Homebrew PCBs

Please feel free to join the Homebrew_PCBs mailing list and ask
this question.

I'm forwarding it there, too. I don't require you to join to read
the archives, so if anyone answers it you can read the answers even
if you don't want to join another group.

http://groups.yahoo.com/group/Homebrew_PCBs

Steve Greenfield

--- Melanie Newman <tekpumps@...> wrote:
> First apologies for a possible duplication... I've pressed Send
> on the wrong
> email and mailed out an old draft of "PICBASIC-L Keyin letters A
> to Z with 2
> buttons".
> 
> Now for the email that should have been set....
> 
> A request for any engineers working in a company with a
> manufacturing/production environment... Can you tell me (off list
> to avoid
> excessive OT subject matter) what you're using in Wash-Up with
> what kind of
> Solder in production?
> 
> Currently we're using a low cost (about $5 per 500g/1lb) Rosin
> based Solder
> (I know, don't lecture me, the accountants control that aspect at
> the
> moment).  After assembly & soldering the boards go into a
> two-stage Wash-Up
> with Arklone-P and Arklone-L with a final compressed-air drying. 
> The net
> result is superb.  As you would expect, the boards are flux free,
> bright,
> shiny and sparkling.
> 
> I need to move away from Arklone not just for the obvious Health
> and Safety
> reasons, but in this day and age, companies have to be seen as
> "actively
> Green" and environmentally friendly - and Arklone sure doesn't
> fit into that
> concept.  If I swap the Arklone for an industrial alcohol, I can
> just
> envisage the guys in Wash-Up drinking it.
> 
> I've experimented issuing various 'No-Clean' (don't you believe
> it)
> colophony free Solders (at almost two to three times the price of
> the cheap
> stuff), and a one-stage Wash-Up (getting rid of half the problem
> is at least
> a step in the right direction), but the results were
> disappointing.  The
> biggest problem was flux splatter (at all temperatures),
> surprisingly even
> when using a 1% flux Solder.  This also necessitated the folks on
> the
> production floor having the additional chore of cleaning down
> their assembly
> frames (and finger nails!) at the end of the day.  This did not
> make a me a
> popular girl.
> 
> As a last resort, I'm now looking at the water-soluble flux
> Solders (at six
> times the price), and the accountants will probably get apoplexy
> if and when
> I suggest it.  I'm also slightly concerned at the warnings that
> you can't
> leave this stuff on your boards without washing, and whilst water
> is cheap,
> the net result isn't as good as with a fluorocarbon wash.
> 
> Hence the enquiry for possible Solder/Wash-Up alternatives.
> 
> Melanie
> 
> 
> -------------------------
> PIC BASIC Mailing List
> Crownhill Associates Ltd
> www.crownhill.co.uk
> www.picbasic.co.uk
> -------------------------
> 
> To remove yourself from this list, please send email to
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Steve,
      I saw a company on TV that was using nonlead solder. For
flux they were using Lemon juice. Board was defluxed with water. I
think it was a PBS program. They were wave soldering boards.

                                John 







--- In Homebrew_PCBs@y..., Steve Greenfield <alienrelics@y...> wrote:

> Please feel free to join the Homebrew_PCBs mailing list and ask
> this question.
> 
> I'm forwarding it there, too. I don't require you to join to read
> the archives, so if anyone answers it you can read the answers even
> if you don't want to join another group.
> 
> http://groups.yahoo.com/group/Homebrew_PCBs
> 
> Steve Greenfield
> 
> --- Melanie Newman <tekpumps@b...> wrote:
> > First apologies for a possible duplication... I've pressed Send
> > on the wrong
> > email and mailed out an old draft of "PICBASIC-L Keyin letters A
> > to Z with 2
> > buttons".
> > 
> > Now for the email that should have been set....
> > 
> > A request for any engineers working in a company with a
> > manufacturing/production environment... Can you tell me (off list
> > to avoid
> > excessive OT subject matter) what you're using in Wash-Up with
> > what kind of
> > Solder in production?
> > 
> > Currently we're using a low cost (about $5 per 500g/1lb) Rosin
> > based Solder
> > (I know, don't lecture me, the accountants control that aspect at
> > the
> > moment).  After assembly & soldering the boards go into a
> > two-stage Wash-Up
> > with Arklone-P and Arklone-L with a final compressed-air drying. 
> > The net
> > result is superb.  As you would expect, the boards are flux free,
> > bright,
> > shiny and sparkling.
> > 
> > I need to move away from Arklone not just for the obvious Health
> > and Safety
> > reasons, but in this day and age, companies have to be seen as
> > "actively
> > Green" and environmentally friendly - and Arklone sure doesn't
> > fit into that
> > concept.  If I swap the Arklone for an industrial alcohol, I can
> > just
> > envisage the guys in Wash-Up drinking it.
> > 
> > I've experimented issuing various 'No-Clean' (don't you believe
> > it)
> > colophony free Solders (at almost two to three times the price of
> > the cheap
> > stuff), and a one-stage Wash-Up (getting rid of half the problem
> > is at least
> > a step in the right direction), but the results were
> > disappointing.  The
> > biggest problem was flux splatter (at all temperatures),
> > surprisingly even
> > when using a 1% flux Solder.  This also necessitated the folks on
> > the
> > production floor having the additional chore of cleaning down
> > their assembly
> > frames (and finger nails!) at the end of the day.  This did not
> > make a me a
> > popular girl.
> > 
> > As a last resort, I'm now looking at the water-soluble flux
> > Solders (at six
> > times the price), and the accountants will probably get apoplexy
> > if and when
> > I suggest it.  I'm also slightly concerned at the warnings that
> > you can't
> > leave this stuff on your boards without washing, and whilst water
> > is cheap,
> > the net result isn't as good as with a fluorocarbon wash.
> > 
> > Hence the enquiry for possible Solder/Wash-Up alternatives.
> > 
> > Melanie
> > 
> > 
> > -------------------------
> > PIC BASIC Mailing List
> > Crownhill Associates Ltd
> > www.crownhill.co.uk
> > www.picbasic.co.uk
> > -------------------------
> > 
> > To remove yourself from this list, please send email to
> > majordomo@q...
> > with this text in its body: unsubscribe picbasic-l
> 
> 
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Games - play chess, backgammon, pool and more
> http://games.yahoo.com/