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How to solder very thin stranded wire?

Discussion in 'Electronic Repair' started by DaveC, Feb 21, 2013.

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  1. DaveC

    DaveC Guest

  2. N_Cook

    N_Cook Guest

    Wire-wrap was considered an adequate technique for a decade.
    2 pieces of very fine stripped wire, lay alongside each one , ends laying
    together, a microdot of hotmelt glue on the ends and then when cool gives
    something to twist between fingers, then coat with more hotmelt as
    insulation. No actual soldering
     
  3. DaveC

    DaveC Guest

    Plan A: Find a short length of very fine uninsulated wire. A single
    Sounds good.
    Not using it as earbuds. Just re-purposing the cord for a corded
    single-earphone-with-mic unit. Have both, and am an avid "not to the landfill
    will you go" kind of guy...

    And beside, I'll learn something new (ie, soldering tinsel wire).

    Dave
     
  4. DaveC

    DaveC Guest

    Wire-wrap was considered an adequate technique for a decade.
    Very interesting.

    But how does this apply to my particular need?

    Dave
     
  5. I did something like that... I just teased the wire away from the
    fibers, cut the fibers, and the enamel on the wire burned off from the
    heat of the soldering iron.

    George H.
     
  6. mike

    mike Guest

    You can tin the wire in a solder pot...or blob of solder on the end of
    an iron.
    Problem is that it will break almost instantly at the transition point from
    stiff to flexible.

    The technique mentioned above seems to be an excellent solution to that
    problem.
     
  7. notme

    notme Guest

    Plan A: Find a short length of very fine uninsulated wire. A single
    I don't understand the technique.

    The wire is enameled (insulated). Do I prepare the wire by burning (or
    sanding) off some of the enamel first?

    I start wrapping back a way and wrap toward the end of the wire?

    Then I solder not the tinsel wire but only the wrapping wire beyond the end
    of the tinsel wire? This looks like there is no actual soldering of the
    tinsel at all (which is intentional, I presume, to avoid stress points).
     
  8. DaveC

    DaveC Guest

    Then I solder not the tinsel wire but only the wrapping wire beyond the end
    No, I think the wrapping wire creates a strain relief for a way back from the
    point where you solder both the wrapping wire, the tinsel wires, and the
    mating wire.

    I think...
     
  9. micky

    micky Guest

    My kind of guy/
     
  10. micky

    micky Guest

    Yes, even before I r ead your post, I remembed reading that enamel
    insulation burned off during soldering. I've never relied on that,
    but I guess I should have, since trying to scrape off the insulation
    is enough to break the metal fibers.
     
  11. micky

    micky Guest

    Is this for the same reason solder tips dissolve in solder (slowly).

    I only use resin core, never acid core, and still the tips disappear
    after years. I wouldn't mind except I had trouble finding new
    screw-on tips a few years ago, because in the hobbyist-priced irons
    they've gone back to screw-in tips.
     
  12. The cheap lead-free stuff I have has 0.7% Cu.


    Best regards,
    Spehro Pefhany
     
  13. Jamie

    Jamie Guest

    Did you first dip the wire tail in acetone to clean off the fibers and
    any form of coating on the wire?

    After do so, you then use a small amount of flux..

    It has worked for me in the past for types of fine wire bundle in fiber
    fillers.

    Jamie
     
  14. Jamie

    Jamie Guest

    really, the junk I have has 5% in it and it hate it ! ;)

    Jamie
     
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