Soldering 2 electrical wires to copper buss bar

Objective

Soldering two copper wires to pre-installed turrets on a copper buss bar

End Product

bus bar

Equipment

Ambrell 1 kW induction heating system, equipped with a remote workhead containing one 1.2μF capacitor.

An induction heating coil designed and developed specifically for this application.

Materials

Solder dipped copper/nickel buss bar, 2 tinned stranded copper wires, brazing stick

Temperature

446 ºF (230 ºC)

Frequency

230 kHz

Testing

A four-turn split helical coil is used to solder the buss bar assembly. The 2 copper wires are applied to the turrets and power is applied for 30 seconds. The brazing stick is fed by hand to the heated parts and the braze flows evenly, creating the joint.

Benefits

Induction heating provides:

• Reduced solder time

• Even distribution of heating

• Joint to joint consistency 

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