Comprehensive PK between medium frequency induction heating electric furnace and power frequency coreless induction electric furnace

Performance showdown between medium frequency induction heating electric furnace and power frequency coreless induction electric furnace

Comparison index: medium frequency induction furnace power density

Conclusion: The allowable value of the configured power density per ton of furnace capacity of the intermediate frequency furnace changes with the power.

Comparative Index: melting operation methods

Medium frequency induction electric furnace—batch melting method; power frequency induction electric furnace—residual liquid melting method

Comparison index: requirements for adding material blocks

Medium frequency induction furnace - small requirements; power frequency induction furnace - high requirements

Comparison index: standard smelting unit consumption

Medium frequency induction furnace—500-550kw/t; Power frequency induction furnace—540-580kw/t

Conclusion: The intermediate frequency furnace has high power density, small heat loss, and high overall efficiency.

Comparison index: power adjustment range

Medium frequency induction electric furnace—0-99% stepless adjustment; power frequency induction electric furnace—step adjustment

Conclusion: The power adjustment of power frequency furnace also involves the adjustment of three-phase balance, which is more complicated.

Comparison indicator: automatic power adjustment

Medium frequency induction furnace - possible; power frequency induction furnace - difficult

Comparison index: Stirring effect of solution

Medium frequency induction furnace—adjustable; industrial frequency induction furnace—large and fixed

Conclusion: The size of the stirring effect of medium frequency changes inversely with the change of frequency.

Comparative indicator: power supply maintenance volume

Medium frequency induction furnace—smaller; power frequency induction furnace—larger

Comparison indicators: fault diagnosis and protection functions

Medium frequency induction furnace - complete, strong; power frequency induction furnace - partially

Comparison indicator: Possibility of being connected to the computer network

Medium frequency induction furnace—possible; power frequency induction furnace—difficult

Conclusion: Medium frequency can be connected with the computer melting process automatic control and management system. The total investment ratio is: 90% for medium frequency induction electric furnace and 99% for power frequency induction electric furnace.