Objective
Successfully braze copper wires to bus bars in under 20 seconds with induction heating.
Equipment
UPT-SBT3/100
HSB-3 Heat Station
Custom coil
Materials
• Copper wire
• Bus bar
• Brazing alloy – CuP6
Test 1 – Wire to bar:
Key Parameters
Power: 2.4 kW
Temperature: Approximately 1292° F (700° C)
Time: 14-15 sec
Test 2 – Wire to wire :
Key Parameters
Power: 2.4 kW
Temperature: Approximately 1292° F (700° C)
Time: 4-5 sec
Process:
- A custom coil is made for the test.
- In both tests, the copper wires and bus bars are assembled.
- Brazing alloy is applied.
- Induction heating is applied to the piece.
- The brazing takes 14-15 sec for wire to bus brazing and takes 4-5 sec for wire to wire brazing.
Results/Benefits:
Induction heating provides:
- Strong durable joints
- Selective and precise heat zone, resulting in less part distortion and joint stress
- Less oxidation
- Faster heating cycles
- More consistent results and suitability for large volume production, without the need for batch processing
- Technology without pollution, which is both clean and safe
Pictures
Video
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