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Brazing Copper and Brass Assemblies

 

Induction brazing copper and brass

 

A valve manufacturer that was using a torch to braze several different copper and brass assemblies came to THE LAB at Ambrell to consider making the switch to induction heating. THE LAB determined that an Ambrell EASYHEATTM 10 kW, 150-400 kHz induction power supply would be the best system for their requirements. Multiple custom-designed single position multiple-turn coils were built to generate the required heating for this brazing application.

For each joint, initial tests were conducted to optimize the power delivered to the parts. It took 30 seconds or less to heat the joints to temperature and form a brazed assembly in each case. All joints were heated with the same coil. The smallest copper tube assembly that was tested can be heated more rapidly with a smaller coil if the client desires to do so.

 

There are several benefits to induction heating when compared to using a torch for brazing. Speed is often a benefit, as was the case here. Repeatability is also a key benefit, as induction can be easily automated and isn't dependent on operator skill like a torch. Finally, there's no open flame with induction, so it's a comparatively safer option that introduces less heat into the work environment. In the case of this client, speed, repeatability and safety all played into their decision to make the switch to induction.

 

Visit our brazing page to see numerous brazing applications assessed by THE LAB at Ambrell. And, if you have an application you'd like tested, contact THE LAB to take advantage of complimentary induction heating application testing from our expert applications team. You can even leverage our newest offering called Virtual Lab Service, where you can experience lab testing live from the comfort of your office. 

More Brazing Application Notes

 

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