Note: Brazing Copper J Tube into Fittings
Objective:
To braze a copper tube ( 3/8" OD by 2-4" long) into a 3/8" fitting in less than 10 seconds. Heating must take place in a channel type coil to allow for easy loading of parts.
End Product:
Copper J Tube
Equipment:
Ambrell 10 kW output solid state induction power supply equipped with a standard heat station containing eight 0.33 μF capacitors for a total of 0.66 μF, a step down transformer, and a specifically designed induction heating coil.
Materials:
Copper Tubing and Fitting with Braze and Stay Silv White Flux
Temperature:
1300 °F
Frequency:
105 kHz
Testing:
Ambrell 10 kW solid state induction power supply was setup to achieve the following results: 2.0 kW of power was directly loaded into the copper tube resulting in a heating time of 7.2 seconds to reach the necessary 1300 °F for brazing.
Benefits:
Processing ease was achieved through the design of a unique channel type coil comprised of three turns of 1/8" copper.
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