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Thread: Soldering tips

  1. 31st August 2011, 11:03 PM #1
    markandsandy
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    Exclamation Soldering tips

    I tried to save some money and solder a new anderson plug onto my camper trailer today, and had no success. I bought a 40w iron, tinned the tip and then applied solder successfully to the 6mm auto-wire. But when I tried to heat the wire inside the anderson plug connector, I just couldn't get the solder to melt and make the bond.

    Was the iron I was using too small? Would a bigger iron have provided sufficient heat. Or is it all about technique?

    I'm trying to improve my non-existant skills so that I can make roadside repairs to my landy and trailer, as we're on the road for anothe 5 months.
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  2. 31st August 2011, 11:21 PM #2
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    d2dave
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    I reckon 40 watt is far too small. I would be using 80 watt for this.

    Dave.
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  3. 31st August 2011, 11:29 PM #3
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    tailslide
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    Hi MarkandSandy,

    Yes 40w is way to small for that job, they are really designed for electronic circuit board work. I have a 120w iron that probably would have done the job without any real problems.

    You could (carefully) use a small gas torch to heat the pin (assuming that it is take out of the plastic plug first...)

    Cheers
    Ron
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  4. 1st September 2011, 12:28 AM #4
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    THE BOOGER
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    Yep 40 is a bit too small I use a gas torch to heat the tips and melt the solder then insert the tinned wire
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  5. 1st September 2011, 04:57 AM #5
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    you're not supposed to solder anderson plugs, they're ment to be crimped.
    Dave

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  6. 1st September 2011, 06:26 AM #6
    bitdist
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    I agree, you are meant to crimp them

    If you are happen to be in melb with your travelling, I'm happy to crimp them for you
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  7. 1st September 2011, 06:35 AM #7
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    Is there anything wrong with soldering a terminal that is designed to be crimped?
    I/ve been doing it for years on smaller terminals.
    Roger
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  8. 1st September 2011, 07:10 AM #8
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    Anderson plug connectors are silver plated, which is definitely not the correct plating for solder to stick to. A rotating head crimper isn't dear enough to worry about:

    6 - 50mm² Electrical Cable Crimper Rotate Crimping Tool | eBay
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  9. 1st September 2011, 07:22 AM #9
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    Quote Originally Posted by bee utey View Post
    Anderson plug connectors are silver plated, which is definitely not the correct plating for solder to stick to. A rotating head crimper isn't dear enough to worry about:

    6 - 50mm² Electrical Cable Crimper Rotate Crimping Tool | eBay
    Silver plating, on the contrary, is just about the best possible surface for soldering (except for gold), although in practice it may not behave any better than a clean tinned surface (and like any surface for soldering it needs to be clean). Historically the best quality plugs designed for soldering have had silver plated connectors, both the connecting and soldering parts.

    And some of us, perhaps less well off, would consider spending fifty dollars for a tool you might only use once to be something to worry about!

    John
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  10. 1st September 2011, 08:54 AM #10
    markandsandy
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    Thanks All

    Sounds like in this case I can lay at least some blame on the tool then (and the rest on me for buying the wrong tool in the first place)! Looks like a gas torch/solder iron might be a useful additional the toolkit for repairs on the road when 240v isn't available.
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