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Induction Annealing Copper Tubing

Induction Annealing Copper Tubing

Objective

A client in the power components industry contacted THE LAB at Ambrell because they needed to heat copper tubes of two different sizes to 1200 ºF (649 ºC) for annealing.

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Evaluation

THE LAB determined that an Ambrell EKOHEAT® 45 kW, 50-150 kHz induction heating system with a multiple turn helical coil would be the right solution for the customer. The frequency for the application was 70-145 kHz depending on the size of the copper tubing. 

Initial tests were conducted to optimize the power delivered to the part. Testing for this annealing application was successful, with a time-to-heat of 5 seconds for the smaller copper tubing and 15 seconds for the larger copper tubing. This achieved the client’s objective.

Solution

Using induction heating for this annealing application was advantageous for a number of reasons. Induction is a high efficiency heating method with lower energy consumption than many other heating methods. It is also a fast, controllable and repeatable heating process that delivers an even distribution of heat. Additionally, induction is a hands-free method of heating that isn't dependent on operator skill. Finally, the expertise of THE LAB led to a solution that met their requirements. 

If you have an application that could benefit from induction heating, you should consider free applications testing from THE LAB at Ambrell. We offer remote lab service, in-person testing or you can simply send in your parts, we'll then test them, send a lab report, and return them for your inspection.

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