🚀 go-pugleaf

"Nik Rim" <querty@kbd.com> wrote in message 
news:FMSdnRvn7tmFQVzXnZ2dnUVZ_rudnZ2d@westnet.com.au...
>
> "Smitty Two" <prestwhich@earthlink.net> wrote in message 
> news:prestwhich-89E049.22383128092009@newsfarm.iad.highwinds-media.com...
>> In article <kk62c51rq1rhdq9he33du6t99nbjp1pqga@4ax.com>,
>> Archimedes' Lever <OneBigLever@InfiniteSeries.Org> wrote:
>>
>>> On Mon, 28 Sep 2009 06:21:13 -0700, Smitty Two 
>>> <prestwhich@earthlink.net>
>>> wrote:
>>>
>>> >In article <r7l0c5l9457i2ug2u6143cp6pllirtrauu@4ax.com>,
>>> > Archimedes' Lever <OneBigLever@InfiniteSeries.Org> wrote:
>>> >
>>> >> >As far as temperature, I agree with you. I've never found a need to
>>> >> >solder anything at less than 800F. Smaller parts just require 
>>> >> >shorter
>>> >> >dwell time.
>>> >>
>>> >>   This one is off the mark.  Perhaps you meant "at MORE than 800�F"
>>> >> That would certainly be an upper max for me, and it is quite easy to
>>> >> solder at much lower temperatures.  Well over a 100 degree 
>>> >> differential,
>>> >> and that is significant.
>>> >
>>> >Pardon my ambiguity. What I meant to say was "anything other than 
>>> >800F."
>>> >That's the upper limit on most fixed-temperature tips, or adjustable
>>> >irons.
>>>
>>>
>>>  Yes, and despite most folks cranking the damned things up that high,
>>> basic soldering operations (pre-RoHS) were NEVER meant to be performed 
>>> at
>>> that high a temperature.  Even on big 0.092" stock with lots of Copper.
>>> In that case, one should pre-heat the whole assembly a couple hundred 
>>> �F,
>>> which will insure that all the solder joints wet well and flow through
>>> properly.
>>
>> Uh-huh. I've personally hand soldered hundreds of thousands of joints at
>> 800F, and overseen the soldering of millions. Turning down the flame has
>> only one result: It takes too damn long to build the board. It's sort of
>> like the clock speed on a computer. It doesn't matter much if something
>> takes 1 second instead of 1/10 second, but it makes a big difference if
>> it takes an hour instead of 6 minutes. When I was a kid I built some
>> Heathkit stuff and spent 30 seconds making every solder connection,
>> because the iron was underpowered and I didn't know enough to know it.
>> Machine soldering is different, of course, but for hand work, 800 is
>> perfect for everything and anything.
>
>
>


Typo - should have said 800F tips......

> I concur - 700F tips are great - no problems in the last 15 years. The 
> only time I go for a 700F is  terminating some cables where the insulation 
> is super sensitive to the heat and shrinks back or melts through.
>