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Induction braze copper and brass lap joint

Induction brazing copper to copper lap joint
Induction brazing copper to copper lap joint

Induction braze copper and brass lap joint to replace torch operation. Lap joints may be brass to brass; or copper to copper. The current torch process results in excessive contaminants on the assembly, and requires extensive rework after the brazing operation.

Test 1

UltraFlex UPT-W10/150

HS-8 Heat Station

Ear muff coil

Materials
Copper coupon plates 

Braze alloy - EZ Flo 45


Power
Copper - 8 kW

Temperature
Approximately 1350°F (732°C)

Frequency

87 kHz

Time
Average time - 4 minutes

Process and Results:
For Induction braze copper and brass lap joint, EZ Flo 45 braze wire was cut into 2" lengths and placed in the interface area per the attached photograph to simulate a shim preform. In a production situation, EZ Flo 45 brazing paste is recommended. The assemblies were set up (see photographs) and heated for an average timer of 4 minutes to flow the alloy and achieve the braze.

Test 2

UltraFlex UPT-W10/150

HS-8 Heat Station

Ear muff coil

Materials
Brass coupon plates

Braze alloy - EZ Flo 45

Power
Brass - 7.8 kW

Temperature
Approximately 1350°F (732°C)

Frequency

87 kHz

Time
Average time - 4 minutes

Process and Results:
For Induction braze copper and brass lap joint, EZ Flo 45 braze wire was cut into 2" lengths and placed in the interface area per the attached photograph to simulate a shim preform. In a production situation, EZ Flo 45 brazing paste is recommended. The assemblies were set up (see photographs) and heated for an average timer of 4 minutes to flow the alloy and achieve the braze.

Videos
 https://youtu.be/zA4fAC_X1wI  - Copper
https://youtu.be/npv3RJGE3SM - Brass

PUBLISHED: 20 May 16 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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