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Lead free solder

Discussion in 'Electronic Repair' started by Charles, Apr 21, 2011.

  1. Charles

    Charles Guest

    Has this had any impact on repair and rework of electronic devices and
    equipment?
     
  2. Meat Plow

    Meat Plow Guest

    Yes.
     
  3. Spamm Trappe

    Spamm Trappe Guest

    You really should do a Google Groups search before asking.
     
  4. Phil Allison

    Phil Allison Guest

    "Charles"
    ** The amount of work has increased.

    Pb free solder is often brittle and cracks easily under thermal cycling,
    stress or vibrations.

    Standard procedure round here is to remove it with wick and use some real
    60/40 Savbit solder to make the repair.



    ..... Phil
     
  5. mike

    mike Guest

    Arent't there some legal issues with that?
     
  6. Phil Allison

    Phil Allison Guest

    "mike"

    **You tell us - fuckhead

    But round here = Australia where the RoHS directive is not law.

    Nor is it law in Japan, North America and most places.

    And would not give a shit if it was.


    ..... Phil
     
  7. Phil Allison

    Phil Allison Guest

    "Phil Allison"

    ** A small correction....


    **You tell us - fuckhead

    But round here = Australia where the RoHS directive is not law.

    Nor is it law in Japan, North America and most places.

    And I would not give a shit if it was.


    .... Phil
     
  8. N_Cook

    N_Cook Guest


    This week a 6 month old amp with 2 separate PbF faults found. Plus loads of
    other problems. Test with dummy load , then speaker. Place back in the cab
    and supposed final test - another damn intermittant fault. Maybe just
    induced by my localised handling on the power amp is enough to have
    disturbed another only just holding lead-free solder joint. Luckily the
    owner has another amp he cab use and this one can sit until next week when I
    may be in a calmer frame of mind .
     
  9. N_Cook

    N_Cook Guest

    I've still not found out what they do in the automotive industry, re
    electronic engine management etc. All components will have that "lovely"
    mirror finish of tin tinning on all leads plus lead free solder? AKAIK they
    do not have a derogation to use proper solder. Cars are parked often in sub
    zero temperatures to start tin-pest and then extreme heat cycling and
    vibration is use, next to an engine ,is guaranteed to crack PbF. Toyotas
    ,with a mind of their own , comes to mind.
     
  10. Meat Plow

    Meat Plow Guest

    Finally a fairly civil post that I can agree with from you.
    I know it's just bait and tomorrow there will be a subject
    Meat Plow is a MORONIC FUCKHEAD but we're very used to it.
     
  11. This is a troll, isn't it?
     
  12. shrtrnd

    shrtrnd

    3,676
    454
    Jan 15, 2010
    The lead free solder flows at higher temperature than lead. So you have to be careful the heat you put on the components you're soldering.
    The original reason for lead in solder, was to prevent conductive 'whiskers', which grow
    from the structure of tin. This can be important in very low voltage, current devices.
    The compromise was apparently ok with modern devices (getting rid of lead), because
    it was reasoned that today's devices are cheap throw-aways, and the whiskers won't
    form in the three years of the useful life of the device, before you toss it.
    I'm old enough to remember the engineers doing studies on the effects of whiskers, to
    extend the lives of the company products. Something that manufacturers don't worry
    about anymore.
     
  13. mike

    mike Guest

    Well....
    I found this:
    Begin quote
    .. I don't know whereabouts in the world you
    are, but across Europe, strictly speaking, it is actually illegal to use
    leaded solder, or non RoHS components, to repair anything manufactured in
    lead-free after implementation of the RoHS directive, which was June 2006 (I
    think) in the UK.
    end quote.

    so I asked...rather politely...I think...

    I give the above quote more credence as it is not riddled with name calling
    and four-letter terms of endearment. Also, the tone is quite civil.

    Hmmmm...civil...I should find a word with which you'd likely be
    familiar? It's about being nice to people.

    Note that I didn't ask if YOU cared. I asked if there were issues.
     
  14. Charles

    Charles Guest

    "Mike Tomlinson" wrote in message
    This is a troll, isn't it?

    No, just trying to learn. Why would you think that, BTW?
    As to the other denizen with an itchy flame-thrower finger, of course I
    Googled before posting here.
    Newsgroups are getting awfully twitchy these days.
     
  15. Phil Allison

    Phil Allison Guest

    " Meat Plow is a MORONIC FUCKHEAD "


    ** The simple truth.




    ..... Phil
     
  16. Phil Allison

    Phil Allison Guest

    "mike the moron "
    ** Totally asinine to post an unidentified quote.

    How like you.
    ** It says nothing different to my post.

    I live in Sydney, Australia you know.

    ** I were given a precise, detailed reply that when right over your pointy
    head.

    Piss off TROLL.



    ..... Phil
     
  17. Phil Allison

    Phil Allison Guest

    "Arfa Daily"

    ** Find me one example of a person being successfully prosecuted over it.

    There is virtually no way to get caught, no easy way for outsiders to know
    and nobody gives a shit.



    ..... Phil
     
  18. Not in Europe it isn't. There are heavy fines for doing that.
     
  19. Phil Allison

    Phil Allison Guest

    "Adrian Tuddenham"

    ** The fines may exist in theory, but can you show if anyone has been fined
    for using the wrong solder for repairs ?

    There are many obvious, simple defences to such a charge and almost no way
    to get caught.

    Get real.


    ...... Phil
     
  20. N_Cook

    N_Cook Guest


    For the UK, section 14 of the RoHS Regulation

    A producer putting non-compliant EEE on the market on or after 1st July 2006
    shall be liable on summary conviction to a fine not exceeding the statutory
    maximum, which the Home Office says is currently £5,000. Or "on conviction
    on indictment to fine" - there is no statutory maximum.

    Producers failing to provide documents showing compliance within 28 days of
    an official request shall be liable on summary conviction to a fine not
    exceeding level 5 on the standard scale. Level 5, coincidentally, is also
    £5,000 at the moment.

    Failing to retain technical documentation for four years after EEE has been
    put on the market is also a not-exceeding-level-5 fine.

    EEE= electrical and electronic equipment
     
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