Electronics > Beginners
Soldering temperature question
wraper:
--- Quote from: tautech on February 12, 2020, 01:20:17 am ---
--- Quote ---I have not looked into the benefits of lead free solder at all,
--- End quote ---
Don't even bother unless you're into production or are forced to by legislation.
Electronics should be enjoyable not a way to accelerate baldness ! |O
--- End quote ---
But if you can get nice solder joints with lead-free, soldering with leaded solder feels uncannily too easy.
Mp3:
--- Quote from: wraper on February 12, 2020, 02:38:00 am ---
--- Quote from: tautech on February 12, 2020, 01:20:17 am ---
--- Quote ---I have not looked into the benefits of lead free solder at all,
--- End quote ---
Don't even bother unless you're into production or are forced to by legislation.
Electronics should be enjoyable not a way to accelerate baldness ! |O
--- End quote ---
But if you can get nice solder joints with lead-free, soldering with leaded solder feels uncannily too easy.
--- End quote ---
Maybe i will buy a small roll of lead-free and try to improve my skills :)
Jwillis:
--- Quote from: Mp3 on February 12, 2020, 03:13:59 am ---
--- Quote from: wraper on February 12, 2020, 02:38:00 am ---
--- Quote from: tautech on February 12, 2020, 01:20:17 am ---
--- Quote ---I have not looked into the benefits of lead free solder at all,
--- End quote ---
Don't even bother unless you're into production or are forced to by legislation.
Electronics should be enjoyable not a way to accelerate baldness ! |O
--- End quote ---
But if you can get nice solder joints with lead-free, soldering with leaded solder feels uncannily too easy.
--- End quote ---
Maybe i will buy a small roll of lead-free and try to improve my skills :)
--- End quote ---
I might consider lead free flux as well. Since lead free solder melts at a higher temperature standard rosin flux would burn off to fast .This can cause poor welds and cause a lot of blackening of your tips. Lead free flux activates at a higher temperature.
DBecker:
My go-to is lead solder, a knife tip, and a temperature of 260C. I only go higher if something isn't working, and then I'm very careful about heat damage.
I feel that I should be working at 240C and am cheating with 260C. I'm a little surprised that people are comfortable with over 300C.
KL27x:
--- Quote ---I'm a little surprised that people are comfortable with over 300C.
--- End quote ---
Check the temperatures of Metcal/Thermaltronics tips.
http://www.thermaltronics.com/mseries_ref.php
The 700 series is recommended for general use with lead solder. The temp range is from 350C for the fatty tips up to 398C for the needle-pokers. The 800 series for leadfree ranges from 420C-475C.
Even the extra low temp 600 series bottoms out at 325-358C.
When you touch the iron to a heatsink like a PCB, the temp at the joint will drop well below the set temp of the iron. Despite the iron having more power, it can't compensate for this drop. The skinnier the tip and the more copper and mass in the board, the more drop you will get. You need to at least be able to reach and maintain 200C at the joint. But you also might want a higher temp just to get the joint to flow faster. You just lift it away once the joint flows.
That said, I have never set my 888 higher than 400C, and anything higher than 340-350C or so, I make a point to turn it back down as soon as I'm done. At ~350C or higher, I find the tips will darken and oxidize fairly quickly if forgotten for a spell. Much below that, my Hakko can be left on for 20 hours without any noticeable problem with tip life. Why not just leave it at 340C minimum, then? Well, depends on the joints. If the joint flows just as fast at lower temp, it might mean you don't need to clean the tip as often. (or breathe as much flux fumes)
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