The customer’s application is brazing a heat exchanger. There are “U” returns that are brazed to the receiving tubes on the heat exchanger. These returns are used to flow the water through the heat exchanger, and keep the unit cooled. Brazing tests were conducted with flux and without flux at the customer’s request. The current process is done with a torch.
Ultraheat UPT-S5 Power Supply
HS-4 Heat Station
• Brazing preform
• Brazing flux (Test 1 only)
Temperature: 1400-1450°F (760-788°C)
Power: 2.35 kW
Time: 35 sec for first part; less for later parts, as heat is retained.