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Energy efficiency of different heating methods during heat treatment

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