General > General Technical Chat

how to burn/damage PCB

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strawberry:
soldering with 400C  :popcorn:
when tip is tarnished it wont take solder even with 400C and hot air wont help either

jpanhalt:
Weller seems to disagree: https://www.mouser.com/pdfdocs/WellerSoldering.pdf

--- Quote from: page 5 ---In order to raise the temperature of solder above it’s melting point, soldering tip temperatures are usually set between 700°F and 800°F.
--- End quote ---
I keep mine set at a smidgeon under 750°F (399°C).  The only time I have ruined a tip was when I accidently left it on overnight.

strawberry:

--- Quote from: page 3 ---Insufficient tinning when working with high temperatures over 665 F (350 C) and after work interruptions of more than one hour.
--- End quote ---
use 250 C for 60/40 and sensitive boards
pb free higher
soldering and desoldering is not the same

langwadt:

--- Quote from: strawberry on May 22, 2022, 07:49:49 pm ---
--- Quote from: page 3 ---Insufficient tinning when working with high temperatures over 665 F (350 C) and after work interruptions of more than one hour.
--- End quote ---
use 250 C for 60/40 and sensitive boards
pb free higher
soldering and desoldering is not the same

--- End quote ---

250'C is far too low, everything will cooked to death before the solder melts

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