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Brazing a brass pipe to a brass tip and wide part with induction

///Brazing a brass pipe to a brass tip and wide part with induction
Brazing a brass pipe to a brass tip and wide part with induction 2017-07-21T06:35:41+00:00

Induction Brazing of Brass

Objective
Braze a brass pipe to a wide brass part and a brass tip in under one minute using induction.

Equipment
UPT-W15/150
HS-8 Heat Station
2 turns coil

Materials
• Wide brass part
• Brass pipe
• Silver-based brazing alloy, provided by customer

Test 1 – Pipe to wide part:
Key Parameters
Power: 4.4 kW
Temperature: Approximately 1400° F (760° C)
Frequency: 134 kHz
Time: 38 sec

Test 2 – Pipe to tip:
Key Parameters
Power: 4.4 kW
Temperature: Approximately 1400° F (760° C)
Frequency: 134 kHz
Time: 17 sec

Process:
Test 1

  • The wide part and brass pipe are assembled and a brazing alloy ring is placed between them
  • The assembly is put inside the coil and induction heat is applied.
  • The joint is completed in 38 sec.

Test 2

  • The tip and pipe are assembled and a brazing alloy ring is placed between them
  • The assembly is put inside the coil and induction heat is applied.
  • The joint is completed in 17 sec.

 

Results/Benefits:
Induction heating provides:

  • Strong durable joints
  • Selective and precise heat zone, resulting in less part distortion and joint stress than welding
  • Less oxidation
  • Faster heating cycles
  • More consistent results and suitability for large volume production, without the need for batch processing
  • Safer process than flame brazing

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