Hi Nicholas,

Sorry for the late reply. = A good preheater beats a hot air gun. Hands down. Always. A preheater beats= =C2=A0

everything which is why every rework station in a business= environment always has one front and center

on the table of ever= y technician. You can go hot air with products from Hakko, Pace or A.P.E. I= f you go with

Infrared, go with dark IR and avoid near IR heater = (Quartz tubes and such...). In essence, with IR, you want

a unit = that has Ersa ceramic heaters in it. Ersa ceramic heaters emit energy at a = wavelength that is easily

absorbed by inorganic materials like so= lder and other metals, but passes through organic materials such as=C2=A0

plastic. For me, dark IR heaters are a necessity.

Cheers Everybody!=C2=A0

Wear a mask, wash= your hands and stay safe!

Marvin

<= div class=3D"gmail_quote">

On Wed, Jul= 8, 2020 at 4:27 PM N (nick= las DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com] <ge= da-user AT delorie DOT com> wrote:

You did no ans= wer, I said something stupid?

> Hi,
>
> 30 years of experience in assembly and rework of electronic PCB's = and
> devices. Use a preheater to heat the board
> up prior to trying to solder the component(s) onto the board. Heat it = up to
> at least=C2=A0 110 C and not more than 130 C.
> If the board has a large ground plane, it may take 15 or 20 minutes to=
> preheat the board to a workable temperature.
>
> A good preheater changes everything in assembly and rework...
>
> Regards
>
> Marvin
>
> On Mon, Jul 6, 2020 at 6:36 PM Stephen Ecob <stephen DOT ecob AT sioi DOT com DOT au> > wrote:
>
> > I find an electric hot air gun works well. I'd probably try s= older
> > paste heated by a hot air gun with temperature monitored with an = IR
> > thermometer.
> > Regards
> > Stephen Ecob
> >
> > On Tue, Jul 7, 2020 at 3:51 AM N (nicklas DOT karlsson17 AT gmail DOT com) [via > > geda-u= ser AT delorie DOT com] <geda-user AT delorie DOT com> wrote:
> > >
> > > Anybody here have experience with soldering of high current = components
> > like current sensors and connectors on thick copper boards?
> > >
> > > I have a large solder iron and it have the necessary power b= ut tip is
> > also very large. Anyone have experience with solder iron driven b= y gas? Or
> > if wave soldering work well with high current thru hole component= s?
> > >
> > >
> > > Regards Nicklas Karlsson
> >
> >
> >
> > --
> > Stephen Ecob
> > Silicon On Inspiration
> > Sydney Australia
> > www.sioi.com.au

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