Energy efficiency of different heating methods during heat treatment

Heat treatment

Induction heating furnace

Resistance furnace heating

Fuel furnace heating

Direct utilization

Total utilization

Direct utilization

Total utilization

Direct utilization

Total utilization

Normalizing

69. The 4

38. 0

30. 4

6. 7

23. 8

19. 0

Quenching

78. 9

20. 5

39. 8

8. 8

33.4

33. The 4

Temper

84. The 8

22. The 0

32. The 5

7. 2

28. 8

23. The 1