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What kind of soldering iron do you use? — Parallax Forums

What kind of soldering iron do you use?

Justin SaneJustin Sane Posts: 35
edited 2005-12-29 01:22 in General Discussion
What's your personal favorite?

I am noob when it comes to micro-soldering (I am not sure what it is called).

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Comments

  • kjennejohnkjennejohn Posts: 171
    edited 2005-12-25 02:27
    A Hakko ESD-safe model 936. Has the usual thermostat controlled heating element. You can find all kinds of tips for this, including the K-blade, which can cut plastic (messy) or solder multiple pins at the same time on fine-pitched surface mount ICs, gull wing and PLCC. Also has brute strength tips and micro-fine needle ones. The base unit is typically $100 low end, can be more. I swear by Hakko, but there are probably many copy cats on Ebay that do the job for (considerably?) less.

    Happy holidays!
    kenjj
  • PLJackPLJack Posts: 398
    edited 2005-12-25 03:22
    I'm very interested in this subject.
    I'm about to buy a soldering station for my home.

    My first thought was a Weller, they seem the standard.

    Kenjj, thanks for providing another option.
    I found your supplier web site, did not see your model.
    www.hakkousa.com/productlist.asp?CID=1

    Now I have two options to choose from. smile.gif

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    - - - PLJack - - -



    Perfection in design is not achieved when there is nothing left to add.
    It is achieved when there is nothing left to take away.
  • kjennejohnkjennejohn Posts: 171
    edited 2005-12-25 06:35
    Here you go:

    http://www.hmcelectronics.com/cgi-bin/scripts/sub/Hakko/90/1

    Marked down $20 no less, now $100 (surprise!NOT).

    Happy holidays!

    kenjj
  • Steve JoblinSteve Joblin Posts: 784
    edited 2005-12-25 14:16
    I had asked this very quesion about a year or so ago... the concensus was http://www.howardelectronics.com/index.html is one of the best places becuase of the extremely knowledgeable staff and good prices. I chose the Xytronic 137ESD and have been amazed at the difference in quality and control I have vs the Radio Shack irons.

    The results of my research yielded the following:

    1. Asking "what is the best iron" is like asking "what is the best car"... everybody has an opinion and there is no single best answer.

    2. Junk is Junk is Junk... You don't need to spend Hundreds and Hundreds of dollars for a professional iron, but buying one for $40 or less is like throwing your money away. Junky tools just don't work as well, and you can get hurt easier woking with them.

    3. A temperature display really helps for amatures to monitor status... For example, I always used to melt insulation on wires because the iron was too hot... now I have better control to get the wire just hot enough to make a good solder connection without melting the insulation. It is also helpful in desoldering where you typically need a little higher temperature. I scavange a lot of components from old VCR's , etc so being able to desolder is something I do a lot of.
  • bobledouxbobledoux Posts: 187
    edited 2005-12-25 14:51
    I've been using a 15 watt Antex for about 10 years. Its a bit light when soldering wire wrap sockets to PC board. Otherwise, it has been perfect for everything including surface mount. I just use a smaller tip when soldering 0603 components. It just plugs in, no control panel. It was originally picked up when I visited Tektronics surplus sales for $5, so it wasn't new then.
  • SN96SN96 Posts: 318
    edited 2005-12-25 15:24
    I love the PACE ST 45/45E - Digital SensaTemp Soldering Station. I have used this model every day, 8 hours a day for 3 years, and the comfort and quality is rock solid in my opinion. My favorite tip is a Plato 33-1148. This tip can be used on fine pitch QFP's as well as through hole and 0805's and 1206 smt caps and resistors. The build in tip saver is also a nice feature to make tips last longer. Our company uses these exclusively due to the performance and reliability.

    ST45_new.jpg33-1148.gif


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    Mike

    ·
  • PLJackPLJack Posts: 398
    edited 2005-12-25 16:18
    Steve Joblin said...
    I had asked this very quesion about a year or so ago... the concensus was http://www.howardelectronics.com/index.html

    This looks like a nice buy.
    www.howardelectronics.com/xytronic/137ESD.html

    Mike, www.paceusa.com seems to be down.
    where would I shop for a Pace iron?

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    - - - PLJack - - -



    Perfection in design is not achieved when there is nothing left to add.
    It is achieved when there is nothing left to take away.
  • OrionOrion Posts: 236
    edited 2005-12-25 18:13
    I'll second the xytronic. I have one similar (auto-temp 379) to the one above and love it. Matter of fact I think I got it after this was debated a while back in the forums.
  • Paul BakerPaul Baker Posts: 6,351
    edited 2005-12-26 05:48
    The Xytronics are great, the thing I like is the mini-wave tip which makes soldering fine pitch smt much easier. Also Howard Electronics frequently sells discounted trade show models (slightly used).

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  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2005-12-26 16:00
    Since the world is shifting to no lead solder, can these babies handle such?

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    "When all think alike, no one is thinking very much.' - Walter Lippmann (1889-1974)

    ······································································ Warm regards,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
  • Justin SaneJustin Sane Posts: 35
    edited 2005-12-26 17:01
    Kramer said...
    Since the world is shifting to no lead solder, can these babies handle such?

    Whats advantage/con·between Lead and Non-lead iron?

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    -Jules de Gaultier
  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2005-12-26 17:23
    Lead is toxic. So the powers that are have decided to remove it from the production of electronic equipment. We will still have batteries though which are full of lead, mercury, cadium, and other toxic substances.

    The big advantage is that lead lowers the melting point of solder [noparse][[/noparse]usually a mix of tin and lead].

    Apparently manufacturers can use tin with small amounts of copper and silver as a substitute to produce computers and whatever. It means the component have to be tolerant of a higher temperature in assembly, but it seems that has been achieved.

