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Induction brazing steel to steel

Induction brazing steel to steel
Induction brazing steel to steel

The goal is to braze steel tube to steel tube in 60 seconds using flux and braze alloy.

Equipment
UltraFlex UPT-W15/150
HS-8 Heat Station
Two turns open end coil

Materials

  • Steel tube (Magnetic) and steel receiver
  • Braze alloy (CDA 681)
  • B-1 Flux

Temperature
Approximately 1750°F (954°C)

Frequency
148 kHz

Process:

1. The assembly was pre-fluxed (B-1) and assembled with a single braze alloy preformed ring at the interface.
2. The assembly was inverted to permit the receiving section to be at the bottom and permit gravity to assist with the alloy flow.
3. The assembly section was supported on a jack table with a center pivot to permit the parts to be rotated. This ensured uniform heating of the steel in the open "C" coil.
4. Alloy flow and joint completed in 60 seconds.
5. The material was cooled in water following the completion of brazing.
5. The joint was then cross-sectioned to validate that the brazing process had produced a strong, high quality joint.

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 than flame brazing

PUBLISHED: 28 May 15 Bookmark and Share
Company:
Ultraflex Power Technologies
Country:
USA
Tel:
+1 631 467 6814
Fax:
+1 631 980 4065
Email:
sales@ultraflexpower.com
Website:
www.ultraflexpower.com
Other News from Ultraflex Power Technologies:

»
Un-brazing and re-brazing copper angle brackets to copper strips at 760°C in less than a minute
»
Using Induction Heating to simultaneously solder two brass tubes to a brass water jacket assembly within 70 seconds
»
Brazing corrugated tubing to stainless steel pipe and cap using UltraFlex Induction Heating
»
Brazing of heat exchanger pipes
»
Induction braze copper and brass lap joint
»
Preheat magnetic steel strip with very even heating across the strip
»
Induction heating system delivered for automotive parts supplier
»
Soldering copper pins onto a PCB
»
Induction preheating of brass rods before hot forging
»
Induction soldering of PCBs with soldering paste
»
Ultraflexappoints Reynaldo Alves South American Sales Representative
»
Induction brazing steel to wolfram carbide
»
Ultraflex provides new resource for learning about Induction Heating
»
Induction pressure casting no crucible
»
Scott Taddeo heads up Ultraflex Power's West Coast office
»
Induction brazing steel to copper
»
Induction brazing steel to steel
»
Tom Dickerson joins Ultraflex as Americas Sales Manager


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