3 ms·

As far as I know, 170C is not quite hot enough to melt solder. It would need to be around 200C.

• ics 13y ago
  Depends on the alloy, tin/bismuth will melt around 140C. I would've expected over 180C to be necessary as well though. Sn63Pb37 is very common and melts at 180C, but since it has lead I don't think it's used much in large scale electronics manufacture.
  • throwwit 13y ago
    I read somewhere the xbox gpu problem was a result of the lead-free solder used to meet environmental regulations.
    • jarin 13y ago
      THANKS OBAMA
      • KC8ZKF 13y ago
        You're blaming RoHS on Obama?
        • Anderkent 13y ago
          http://knowyourmeme.com/memes/thanks-obama http://knowyourmeme.com/memes/thanks-obama
        • throwwit 13y ago
          Must have been fond of lead paint as a kid.
  • fnordfnordfnord 13y ago
    If your electronics are RoHS compliant (they are), there is no lead.
    • kevinchen 13y ago
      Apple's laptops are RoHS, so the melting point of that lead-free solder should be even higher than 183 C.
      • ja27 13y ago
        And all the joints look like cold solder joints instead of nice, shiny but toxic, lead-filled goodness.
        • jrockway 13y ago
          I use lead-free solder for hobby work. A good joint is still shiny as you'd expect. I basically notice no difference, except the need for a higher working temperature.
• benjamincburns 13y ago
  If you're talking about a $10,000 reflow oven with tight PID control where you set the profile and go you'd be correct. if you're talking about a kitchen oven with cheap setpoint control that has a tendency to waaay overshoot, you're best off to aim a few 10's of degrees low.