate of the equipment reach 100%;

5. The constant power circuit control system can automatically adjust the voltage and current at the setting quickly as the charge changes during production, without manual adjustment of the inverter cut-off angle;

6. It has a complete protection system for overvoltage, overcurrent, undervoltage, water shortage, phase shortage, voltage and current limiting, etc., thus ensuring the reliability and working stability of the equipment;

7. The highly integrated circuit solution is quick, simple and easy to learn for debugging and operation.