Pages: 1 [2] 3   Go Down
Author Topic: My leadless solder is going to the back of the tool drawer  (Read 1952 times)
0 Members and 1 Guest are viewing this topic.
North Yorkshire, UK
Offline Offline
Faraday Member
**
Karma: 104
Posts: 5531
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Quote
Besides, using lead solder can save the planet by using less energy - you do not need to wait ages for the lead-free stuff to melt.
That's a pretty rubbish argument smiley-grin

I use leaded solder as that's what I find easiest. I'm not in the market of producing high volume electronic goods but if I was then I'd be switching to lead free as it's better for the environment in the long run.

Who knows, when this roll of leaded runs out I might buy some decent lead free stuff and see how it works (and throw out the Kg of lead free I have sitting around which doesn't work quite so well - if I got a temp controlled iron it'd probably be ok)

I heard the stuff about lead free eating through your iron faster and that it's best to tin with tinning compound after use rather than the lead free solder to minimise this. Anyone (other than me) had their tips being eaten up by lead free?
Logged

Newcastle, England
Offline Offline
Sr. Member
****
Karma: 3
Posts: 489
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Quote
That's a pretty rubbish argument

I know. smiley-grin  My lead free solder does not take long at all to melt. Time for some maths, I think!

1 watt = conversion of 1 joule of energy per second.
My iron = 18 watts.
Assuming lead free solder takes one second longer to melt than lead solder, (just a guess, though - my lead-free solder is quick to melt, but clearly, others are not),

10 joints:
10 seconds X 18 watts: 180 more joules of energy converted.

100 joints:
100 seconds X 18 watts: 1800 more joules of energy converted.

This site says 100g of McVities digestive biscuits contain 470KCal, or 470 000 calories.

   
470 000 calories = 1 966 480 joules

(1800/1966480) X 100 = 0.915 grams of digestive biscuits. So, for 100 joints with lead-free solder, using an 18 watt iron, and the solder taking 1 second longer to melt than lead solder, you use the same amount of energy as you could get out og less than 1g of biscuit!
Now that is something to think about....

Onions.
Logged

My website: http://www.harryrabbit.co.uk/electronics/home.html Up and running now! (Feel free to look round!) smiley-grin

New River, Arizona
Offline Offline
God Member
*****
Karma: 19
Posts: 936
Arduino rocks
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Honestly though, is lead really that bad on an individual basis?  I know it is bad for a toddler to chew on lead toys and it is obviously bad for someone to suck on a fishing sinker (the lead kind), but for us normal folk, is it really a danger?  I grew up around a lot of lead, melting wheel weights to get the lead to make fishing sinkers with,  reloading firearm shells using lead bullets because they were cheaper and patching holes in cars with melted lead because it filed away nicely.  For that matter, we used to play with mercury and take it to school to show off; without them closing the school and calling the hazmat team.  I'm still alive and moderately sane.

Sure a few tons of it in the landfill from the waste of millions of people could present a problem, but will small gauge lead alloy solder hurt us?
Logged

Trying to keep my house under control http://www.desert-home.com/

North Yorkshire, UK
Offline Offline
Faraday Member
**
Karma: 104
Posts: 5531
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Quote
For that matter, we used to play with mercury and take it to school to show off; without them closing the school and calling the hazmat team.
Yeah those were the days - mercury is so cool smiley-grin

Quote
No. Not even if we were soldering on a production line 8 hours a day for decades without extractor ventilation.
Well the lead won't do you any harm there as you're not ingesting it but the flux fumes sure will.
It'll do you harm if you start eating it. My friend got hit in the nose by a lead air rifle pellet and got lead poisoning from it so it does actually do something but she was fine again a few weeks later.
Logged

UK
Offline Offline
God Member
*****
Karma: 13
Posts: 903
Twitter: @simonmonk2
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Quote

Thanks - I have one on order now. My kids will tease me mercilessly, but it'll be worth it!
Logged

--
My New Arduino Book: http://www.arduinobook.com

New River, Arizona
Offline Offline
God Member
*****
Karma: 19
Posts: 936
Arduino rocks
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

If they tease you, just wait for them to get a splinter.  Ah, sweet revenge.
Logged

Trying to keep my house under control http://www.desert-home.com/

0
Offline Offline
Full Member
***
Karma: 0
Posts: 107
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Quote

Thanks - I have one on order now. My kids will tease me mercilessly, but it'll be worth it!

