Removing solder

[AK]

I use my desolder gun to remove solder from circuit boards but I can't always remove enough especially when the solder is in stranded wire.

Is there some other technique?

Andy

 

[John Larkin]

On Sat, 18 May 2019 16:08:51 -0700 (PDT), AK
<scientist77017@gmail.com> wrote:

I use my desolder gun to remove solder from circuit boards but I can't always remove enough especially when the solder is in stranded wire.

Is there some other technique?

Andy

Solder wick.

It's best not to solder stranded wire to a board. The wire tends to
break if flexed.


--

John Larkin Highland Technology, Inc

lunatic fringe electronics

 

[AK]

On Saturday, May 18, 2019 at 7:56:33 PM UTC-5, John Larkin wrote:

On Sat, 18 May 2019 16:08:51 -0700 (PDT), AK
scientist77017@gmail.com> wrote:

I use my desolder gun to remove solder from circuit boards but I can't always remove enough especially when the solder is in stranded wire.

Is there some other technique?

Andy

Solder wick.

It's best not to solder stranded wire to a board. The wire tends to
break if flexed.


--

John Larkin Highland Technology, Inc

lunatic fringe electronics

Good to know.

Andy

 

[Look165]

A pump.
But add solder for removing the existing solder.

AK a Êcrit le 19/05/2019 à 01:08 :

I use my desolder gun to remove solder from circuit boards but I can't always remove enough especially when the solder is in stranded wire.

Is there some other technique?

Andy

 

[Jasen Betts]

On 2019-05-18, AK <scientist77017@gmail.com> wrote:

I use my desolder gun to remove solder from circuit boards but I can't always remove enough especially when the solder is in stranded wire.

Is there some other technique?

for multi-pin parts these are good,
https://www.aliexpress.com/item/32574393988.html
build quality is so-so, but otherwise the do the job.

but for stranded wire, just melt the joint and pull.

--
When I tried casting out nines I made a hash of it.

 

[AK]

On Sunday, May 19, 2019 at 3:38:08 AM UTC-5, Look165 wrote:

A pump.
But add solder for removing the existing solder.

AK a Êcrit le 19/05/2019 à 01:08 :
I use my desolder gun to remove solder from circuit boards but I can't always remove enough especially when the solder is in stranded wire.

Is there some other technique?

Andy

Does adding solder make the existing solder bigger so it can be sucked up easier by the solder pump?

Andy

 

[AK]

On Sunday, May 19, 2019 at 4:30:59 AM UTC-5, Jasen Betts wrote:

On 2019-05-18, AK <scientist77017@gmail.com> wrote:
I use my desolder gun to remove solder from circuit boards but I can't always remove enough especially when the solder is in stranded wire.

Is there some other technique?

for multi-pin parts these are good,
https://www.aliexpress.com/item/32574393988.html
build quality is so-so, but otherwise the do the job.

but for stranded wire, just melt the joint and pull.

--
When I tried casting out nines I made a hash of it.

thanks. Aliexpress is really cheap.

Andy

 

[AK]

On Sunday, May 19, 2019 at 3:38:08 AM UTC-5, Look165 wrote:

A pump.
But add solder for removing the existing solder.

AK a Êcrit le 19/05/2019 à 01:08 :
I use my desolder gun to remove solder from circuit boards but I can't always remove enough especially when the solder is in stranded wire.

Is there some other technique?

Andy

Thanks.

I discovered a way of removing some components.

The weight of the clip pulls the resistor down while the solder is being melted.

https://www.dropbox.com/s/7u79w2wsstip5wy/Clip.png?dl=0

 

[S Deyoreo]

On Saturday, May 18, 2019 at 7:08:54 PM UTC-4, AK wrote:

I use my desolder gun to remove solder from circuit boards but I can't always remove enough especially when the solder is in stranded wire.

Is there some other technique?

Andy

Use solder wick. It will even draw solder out of holes, to remove ICs:
https://www.digikey.com/en/blog/how-and-when-to-use-solder-wick

 

[Randy Day]

In article <03de15a4-5163-4cb1-a097-4255663eecf3@googlegroups.com>,
scientist77017@gmail.com says...

[snip]

Does adding solder make the existing solder bigger so it can be sucked up easier by the solder pump?

Andy

It increases the surface area of the tip that is
in contact with the joint, allowing more heat to
flow into the solder.

Also, if you press gently sideways on the component
lead as the solder is melting, you can often feel it
move when the solder has completely melted through.

That's when you apply suction and remove the iron.

 

[default]

On Sat, 18 May 2019 17:56:28 -0700, John Larkin
<jjlarkin@highlandtechnology.com> wrote:

On Sat, 18 May 2019 16:08:51 -0700 (PDT), AK
scientist77017@gmail.com> wrote:

I use my desolder gun to remove solder from circuit boards but I can't always remove enough especially when the solder is in stranded wire.

Is there some other technique?

Andy

Solder wick.

It's best not to solder stranded wire to a board. The wire tends to
break if flexed.

That's true of any wire. Stranded wire with solder wicked in it is
the same as solid as far as metal fatigue goes.