Induction Preheating Steel Tubes

Induction Preheating Steel Tubes

Objective
Induction preheating steel tubes with diameters of 14mm, 16mm, and 42mm (0.55โ€, 0.63โ€, and 1.65โ€). A 50mm (2โ€ณ) length of the tube much be heated to 900ยฐC (1650ยฐF) in under 30 seconds.

Equipment
DW-UHF-6KW-III handheld induction heater

Materials
โ€ข Steel tubesย with ODs: 14mm, 16mm and 42mm (0.55โ€, 0.63โ€, and 1.65โ€)
โ€ข Wall thicknesses: 1mm, 2mm, and 2mm (0.04โ€ณ, 0.08โ€ณ, 0.08โ€ณ)

Key Parameters
Power: 5 kW for 42mm tube, 3 kW for 14 and 16 mmย tubes
Temperature: 1740ยฐF (950ยฐC)
Time: 26 sec.

Process:

  1. Insert steel tube into theย coil.
  2. Apply induction heat for 26 seconds.
  3. Removeย the tube from the coil.

Results/Benefits:

The desired preheating temperature was achieved for less thanย 30 seconds for the three different steel tubes. Our 5 kW induction systemย can be used forย successfully preheating of steel tubes withย different diameters and thicknesses.

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