Solder like glue ?

JR · Nov 23, 2004

That means solder which likes glue. When i squeeze the "solder glue"
on the joint, it will be dried in few seconds and the components are
fixed on the motherboard. Of course the "solder glue" is conductive.

Does this products exist ?

So that users do not need solder iron again and save one hand

I think it's quite useful and convenient, especially for electronics
beginners / students.

Thanks very much for answer.

--

JR · Nov 23, 2004

it's your opinion.

--

"Jim Thompson" <thegreatone@example.com> źśźgŠóślĽóˇsťD:ao67q0hvbr74j4i29c8880p45lu6j74jg8@4ax.com...

On Wed, 24 Nov 2004 04:11:07 +0800, "JR" <jr@hotmail.com> wrote:

That means solder which likes glue. When i squeeze the "solder glue"
on the joint, it will be dried in few seconds and the components are
fixed on the motherboard. Of course the "solder glue" is conductive.

Does this products exist ?

So that users do not need solder iron again and save one hand

I think it's quite useful and convenient, especially for electronics
beginners / students.

Thanks very much for answer.

Solder Glue = Cold Joint ;-)

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

Jim Thompson · Nov 23, 2004

On Wed, 24 Nov 2004 05:22:38 +0800, "JR" <jr@hotmail.com> wrote:

it's your opinion.

480)460-2350 | |
| E-mail Address at Website Fax

Tim Wescott · Nov 23, 2004

JR wrote:

That means solder which likes glue. When i squeeze the "solder glue"
on the joint, it will be dried in few seconds and the components are
fixed on the motherboard. Of course the "solder glue" is conductive.

Does this products exist ?

So that users do not need solder iron again and save one hand

I think it's quite useful and convenient, especially for electronics
beginners / students.

Thanks very much for answer.

There are conductive glues out there, if that's what you mean. If they

were comparable with solder in performance I think folk would be using
them instead of sweating over lead-free solders.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Pig Bladder · Nov 23, 2004

On Wed, 24 Nov 2004 05:22:38 +0800, JR wrote:

it's your opinion.

Top-post _and_ use the sig delimiter to suppress the _whole_ post that
you're following up to?

What a waste of bandwidth you are.
--
The Pig Bladder From Uranus, still waiting for
some hot babe to ask what my favorite planet is.

Brian · Nov 23, 2004

Again, same experience here. Cold joint. Solder bonds on a much more
efficient level than glue.

That being said, it does exist. In those circuit fixing pens. Lose a pad,
use some of that stuff in a non-critical app.

"JR" <jr@hotmail.com> wrote in message news:30ho0sF30hjmkU1@uni-berlin.de...

it's your opinion.

--

"Jim Thompson" <thegreatone@example.com
źśźgŠóślĽóˇsťD:ao67q0hvbr74j4i29c8880p45lu6j74jg8@4ax.com...
On Wed, 24 Nov 2004 04:11:07 +0800, "JR" <jr@hotmail.com> wrote:

That means solder which likes glue. When i squeeze the "solder glue"
on the joint, it will be dried in few seconds and the components are
fixed on the motherboard. Of course the "solder glue" is conductive.

Does this products exist ?

So that users do not need solder iron again and save one hand

I think it's quite useful and convenient, especially for electronics
beginners / students.

Thanks very much for answer.

Solder Glue = Cold Joint ;-)

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

Nov 23, 2004

Does it have to solder? How bout silver epoxy. Used it to bond down
filters that needed good ground connection in shaky eviroments.
On Wed, 24 Nov 2004 04:11:07 +0800, "JR" <jr@hotmail.com> wrote:

That means solder which likes glue. When i squeeze the "solder glue"
on the joint, it will be dried in few seconds and the components are
fixed on the motherboard. Of course the "solder glue" is conductive.

Does this products exist ?

So that users do not need solder iron again and save one hand

I think it's quite useful and convenient, especially for electronics
beginners / students.

Thanks very much for answer.

Jim Yanik · Nov 23, 2004

Jim Thompson <thegreatone@example.com> wrote in
news:ao67q0hvbr74j4i29c8880p45lu6j74jg8@4ax.com:

On Wed, 24 Nov 2004 04:11:07 +0800, "JR" <jr@hotmail.com> wrote:

That means solder which likes glue. When i squeeze the "solder glue"
on the joint, it will be dried in few seconds and the components are
fixed on the motherboard. Of course the "solder glue" is conductive.

Does this products exist ?

So that users do not need solder iron again and save one hand

I think it's quite useful and convenient, especially for electronics
beginners / students.

Thanks very much for answer.

Solder Glue = Cold Joint ;-)

...Jim Thompson

Isn't there a silver-bearing epoxy that's used for 'cold' electrical
connections? (also for good thermal properties)
I can't remember the name of it,it was mentioned on a LED forum

--
Jim Yanik
jyanik-at-kua.net

Rhett Auricle · Nov 24, 2004

On Tue, 23 Nov 2004 18:01:24 -0600, Brian wrote:

Again, same experience here. Cold joint. Solder bonds on a much more
efficient level than glue.