    The real question is how to do repair and hand-built assembly at the higher temperatures and with different metals.

    Europe apparently will not import any electronics built with lead solder in 2006.

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    "When all think alike, no one is thinking very much.' - Walter Lippmann (1889-1974)

    ······································································ Warm regards,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
  • Justin SaneJustin Sane Posts: 35
    edited 2005-12-26 17:54
    Kramer said...
    Lead is toxic. So the powers that are have decided to remove it from the production of electronic equipment. We will still have batteries though which are full of lead, mercury, cadium, and other toxic substances.

    The big advantage is that lead lowers the melting point of solder [noparse][[/noparse]usually a mix of tin and lead].

    Apparently manufacturers can use tin with small amounts of copper and silver as a substitute to produce computers and whatever. It means the component have to be tolerant of a higher temperature in assembly, but it seems that has been achieved.

    The real question is how to do repair and hand-built assembly at the higher temperatures and with different metals.

    Europe apparently will not import any electronics built with lead solder in 2006.

    Oh you were talking about rosins, I thought you were talking about Solder iron itself.
    ·
    So, manufacturer uses copper and silver as a substitute due to its high conductivity? How good is lead's ability to conduct electricity compared to copper and silver?
    ·
    I hope you don’t mind me asking some noob questions, I am new to electronic world. I got addicted to it after I took few courses at college.

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    ·"Imagination is the one weapon in the war against reality."
    -Jules de Gaultier
  • SN96SN96 Posts: 318
    edited 2005-12-27 13:49
    Justin Sane said...
    Oh you were talking about rosins, I thought you were talking about Solder iron itself.
    ·
    So, manufacturer uses copper and silver as a substitute due to its high conductivity? How good is lead's ability to conduct electricity compared to copper and silver?
    ·
    I hope you don’t mind me asking some noob questions, I am new to electronic world. I got addicted to it after I took few courses at college.

    Manufacturers are using lead free solders as an alternative due to health risk and not for its conductive properties. Lead based solders provide better conductivity and lower melting points than lead free solders. tin/silver/copper based solders seem to provide the closest match to lead based solders in regards to melting point, conductivity, reflow characteristics, joint strength etc. However, the tin/silver/copper solders still have a slightly higher melting point and·therefore heat sensitive components can be an issue. In an article I read, when they used the tin/silver/copper based solder in a wave, there was a considerable amount of gold removal from the pads/landings of the PC fabs vs. the lead based solder

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    Mike



    Post Edited (SN96) : 12/27/2005 5:57:25 PM GMT
  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2005-12-27 15:56
    Rosins? No.
    I was talking about the solder and the question of the soldering irons needing to provide more heat because of the change in materials. The conductivity is an interesting side isssue and so is the question of fluxes [noparse][[/noparse]which include rosins].

    I suppose that getting rid of the lead may change the needs for fluxes, but I am not sure how.

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    "When all think alike, no one is thinking very much.' - Walter Lippmann (1889-1974)

    ······································································ Warm regards,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
  • SN96SN96 Posts: 318
    edited 2005-12-27 18:00
    Fluxes are still used even with the lead free solders. The flux helps the solder flow as well as protect the solder from the heat.

    Here is more information on what the solder flux does. I copied this from a web site since it explains it better than I could.

    "Flux is often applied as a liquid to the surface of the base metals prior to soldering. Though flux actually has a number of purposes, the first and primary purpose of flux is to stop the base metals from oxidizing while they are being heated to the soldering temperature [noparse][[/noparse]2]. The flux covers the surface to be soldered, shielding it from oxygen and thereby preventing oxidation during heating. Most fluxes also have an acidic element that is used to remove the oxidation already present on the base metal. Using a strong acid, it would be possible to virtually completely clean off the oxidation layer. However, the use of strong acids presents a serious problem. The corrosiveness of acids desirable to remove oxidation layers is not limited to the oxidation layer. Very strong acids can be damaging to electronic components, and even mild acids leave a residue that continues to corrode after the soldering process is complete, leading to future failure. There is a definite trade off between using a flux with a strong acid that removes a lot of oxidation and is very corrosive, and using a flux with a mild acid that is not as corrosive, but does not do as good of a job removing the oxidation layer. In any case, most fluxes in common use are corrosive enough that their residue must be cleaned off after soldering.

    When the liquid solder is applied, the flux must readily move out of the way so the solder can come into direct contact with the base metal. During this process some of the flux inevitably combines with the solder. Flux designers typically take advantage of this fact and design the flux to lower the surface tension of the solder upon contact, thereby allowing a more efficient wetting.

    Fluxes can be divided into two basic parts, chemicals and solvents. The chemical portion includes the active components, while the solvent is primarily the carrying medium. The solvent determines the cleaning method that must be employed to remove the flux residue. While some fluxes can be removed with simple water treatments, many require other cleaning agents such as organic solvents, alcohol, terpenes, and chlorinated fluorocarbons. (Note: it is no longer legal to use chlorinated fluorocarbons due to environmental concerns)."

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    Mike



    Post Edited (SN96) : 12/27/2005 6:11:53 PM GMT
  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2005-12-28 04:22
    We never got to the actual melting temperature required for [noparse][[/noparse]a] traditional tin &lead based solder and the new tin/silver/copper alloy.

    I know pure tin is quite a bit higher than traditional solder. Thus, there is more chance of damage due to heat.

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    "When all think alike, no one is thinking very much.' - Walter Lippmann (1889-1974)

    ······································································ Warm regards,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
  • ChrisPChrisP Posts: 136
    edited 2005-12-29 01:22
    I've had a Weller 921ZX esd iron for several years and love it. As far as lead and no lead solders. I'm stocking up on the lead before it goes away, 12 lbs and counting [noparse]:D[/noparse]
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