I wouldn't trust my eyes with anything less than safety glasses.

Harbor Freight is cheap because their parts are small or sub standard.

Logged

0
Offline Offline
Full Member
***
Karma: 0
Posts: 107
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Anyone else find lead-less solder much harder to work with than the good old fashioned poisonous stuff?

I've been using the lead free stuff.  The key is to be patient and use a minimal amount in your approach.  I use a 1/64th inch soldering tip on a 40W soldering iron and it seems to work okay.

I don't know if I would want to try lead free on Surface Mount stuff because I don't know if it would spread as well as I would want unless I used a lot of flux.  I haven't tried it so this is just an assumption.

I used lead free on my TV-B-Gone and Sparkfun Joystick because hands will be touching those and I'm already sensitive from dust and poisons.
Logged

New River, Arizona
Offline Offline
God Member
*****
Karma: 19
Posts: 936
Arduino rocks
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

I agree about the safety glasses.  I use a pair of Harbor Freight safety glasses under the flip down visor.  They cost so little that I have pairs scattered around in various places so I don't have to hunt for them.  Of course, I don't bother with them when I doing normal stuff like pulling thorns, picking at a bump or threading a needle.  I just feel more comfortable using safety glasses when up close to something that could slip or throw off pieces.

http://www.harborfreight.com/garage-shop/eye-protection/safety-glasses-clear-99762.html

And no, I don't have any association with Harbor Freight.  It's just that they have low prices on stuff like this, and of course it wears out fast,  but not as fast as I seem to misplace it.
Logged

Trying to keep my house under control http://www.desert-home.com/

Manchester (England England)
Offline Offline
Brattain Member
*****
Karma: 627
Posts: 34233
Solder is electric glue
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Solder without lead in it is just horrendous. It also reduces the reliability of stuff made with it.
See :-
http://www.rohsusa.com/
and the other links from:-
http://www.p-m-services.co.uk/web_links.htm

Lead in solder is not dangerous, it is not like lead water pipes, it is not like being injected by a lead pellet. It has been banned on the spurious excuse of contaminating the water supply when electronic equipment is dumped in land fill. That is it, that is the only reason, it is not toxic in the form of solder.

Using lead free solder is just like sex with a condom, better than nothing but not like the real thing. Like washing your feet with your socks on.

As for the eyes, I use a head mounting visa of a slightly different design, by arranging the angle of the visa and glasses, I can look through my glasses, through the visa (times 3) or through both for three different magnifications / focus distances.

And before anyone says it was the lead in the solder that made my eyes go bad, it wasn't. It was all the sex without a condom.  smiley-wink
Logged

CO, USA
Offline Offline
God Member
*****
Karma: 5
Posts: 711
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Like washing your feet with your socks on.

But that's how I wash my socks.  smiley-lol
Logged

... it is poor civic hygiene to install technologies that could someday
facilitate a police state. -- Bruce Schneier

Vejen, Denmark
Offline Offline
Edison Member
*
Karma: 9
Posts: 1178
RAWR! ^,..,^
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Like washing your feet with your socks on.

But that's how I wash my socks.  smiley-lol
I have tried, but I find it very difficult to have both feets in the washing machine, with the socks on, and still keep up with the rpm's of the machine. If I just stop rotating my body, the fins inside the drum hits my feets, and it does quite hurt...
Logged

captain-slow.dk | non contagious!

Manchester (England England)
Offline Offline
Brattain Member
*****
Karma: 627
Posts: 34233
Solder is electric glue
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Actually I forgot to post this picture of me with a visor:-


* Head Visor.jpg (111.79 KB, 640x425 - viewed 13 times.)
Logged

UK
Offline Offline
God Member
*****
Karma: 13
Posts: 903
Twitter: @simonmonk2
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

My visor arrived from eBay. Its a miracle! I can see again! But it does cause my sons to laugh at me even more than when I'm washing my feet with my socks on.

Logged

--
My New Arduino Book: http://www.arduinobook.com

North Yorkshire, UK
Offline Offline
Faraday Member
**
Karma: 104
Posts: 5531
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Quote
My visor arrived from eBay. Its a miracle! I can see again! But it does cause my sons to laugh at me even more than when I'm washing my feet with my socks on.
Haha smiley-grin Well they'll get to that age some day...
Logged

Pages: 1 [2] 3   Go Up
Jump to: