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Weller soldering iron tips?

Discussion in 'Misc Electronics' started by Fred, Mar 3, 2004.

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  1. Fred

    Fred Guest

    For general soldering including surface mount, FQFPs etc what's the best
    temperature tip to use?

    Also should I opt for screwdriver shape or long conical?

    Does the number on the tip signify temperature in 00 degrees F?
     
  2. Myron Samila

    Myron Samila Guest

    Well, it kinda depends on the type of iron you have. Do you have a station??

    Yes, generally speaking, certain tips have certain temp characteristics (I guess their
    size ie: conical, limits the amount of heat that can be transferred to the tip).

    A sharp conical tip would work for most SMT re-work, SMT ICs, caps, etc.... It isn't
    easy, I swear to you!! I usually use a special iron for SMT, with a really small barrel
    for the pencil.

    Also, without it being a soldering station (being temperature controlled), temp won't be
    very accurate. I have a very good 35W Weller iron that I use for my briefcase (mobile
    work), and places a station is cumbersome to work with. But the temp is all over the
    place, bleah.... I prefer a station, the best you can afford. (the pencil being the most
    important factor in your purchase, after all, you're holding it and you want to be
    comfortable, otherwise, how will you solder SMT very well without bridging all kinds of
    joints!!!)

    My opinion anyhow, I'll see if I have a chart of all the tips available for every Weller
    application.
     
  3. Mjolinor

    Mjolinor Guest

    Can we have soem Fs and Cs here, I thought this guy must be back sodlering
    at 700c then I realised he was from the wrong side of the Atlantic :)
     
  4. Myron Samila

    Myron Samila Guest

    * The OP mentions F here first


    * The reply mentions F here.

    Where did you miss the C and Fs (see my * remarks above ;)
     
  5. Mjolinor

    Mjolinor Guest

    Here
     
  6. Fred

    Fred Guest

    I am obliged to say, from an upper hemispere view point, I am from the right
    side of the Atlantic.

    Just when I see in the Cooper website specs in degrees C and F the
    temperature in Fahrenheit seemed to be consistent with the range of numbers
    on the bits.
     
  7. Mjolinor

    Mjolinor Guest

    It's only a legal adoption anyway, the US will start using C about the same
    time as the rest of the world's public does. You really are better off
    sticking to one or the other, I am lumbered with using both ie. hot cold
    personally, freezing point of water , when will it snow, and all the other
    things that control life are done by me in F, technical stuff like soldering
    irons, melting point of aluninium :) degrees C and naturally transistor
    stuff K.

    Damn confusing it is.
     
  8. qrk

    qrk Guest

    I like using 720 deg F (380 deg C) and a Weller ETS tip for small SMT
    like QFPs. For larger SMT, an ETP tip is nice to have. These tips are
    for the variable temp soldering stations. For SMT work it is handy to
    have variable temperature. The fixed temp irons/tips are too hard to
    use for SMT work. You should also use a tip cleaner such as
    Multicore's TTC1 (best I have found so far). This cleans off oxide
    crud and tins all in one motion.

    I like the conical tips. I find the screwdriver tips are hard to use
    for SMT.

    Mark
     
  9. budgie

    budgie Guest

    I think you need to get out more. The ROW public use C as their daily measure
    in the vast majority of countries. Europe, ... , even Australia.
     
  10. Richard

    Richard Guest

    I tried a range and settled on 220 C, based on the process temperature
    ratings on the chips I'm soldering. It's low, but it does the job and I
    don't have to worry about toasting the chips. (I don't think I could
    move fast enough at 380 C to not worry, and the hotter you go the faster
    the flux burns off too.)

    Yes. ;-) A conical with a fine screwdriver tip will give great
    results. The thin long screwdriver tips look cool but have poor heat
    transfer.

    Here's a recent thread on the topic with some Weller tip numbers...
    http://groups.google.com/groups?threadm=


    FWIW, I've found it's more the technique than the iron that yields good
    SMT results. Flux and solder mask are key ingredients. With them, I've
    seen great SMT results even practicing with a cheapo Weller
    general-purpose iron & tip from my utility toolkit.

    Richard
     
  11. Myron Samila

    Myron Samila Guest


    Strangely enough, in Canada, we use Metric for just about everything (including temp).
    BUT, if you are building something, you are going to use a 4'x8' sheet of plywood, or a
    2x4 (") stud, ummmmmm...... how many sq/ft is your house?!?!? rarely do you hear someone
    using Metric in the building trade. Yes, this electrical conduit is 3 meters (ahhhh, no,
    but cable here is sold in meters)

    But, we pretty much use Metric for just about everything else, makes a lot of sense too!!!
    It is sooooooooo easy to understand compared to inches (conversions is just so easy).

    I work on cars as a hobby (I race an Italian car), and just looking at a nut or bolt, I
    can say "10mm", where when I'm working on an American car, it's like "1/4, 3/8, what
    the?!?!?" heheh.

    I also have a conversion calculator on my PDA that has some "out of date" measurements to
    convert to, like a furlong, stones, etc... heheh.

    The US does use metric though!!!! JPL is using the metric system for their Mars mission,
    etc...... JBL (a speaker manufacturer) uses metric for just about everything regarding
    the design of their speakers (voice coil, spider, magnet gap, except the diameter is
    measured in inches!)
     
  12. Fred

    Fred Guest

     
  13. Fred

    Fred Guest

    Many thanks for the replies. The consensus is towards conical tips and 700
    deg F.

    I remember a friend used a tip which was concave in shape and hence could
    carry solder effectively when doing fine work such as PQFPs. It also seemed
    to aid the removal of solder when an excess had been used and pins were
    being shorted. I can't find any such shape in the Weller series though the
    iron he used wasn't from Weller.
     
  14. I have seen US Army specifications for equipment where the dimensions are
    given in inches and the maximum weight in kilograms. And the accompanying
    software had to display distances in kilometers.
     
  15. Richard

    Richard Guest

    Search the c.a.e group for "Metcal hoof tip". There might be another
    maker too, mentioned in a prior thread with Metcal.

    I don't know about that, but solder braid works great, sometimes with a
    touch of flux.

    Weller doesn't have this tip, unfortunately.
     
  16. Richard

    Richard Guest

  17. budgie

    budgie Guest

    As distinct from the aviation industry (outside US, in metricated countries):

    Fuel in litres
    Altitude in ft
    Speed in knots, distance in nautical miles
    Weights in kg

    Go figure ....
     
  18. Tony

    Tony Guest

    The first time I ordered 8'x4' plywood sheets since metrication, I asked if they
    were metric sizes or imperial. They insisted "it's all STRICTLY metric now, you
    can't get the imperial sizes any more - 2440x1220" (and it's still the same).

    It's ALL been strictly metric in Oz for very many years, EXCEPT all the retail
    hardware stores seem to still sell Asian imperial screws and nuts, while all the
    wholesale/trade suppliers supply mostly metric.

    Tony (remove the "_" to reply by email)
     
  19. I see degrees F mentioned twice above. As for "wrong side of the
    Atlantic", there is no 'wrong' side, but for effect, you could say "Left
    side of the pond".
     
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