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Max The Magnificent
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Re: Soldering iron temperature
Max The Magnificent   9/15/2014 12:53:07 PM
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@Steve: Sounds like you're practicing dance steps


If there's one thing you don't want to see, it's me dancing LOL

Max The Magnificent
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Re: Soldering iron temperature
Max The Magnificent   9/15/2014 10:03:18 AM
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@Betajet: Three shall be the number thou shalt count, and the number of the counting shall be three. Four shalt thou not count, neither count thou two, excepting that thou then proceed to three. Five is right out.

That was such a classic!

zeeglen
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Re: Soldering iron temperature
zeeglen   9/15/2014 9:37:02 AM
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@Alan ...taking maybe 1/4 second to solder a grainy blob to tack a component into place with fuzzy gray ballbearings.

When one's daily wage is based upon the total number of joints soldered, there is little incentive to take the time to do it right.

AlanWinstanley
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Re: Soldering iron temperature
AlanWinstanley   9/15/2014 7:14:18 AM
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The melting point of traditional tin-lead solder is about 190°C/ 374°F but lead-free solder is higher at 201-227°C 393-440°F. The soldering iron is however set so the solder melts instantly on the tip. I use 330-350°C/ 626-662°F or maybe a little higher for trickier stuff.

You might try eutectic solder 63/37 tin/lead which changes instantly from solid to liquid, can be good for hand soldering.

As for the time needed, it depends how much metal is involved. A small thru-hole solder joint might take a second or so depending. If you don't snip wires off first, it takes slightly longer to get the heat flow. I've seen some video footage of foreign production lines, girls taking maybe 1/4 second to solder a grainy blob to tack a component into place with fuzzy gray ballbearings. Not enough heat flow, poor coverage, unreliable and a possible fire hazard if at mains voltage (arcing, heating).

Alan W

 

zeeglen
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Re: This is amazing
zeeglen   9/12/2014 9:11:14 PM
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@ Steve Manley  It's pleasing to knowI'm not the only one that finds a hotter tip actually reduces soldering time.

Agree. Get the work just hot enough to flow the solder onto both pieces, then get the iron off the joint immediately.


zeeglen
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Re: This is amazing
zeeglen   9/12/2014 9:01:35 PM
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@ David "In a pinch..."  Was that a pun?? :-)

A little one, not as noteworthy as "expanding steam" or "Freudian slip of a girl" by some better punsters in this group :^}

David Ashton
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Re: This is amazing
David Ashton   9/12/2014 7:55:39 PM
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@Zeeglen... "In a pinch..."  Was that a pun?? :-)

I've used the rubber band trick more for holding things (connectors to be soldered, etc) than anything else.   It's a handy trick.

betajet
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Re: Soldering iron temperature
betajet   9/12/2014 7:25:11 PM
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To me, it sounds like the Holy Hand Grenade of Antioch:
Three shall be the number thou shalt count, and the number of the counting shall be three. Four shalt thou not count, neither count thou two, excepting that thou then proceed to three. Five is right out.

[en.wikipedia.org/wiki/Rabbit_of_Caerbannog#Holy_Hand_Grenade_of_Antioch]

zeeglen
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Re: This is amazing
zeeglen   9/12/2014 7:25:07 PM
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@ David You can also use medical artery forceps

In a pinch you can wrap a rubber band around the handles of small needle-nose pliers to jury-rig a hemostat.  This can also serve as a "3rd hand".

Steve Manley
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Re: Possible explanation
Steve Manley   9/12/2014 7:05:04 PM
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@David: Like Max not getting rich with his screw-block proto-shields, you'll never get rich writing for EETimes either.   But is it fun!

When a hobby becomes paid for it ceases to be a hobby? but the extra cash would be handy though.

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