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Thread: Soldering question

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Old 04-25-2013, 08:46 PM   #1
Rock Crawler
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Default Soldering question

Has anyone ever had a issue with solder not heating onto the wire you are trying to solder? I'm using a flux rosin wire, it just heats up and falls off it, I've never had this issue before, could the wire I'm trying to solder have something to do with it?
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Old 04-26-2013, 12:01 AM   #2
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Default Re: Soldering question

if the wire is old it might be corroded.
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Old 04-27-2013, 05:07 PM   #3
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Default Re: Soldering question

Make sure both surfaces are good and clean. If there is any crud, oils or corrosion on there it can cause it not to stick.
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Old 04-27-2013, 07:55 PM   #4
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Default Re: Soldering question

Ditto on clean. If it has any oil on it you won't get the solder to stick. Try cleaning the wire with some motor cleaner sprayed on a paper towel. Spray the paper towel, then pinch the wire in it and clean it. Make sure the motor cleaner has evaporated and dried before trying to solder again.
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Old 05-06-2013, 04:15 AM   #5
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Default Re: Soldering question

is the wire thicker than what you soldered before? sounds like in sufficient heat to me. if this is the case you have 2 options; wait longer or get a hotter iron.
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Old 05-06-2013, 04:20 AM   #6
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Default Re: Soldering question

Thanks guys, looks like it was the wire, dunno how much the wire was crap, bought some new wire and the solder worked fine
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Old 05-14-2013, 10:04 PM   #7
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Default Re: Soldering question

Even with flux core wire I still use regular flux on all my soldering jobs. It's like 5 extra seconds, but never any issues with getting a joint to turn out good.
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Old 05-14-2013, 10:22 PM   #8
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Default Re: Soldering question

Yup, flux is cheap. Works too.
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