Soldering a Steel Housing

Objective

To heat a special steel housing to 500 ºF (260 ºC) for a soldering application

End Product

steel housing

Equipment

Ambrell 2 kW, 150-400 kHz solid state induction power supply with a remote heat station containing two 0.33 μF capacitors (total capacitance 0.66 μF). An induction heating coil designed for this application.

Materials

Steel housing Solder wire and flux

Temperature

500*F (260*C)

Frequency

200 kHz

Testing

A two-turn induction coil is used to deliver the heat energy into the steel housing. A small diameter solder wire is used to form a solder ring for the assembly process. Solder flux is applied generously to the joint area. Induction power is applied to the assembly until the solder ring flows into the joint. The same coil is used to solder multiple locations on the housing

Benefits

Ability to solder multiple locations with one coil. No need to change coils.

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