That being said, it does exist. In those circuit fixing pens. Lose a pad,
use some of that stuff in a non-critical app.

Like plaster teeth?

Rich Grise · Nov 24, 2004

On Tue, 23 Nov 2004 19:14:08 -0500, sdeyoreo wrote:

Does it have to solder? How bout silver epoxy. Used it to bond down
filters that needed good ground connection in shaky eviroments.

For how long did these joints stay reliably in service?

Thanks,
Rich

Ken Smith · Nov 24, 2004

In article <Xns95AAC442AB6BAjyanikkuanet@129.250.170.85>,
Jim Yanik <jyanik@abuse.gov.> wrote:
[...]

Isn't there a silver-bearing epoxy that's used for 'cold' electrical
connections? (also for good thermal properties)
I can't remember the name of it,it was mentioned on a LED forum

Google on: silver epoxy conductive

The stuff works quite well but costs like the dickens.

--
--
kensmith@rahul.net forging knowledge

Ken Smith · Nov 24, 2004

In article <bbm7q0tsa4tc624hn30tvdabo47ms2fcc0@4ax.com>,
Jim Thompson <thegreatone@example.com> wrote:
[...]

Isn't there a silver-bearing epoxy that's used for 'cold' electrical
connections? (also for good thermal properties)
I can't remember the name of it,it was mentioned on a LED forum

Yes. But it won't "be dried in few seconds".

Some of it is thixotropic so the PCB can have a little gentle handling
after it is applied. This may solve the OPs problem even if it isn't what
he really wants.

--
--
kensmith@rahul.net forging knowledge

Tim Shoppa · Nov 24, 2004

Robert Baer <robertbaer@earthlink.net> wrote in message news:<41A43C11.9475EF4D@earthlink.net>...

I think "chemical bond" is a little extreme here. About the only
similarity it has to welding is that if it's done right it leaves a nice
shiny fillet. Well, there's hot molten metal involved. But with soldering,
the parent metal doesn't melt, just the solder. What makes the bond better
than glue is the way it _wets_ the metal of the joint. But they don't make
new compounds or anything, they just stick way better than glue. And, of
course, the metal-metal-metal joint is the only one I'd really trust to
stay conductive. In other words, don't glue your parts to the board.

Not quite correct.
There is some alloying of the copper wire and the solder.
In fact, there is an alloy of Ersin Multicore that is called SAVBIT
that has some copper in the alloy, so to protect copper tips ("bits" in
England) from being "eaten" away.

Remember the Tektronix tube scopes? They used silver-on-ceramic terminal
strips, that required a special solder because if you used "normal"
tin/lead solder it would leach silver from the terminal strip somehow. The Tek
scopes had little spools of silver-bearing solder inside that was appropriate
for repairs.

Tim.

Robert Baer · Nov 25, 2004

Tim Shoppa wrote:

Robert Baer <robertbaer@earthlink.net> wrote in message news:<41A43C11.9475EF4D@earthlink.net>...
I think "chemical bond" is a little extreme here. About the only
similarity it has to welding is that if it's done right it leaves a nice
shiny fillet. Well, there's hot molten metal involved. But with soldering,
the parent metal doesn't melt, just the solder. What makes the bond better
than glue is the way it _wets_ the metal of the joint. But they don't make
new compounds or anything, they just stick way better than glue. And, of
course, the metal-metal-metal joint is the only one I'd really trust to
stay conductive. In other words, don't glue your parts to the board.

Not quite correct.
There is some alloying of the copper wire and the solder.
In fact, there is an alloy of Ersin Multicore that is called SAVBIT
that has some copper in the alloy, so to protect copper tips ("bits" in
England) from being "eaten" away.

Remember the Tektronix tube scopes? They used silver-on-ceramic terminal
strips, that required a special solder because if you used "normal"
tin/lead solder it would leach silver from the terminal strip somehow. The Tek
scopes had little spools of silver-bearing solder inside that was appropriate
for repairs.

Tim.

Exactly the same problem.
The ceramic strrips had silver plated fillets for the components, and
standard solder would leach away the silver, due to the alloying i
mentioned.
Using a silver-bearing solder (3% silver, if i remember corretly)
prevented leaching, as the solder was already a eutectic (chemically
"balanced" alloy).

Dan Major · Nov 27, 2004

Tom MacIntyre <tom__macintyre@hotmail.com> wrote in
news:urc7q0pitcq8kan5dur1o8r0cmumnt2qv9@4ax.com:

When I studied electronics 20+ years ago, we were taught that a solder
connection actually made a chemical bond between the two metallic
surfaces, that it was comparable/similar to a melting and combining of
the two metals, there was actually a change at the atomic level.
Airplane/model glue used to do that to plastic, at least when I was a
kid. A good solder glue would have to be able to do that, I'd think.

Solder forms a compound called an amalgam, where the copper of the wire is

dissolved by the lead in the solder. The old model airplane glue was
mostly tolulene, which dissolved the pieces of plastic, then evaporated.
Neither causes a change at the atomic level.

--
Sooner dot boomer at gbronline dot com

Solder like glue ?

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