induction brazing stainless steel to copper

Objective

Induction Brazing stainless steel to copper tubing. Objective is to evaluate induction brazing solution. Customer is looking to reduce defects and for a cleaner brazing environment.

Due to different pipe size and lower volume – evaluation is performed with a induction brazing system.

Test1

Equipment

DW-HF-25kw induction brazing machine

Materials
Copper to Stainless steel tube

Power: 12.5kW
Temperature: 1400ºF to 1600ºF (760ºC to 871ºC)
Time: 9 to 11 seconds

Test2

Equipment

DW-HF-25kw induction brazing machine

Materials
Copper to Stainless steel

Power: 12.5kW
Temperature: 1400ºF to 1600ºF (760ºC to 871ºC)
Time: 9 to 11 seconds

Results and Conclusions:

Induction brazing test with U open coil was able to braze the parts in 9 to 11 seconds for the full braze cycle.

Operator training with this setup will be minimal.