How do you know when your soldering iron is tinned?
I keep mine plugged in for 5-10 minutes then when I try tin it, the
solder beads up and just drips offs. It doesn't seem to "wet" the
Is it suppose to wet the tip of the soldering iron?
I'm using non lead solder, 95%Sn, 5% Sb (Tin/Antimony).
Also, when 1 solder two wires together, I twist the wires together,
then hold the iron to one side of the wire and hold the solder to the
opposite site. The wire should get hot and soak up the solder, right?
I've been practicing but it seems to be hit or miss so far.
On 11/28/2010 9:26 PM B_ firstname.lastname@example.org spake thus:
The problem is that the tip of your iron is dirty. You've got to get all
that scale off of it in order for solder to stick to it. Clean it.
I just use a small piece of sponge which I wet with water. Wipe tip on
A tinned tip will work better. Also, melting a little blob of solder on
the tip and then using the blob to transfer heat to the work helps.
The fashion in killing has an insouciant, flirty style this spring,
with the flaunting of well-defined muscle, wrapped in flags.
On Nov 29, 12:26 am, email@example.com wrote:
As one beginner to another.....
First, I don't know much if anything about soldering, but I do solder
wires wires together pretty often.
Second, I only solder either aluminum or copper wires, which are easy.
Third, the advise you have received here is good, but they didn't
mention that the wire has to be clean too. If the wire is old and
oxidized, it has to be clipped off or cleaned too.
Fourth, use a resin core solder.
Fifth, I scape off my tips with a knife. I have even used a bench
grinder to grind them back to a point. Then I heat up the iron and
melt solder on the tip which helps clean it, then wipe off the excess
Hope these little tips help.
Hank <~~~assuming it is a Pencil type soldering iron
Like I said, I don't know much about soldering. I'm pretty sure the
wire is aluminum and stranded. It is high quality aircraft wire. It is
silver in color. Maybe its some alloy. Anyway, what I'm doing is
working for me. :-)
On 11/30/2010 7:06 PM, firstname.lastname@example.org wrote:
You mean it will slowly flow apart if it rests on a sharp edge and cause
a short circuit? The tough nylon jacket on THHN seems to resist
that sort of break in the insulation. Geez, I just thought of the
thousands of feet of that stuff I've pulled into conduits and cable
trays over the years. :-)
On Tue, 30 Nov 2010 19:47:11 -0600, The Daring Dufas
Yep. We used to have that problem with teflon insulated wire-wrap wire. The
Gardner-Denver machines could work with it reliably, but it was easy to screw
up by tightening the wires too tight. The intermittents would drive ya'
It generally happens when its under tension going around an edge.
On Tue, 30 Nov 2010 19:06:10 -0600, " email@example.com"
There has been a lot of "bad" teflon wire out there too - if the PTFE
is not fully cured (crosslinked) it outgasses flouride, which
corrodes even siver plated wire. And before anybody says I'm blowing
smoke, here is a reference:
And aircraft (mil spec) wire can be silver plated, nickel plated, or
Also, teflon WILL burn, but it is self extinguishing - meaning it will
burn as long as a separate source of ignition exists.
I've got a reference around somewhere that covers the shortcomings of
all the mil-spec (aviation) rated wire and insulation.
There is really NONE that are "ideal". Either they have physical
limitations like cold flow or abrasion resistance, or they produce
toxins when heated or burned.
As others have said, the solder won't stick to crud. Follow these steps for
your abused iron.
1. Using a file or sandpaper, abrade off the crap from the tip of your iron
until the tip is shiny base metal (either copper or steel).
2. Plug in the iron and, when it gets hot, cover the tip with solder.
3. Periodically during your soldering project, drag your iron's tip over a
4. When the iron's tip turns black and can't be returned to shiny via the
sponge business, repeat steps 1 & 2.
5. You are correct when you twist the wires together. Soldering is an
ELECTRICAL connection, not a mechanical one. Depending on solder to hold two
items together is ultimately futile.
re: "Depending on solder to hold two items together is ultimately
Hmm...I wonder what's holding all of those little electronic
components onto the circuit boards.
I also wonder why I can easily pull twisted wires apart but I have
hard time pulling soldered wires apart.
I guess there must be something else holding that stuff together.
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