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Using a pre-heater to reflow solder on a board

Discussion in 'Electronic Repair' started by Russ, Jan 28, 2007.

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  1. Russ

    Russ Guest

    I have a board with lots of parts. Most all through hole. I think
    there is a cold solder joint on it somewhere. Can I use a pre-
    heater. The ones you see being sold for SMD rework? Will this work?
    If so what should I set it for. I know it is not made for this but I
    don't have a oven, and don't want to buy one. It would take me hours
    and hours to reflow each joint. Has anyone tried this? Is the only
    way to do it one at a time or an oven? or ??

  2. <snippety>

    I don't know that a preheater will put out enough oomph to do as
    you describe.

    One thing you can try, if you're careful, is to use an Ungar 6966C
    mini heat gun, along with the narrow tubular tip, to reflow small areas
    at a time. I've had great success using this same heat gun for minor SMD
    reflow to correct cold joints, but I have no idea how well (or poorly)
    it would work for thru-hole.

    There have also been (and are) DIY projects to make a reflow oven
    out of a toaster oven. You may want to investigate this.

    Happy flowing.
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