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Induction Brazing Copper to Brass for Stronger Fuel Containment

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Brazing a tube and fitting with induction

A client turned to THE LAB at Ambrell when they needed to heat a copper tube and brass fitting for a brazing application. The end product is used in the fuel containment industry. The application engineers in THE LAB designed a brazing solution based on their process unique heating requirements.

An Ambrell EASYHEATTM 5 kW (150-400 kHZ) induction brazing solution was determined to be the right solution given their time requirements. A custom-designed single position multiple-turn helical coil was built for the application. It took 30 seconds to heat the threaded fitting assembly to temperature and 45 seconds to heat the flare fitting assembly to temperature. The braze joints were made with white flux applied to them and braze alloy rings on the parts.


The client turned to induction from Ambrell because induction is highly repeatable, so a high quality, consistent result can be expected every time. Additionally, induction rapidly heats the part and requires a minimal footprint. Finally, when compared to torch brazing, induction is considerably more safe as it doesn't introduce a flame into the work environment. 


Do you have an application that might benefit from THE LAB's expertise? Let us know and we'll get the complimentary parts testing process started. Check out our applications library to see more brazing applications and contact us today to discuss your heating application. 

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