Note: Heating a titanium bracelet; create the desired finish

Objective:

To heat a titanium bracelet to 1000 °F to blacken it and create a consistent finish at the desired color 

End Product:

Titanium bracelet

Equipment:

Ambrell EASYHEAT 2kW 150-400 kHz induction heating system equipped with a remote work head containing two 0.33 μF capacitors
A single-position two-turn helical induction heating coil designed and developed specifically for this application 

Materials:

Customer-supplied titanium bracelet

Temperature:

1000 °F (538 °C)

Frequency:

210 kHz

Testing:

The bracelet was placed inside the induction coil and the heat was turned on. Within 35 seconds the center band of the bracelet turned black. The client had been using a torch, but looked to induction due to speed, safety and repeatability. 

Benefits:

  • Speed: Induction heated and darkened the bracelet rapidly, delivering an efficiency gain when compared to a torch

  • Repeatability: The bracelet can be heated quickly, consistently and efficiently with induction, making it advantageous when compared to a torch

  • Safety: There’s no open flame with a torch, so it lends itself to a safer working environment

Heating a titanium bracelet; create the desired finish

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