R
R.Lewis
Guest
What do I need to change to lead free hand soldering pcb's (about 15 seats)?
Any advice gratefully received.
Any advice gratefully received.
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For 15 seats read 15 people hand soldering components into pcb's (Yes we"R.Lewis" <h.lewis-not this bit-@connect-2.co.uk> wrote in message
news:bnrnmg$end$1@thorium.cix.co.uk...
What do I need to change to lead free hand soldering pcb's (about 15
seats)?
Any advice gratefully received.
I'm not sure why you would want to. Lead free will probably raise the
melting point and to compensate, you would either have to use lighter
guage
or flatten it with a hammer before soldering. Since it doesn't sound like
you have much soldering to do, I wouldn't worry about it unless you are
lead
allergic.
I'm not sure why you would want to. Lead free will probably raise theWhat do I need to change to lead free hand soldering pcb's (about 15
seats)?
Any advice gratefully received.
Almost all of what I have seen published on lead-free soldering hasWhat do I need to change to lead free hand soldering pcb's (about 15 seats)?
Any advice gratefully received.
A US defence contractor has informed suppliers that lead free"Baphomet" <fandaDEATH2SPAMMERS@catskill.net> wrote in message
news:vq318nmrq6151e@corp.supernews.com...
"R.Lewis" <h.lewis-not this bit-@connect-2.co.uk> wrote in message
news:bnrnmg$end$1@thorium.cix.co.uk...
What do I need to change to lead free hand soldering pcb's (about 15
seats)?
Any advice gratefully received.
I'm not sure why you would want to. Lead free will probably raise the
melting point and to compensate, you would either have to use lighter
guage
or flatten it with a hammer before soldering. Since it doesn't sound like
you have much soldering to do, I wouldn't worry about it unless you are
lead
allergic.
For 15 seats read 15 people hand soldering components into pcb's (Yes we
also use flow soldering ).
We need to change from SnPb solders because of customer demand at this time,
and because by July 2006 we will have no choice.
--
Both of these articles discuss tin whisker growth from now obsoleteA US defence contractor has informed suppliers that lead free
soldering will be unacceptable .
They are particularly concerned about the possibility of tin whiskers
forming. Any knowledge out there.
--
ddwyer
http://www.turi.org/PDF/TI_Tin_Whiskers_and_Pb_Free_Finish_Evaluations.pdf
And yet another http://nepp.nasa.gov/whisker/anecdote/20year/
I think the O.P. was from Great Britain. Google Tin whiskers solderingIn article <bns3e7$ju7$1@thorium.cix.co.uk>, R.Lewis <h.lewis-
not@this.bit-> writes
"Baphomet" <fandaDEATH2SPAMMERS@catskill.net> wrote in message
news:vq318nmrq6151e@corp.supernews.com...
"R.Lewis" <h.lewis-not this bit-@connect-2.co.uk> wrote in message
news:bnrnmg$end$1@thorium.cix.co.uk...
What do I need to change to lead free hand soldering pcb's (about 15
seats)?
Any advice gratefully received.
I'm not sure why you would want to. Lead free will probably raise the
melting point and to compensate, you would either have to use lighter
guage
or flatten it with a hammer before soldering. Since it doesn't sound
like
you have much soldering to do, I wouldn't worry about it unless you are
lead
allergic.
For 15 seats read 15 people hand soldering components into pcb's (Yes we
also use flow soldering ).
We need to change from SnPb solders because of customer demand at this
time,
and because by July 2006 we will have no choice.
A US defence contractor has informed suppliers that lead free
soldering will be unacceptable .
They are particularly concerned about the possibility of tin whiskers
forming. Any knowledge out there.
--
ddwyer
And yet another http://nepp.nasa.gov/whisker/anecdote/20year/In article <bns3e7$ju7$1@thorium.cix.co.uk>, R.Lewis <h.lewis-
not@this.bit-> writes
"Baphomet" <fandaDEATH2SPAMMERS@catskill.net> wrote in message
news:vq318nmrq6151e@corp.supernews.com...
"R.Lewis" <h.lewis-not this bit-@connect-2.co.uk> wrote in message
news:bnrnmg$end$1@thorium.cix.co.uk...
What do I need to change to lead free hand soldering pcb's (about 15
seats)?
Any advice gratefully received.
I'm not sure why you would want to. Lead free will probably raise the
melting point and to compensate, you would either have to use lighter
guage
or flatten it with a hammer before soldering. Since it doesn't sound
like
you have much soldering to do, I wouldn't worry about it unless you are
lead
allergic.
