Induction Heater Soldering
Induction Heater Soldering
(OP)
I am trying to solve a puzzling problem and need some help/insight. We manufacture circuit breakers. We use an induction heater to solder some small thin walled steel cans to a "header" bottom plate. The induction heater works fine for a double or triple pole unit(larger mass) but frequently fails on single pole units. What factors are critical to this operation and would cause this effect? What factors could be changed to achieve beter results?





RE: Induction Heater Soldering
There might simply be insufficient coupling with a small mass to overcome convective cooling.
TTFN
RE: Induction Heater Soldering
Power: 3 kW
Model: Nova Star 3L
Frequency: 50-485 kHz
AC kVA: 4.5
VAC Line Input: 3-phase, 220-240
Input Circuit
Breaker: 15 A
When I say it fails, what I mean is that only half (or less) of the solder melts and flows. Sometimes the units(on ly single pole) don't heat up at all and the solder paste just sits there. You can take them out of the nest and they are barely warm. We are using a 63/37 Sn-PB rosin solder paste. I know there are many variables in this process. I'm hoping someone has had a similar problem or can point me in the direction of a solution.
RE: Induction Heater Soldering
RE: Induction Heater Soldering
Gary Smith: Tel: 562-463-0677 or gsmith@ameritherm.com
He says they have an applications lab where you can try out their equipment. I would take them up on that offer and see if they can help you figure out what the actual problem is, whether it's geometry, materials, size, surface prep or whatever.
TTFN
RE: Induction Heater Soldering
HF transformer
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