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Soldering unleaded components

Discussion in 'Misc Electronics' started by Graeme, Sep 28, 2004.

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  1. Graeme

    Graeme Guest

    Hi All
    Simple (maybe) question. I've got a tin/lead plated circuit board, and some
    components which have plated leads without lead. Is it possible to make a
    good solder joint between these two? If so, what sort of solder should be
    used (leaded, unleaded)?
  2. Norm Dresner

    Norm Dresner Guest

    Have you simply tried to "tin" one of the leads with ordinary solder?
    Gently heat a lead and apply flux-core solder to it. If it's solderable,
    the solder will flow and coat (tin) the lead. If this works, you can just
    solder it like you would any other component.

  3. philo

    philo Guest

    for all electrical work you need to use *rosin* core solder...

    it's ok to use the standard lead/tin solder

    but silver solder should also be ok
  4. Graeme

    Graeme Guest

    I thank you both for your comments. Are there any web-based reports that
    investigate this process?
  5. philo

    philo Guest

    here is one of many links:

    btw: be sure to use good ventilation

    and to wash you hands well with soap and water after handling lead
  6. Graeme

    Graeme Guest

    Right, err, thanks.
    I'm not after a guide on how to solder, but I'm looking for some/any
    technical articles that describe the reliability of joints made between
    unleaded components and leaded solder.
  7. nospam

    nospam Guest

  8. philo

    philo Guest

    lead is toxic
  9. Clarence

    Clarence Guest

    How many "Lead Sniffers" or "Lead Eaters" do you know, and what happened to

    IN the over forty years I have used lead bearing solder, I have never seen or
    heard of anyone affected by the stuff. We all learned how to handle it.
  10. JeffM

    JeffM Guest

    IN the over forty years I have used lead bearing solder, I have never seen or
    You hold the part with your left hand, the iron with your right,
    and the solder in your teeth.
  11. John Fields

    John Fields Guest

  12. Jim Thompson

    Jim Thompson Guest

    Buy a good circuit vise that can be tilted, rotated, etc. Best thing
    I ever spent a lot of money on... had it now for probably 30 years.

    ...Jim Thompson
  13. Clarence

    Clarence Guest

    Sanity at last!

    I have three, on just for surface boards, one very small and one universal
    holder / vise. Also, some times you clip the iron in place and feed the
    solder, rolled into a plastic tube, to a part held in place with tweezers.
  14. Jim Thompson

    Jim Thompson Guest

    Surgical "clamps" (hemostats??) are handy circuit tools also.

    ...Jim Thompson
  15. R.Lewis

    R.Lewis Guest

    *Only* because you cannot get the full reel of solder in your mouth you have
    to cut off smaller pieces to use - which is wasteful when they get too short
    to reach the workpiece where you can see it.

    However where cost is not an issue and some of the solder can be wasted (do
    not swallow it - in large lumps it is liable to cause a serious
    constipation) I recomment the multicore solders: 3 cores of rosin, one or
    more cores of flavouring.
    Raspberry is ever popular although not my personal favourite.

    Many experienced 'tronics guru's swear by the deluxe solder with an
    anti-bacterial mouthwash in (one of) the stripes.
    Low activity rosin is recommended for those with many older type dental
  16. John Fields

    John Fields Guest

  17. Clarence

    Clarence Guest

    I presume you THINK your being funny. You failed to Make the point. Or are
    you suggesting that YOU are the one that was affected?
  18. Jim Thompson

    Jim Thompson Guest

    Ah, Yes! ROTFLMAO!

    ...Jim Thompson
  19. JeffM

    JeffM Guest

    I recomment the multicore solders:
    Mmmm. Raspberry.
  20. Clarence

    Clarence Guest

    I have no problem soldering. I even know how. It is ignorance that I find
    upsetting, along with pride in that ignorance.

    I long ago learned that if you put the solder in a tube and attach a ring to
    the tube, you can apply solder to the work by moving one finger. While holding
    the component with tweezers. The iron is held in the other hand.
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