For 15 seats read 15 people hand soldering components into pcb's (Yes we
also use flow soldering ).
We need to change from SnPb solders because of customer demand at this
time,
and because by July 2006 we will have no choice.
A US defence contractor has informed suppliers that lead free
soldering will be unacceptable .
They are particularly concerned about the possibility of tin whiskers
forming. Any knowledge out there.
--
ddwyer
temperatures below about -20 C need to be investigated. At -23 C, pureOn Fri, 31 Oct 2003 15:13:13 -0800, "Baphomet"
fandaDEATH2SPAMMERS@catskill.net> wrote:
A US defence contractor has informed suppliers that lead free
soldering will be unacceptable .
They are particularly concerned about the possibility of tin whiskers
forming. Any knowledge out there.
--
ddwyer
http://www.turi.org/PDF/TI_Tin_Whiskers_and_Pb_Free_Finish_Evaluations.pdf
And yet another http://nepp.nasa.gov/whisker/anecdote/20year/
Both of these articles discuss tin whisker growth from now obsolete
matte tin plating, not from lead free solders which are of course
considerably different and most of which are not known to be subject
to tin whisker growth. They would seem to be completely irrevelant to
the subject of lead free soldering!
For defence and automotive applications, the behaviour of the solders at
Apparently not if the government defense industry is currently proposingOn Fri, 31 Oct 2003 15:13:13 -0800, "Baphomet"
fandaDEATH2SPAMMERS@catskill.net> wrote:
A US defence contractor has informed suppliers that lead free
soldering will be unacceptable .
They are particularly concerned about the possibility of tin whiskers
forming. Any knowledge out there.
--
ddwyer
http://www.turi.org/PDF/TI_Tin_Whiskers_and_Pb_Free_Finish_Evaluations.pdf
And yet another http://nepp.nasa.gov/whisker/anecdote/20year/
Both of these articles discuss tin whisker growth from now obsolete
matte tin plating, not from lead free solders which are of course
considerably different and most of which are not known to be subject
to tin whisker growth. They would seem to be completely irrevelant to
the subject of lead free soldering!
Regards,
Glen
We're now using a lead free alloy from Kester in our lab where all theOn Thu, 30 Oct 2003 19:13:19 -0000, "R.Lewis" <h.lewis-not this
bit-@connect-2.co.uk> wrote:
What do I need to change to lead free hand soldering pcb's (about 15 seats)?
Any advice gratefully received.
Almost all of what I have seen published on lead-free soldering has
been for automated soldering only (reflow and wave primarily).
Likewise, most of the new lead free alloys seem to be availible in
paste or bar only.
Where did you hear about this supposed ban on lead-free solder? Any"Glen Walpert" <gwalpert@notaxs.com> wrote in message
news:g0p5qvccp6ju83vpm3nkld7h4nc6441ibg@4ax.com...
On Fri, 31 Oct 2003 15:13:13 -0800, "Baphomet"
fandaDEATH2SPAMMERS@catskill.net> wrote:
A US defence contractor has informed suppliers that lead free
soldering will be unacceptable .
They are particularly concerned about the possibility of tin whiskers
forming. Any knowledge out there.
--
ddwyer
http://www.turi.org/PDF/TI_Tin_Whiskers_and_Pb_Free_Finish_Evaluations.pdf
And yet another http://nepp.nasa.gov/whisker/anecdote/20year/
Both of these articles discuss tin whisker growth from now obsolete
matte tin plating, not from lead free solders which are of course
considerably different and most of which are not known to be subject
to tin whisker growth. They would seem to be completely irrevelant to
the subject of lead free soldering!
Regards,
Glen
Apparently not if the government defense industry is currently proposing
banning lead free soldering because of tin whiskers. I really don't know
first hand because I have been out of the military industrial complex since
about '77. Back then, lead free wasn't even a consideration in the mind's
eye of the most politically correct ideologue.
I'm not sure why you would want to. Lead free will probably raise the
melting point and to compensate, you would either have to use lighter guage
or flatten it with a hammer before soldering. Since it doesn't sound like
you have much soldering to do, I wouldn't worry about it unless you are lead
allergic.
"Baphomet" <fandaDEATH2SPAMMERS@catskill.net> wrote in message
news:vq318nmrq6151e@corp.supernews.com...
"R.Lewis" <h.lewis-not this bit-@connect-2.co.uk> wrote in message
news:bnrnmg$end$1@thorium.cix.co.uk...
What do I need to change to lead free hand soldering pcb's (about 15
seats)?
Any advice gratefully received.