Testing solder joints
Mar 26, 2009 at 4:13 PM Post #31 of 32
Quote:

Originally Posted by kuroguy /img/forum/go_quote.gif
not sure if this was mentioned yet...
NEVER use the tip of the iron to melt the solder. That will pretty much guarantee a cold joint.



not sure I agree.

suppose I start off melting by having the solder touch the iron, but if I have flux, it will flow into the hole and if I keep the iron there, the temp rises to the right level.

there's an element of timing involved more than just initial contact methods
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pausing and letting it flow sometimes is key. and that pause allows the temp to get high enough to flow and let things settle.
 
Mar 26, 2009 at 5:04 PM Post #32 of 32
OK. I'll give you that. But for someone just learning to solder, I think my method is easier to get right as it ensures everything is hot enough to create a good joint. Your method takes a certain amount of experience to know when you've got it all hot enough, and it is very easy (if you don't know what to look for) to get a blob of solder that looks like it flowed properly when in fact you have a cold joint.

I'll admit I do use both methods at different times, but I've been soldering things for over 35 years.
 

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