Loading…
23
Unpopular opinion: Hot air rework stations are overhyped for most board repairs
I just read a study from a 2022 IPC report that said over 60% of component failures on multilayer boards come from thermal stress during rework, not the original defect. People keep pushing these expensive hot air stations like they are the only way, but my old Weller soldering iron and some flux have fixed 4 out of 5 motherboard caps this year without any heat gun. Found the stat buried in a forum thread about military spec repairs, and it made me rethink my whole setup. Why spend $400 on a station when a $30 iron gets the job done 80% of the time? Has anyone else noticed their success rate dropping after switching to air?
2 comments
Log in to join the discussion
Log In2 Comments
the_rowan3mo ago
Wait, does that IPC stat specifically say the failure came from the rework itself, or just that thermal stress was present in the failure? I think you might be mixing up two different things - a high failure rate from rework heat would mean the station is the problem, but it could just as easily be bad technique or wrong temperature settings.
8
carr.willow3mo ago
you sure about that study? i read somewhere that over half those numbers come from people running their guns too hot. my buddy used to burn pads off everything till he dialed back to 300c and started using preheat. night and day difference. maybe its not the tool, maybe its the guy holding it.
4