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#Industry News

Company Uses Ambrell Induction to Anneal Weld Seams

Induction delivered the desired results and rapid heating

A company that manufactures venting solutions was looking to update their induction equipment, and they reached out to the applications laboratory at Ambrell for testing to assess their process. The process involved heating a weld seam for an annealing application. The client used stainless steel and galvanized steel tubes for this application.

Application engineers determined that an Ambrell EASYHEAT 4.2 kW, 150-400 kHz induction heating system was the right solution based on their application requirements. They also built a custom-designed single position coil. A piece of ceramic was secured to the bottom of the coil to ensure consistent positioning of the coil, and temperature indicating paint was applied to the part.

Heating both the galvanized and stainless-steel tubes took 6 seconds. However, testing revealed that the annealing temperature was 704 °C (1300 °F) for galvanized but 538 °C (1000 °F) for stainless. The galvanized tubes had very little discoloration from the heating, whereas the stainless-steel tubes showed slightly more discoloration.

Induction proved to be the optimal heating method for this application for several reasons. First off, the heating took just seconds, which can result in additional throughput for the client. In this case the system was being integrated into a material handling system and the induction system’s modest footprint was beneficial. Finally, induction is consistent so the client will get the same result each time.

To learn more visit www.ambrell.com.

Details

  • 1655 Lyell Ave, Rochester, NY 14606, USA
  • Brett Daly