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A shop lead ripped my solder joints in front of the whole bench, and he was right
Six months back he pointed at a row of cold joints on a client board and said I was "soldering like I was paid by the hour." I switched to a hotter iron and started reflowing every joint at 350C, and my rework failures dropped off a cliff. Curious what temp you all run for lead free work on older boards.
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lindab491d ago
Run into the same issue on those old FR4 boards with big ground planes. The copper just sucks the heat right out of the tip, so a lower temp leaves you sitting there forever and the flux burns off before the joint even flows. What tip are you using for that 350C, a big chisel or something smaller? And does the board ever show any signs of delamination or lifted pads at that temp, especially around through holes? Trying to figure out if the heat is what fixed it or just the faster dwell time.
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