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February 2003

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Subject:
Re: Adding liquid flux when hand soldering
From:
Charles Caswell <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 26 Feb 2003 15:54:26 -0600
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text/plain (38 lines) 
I usually add flux except for the hand clean stuff. We only use RMA right now though. A few reasons are: Better wetting.
Actually easier to clean in many cases. The volailes boil out of the flux core leaving a harder rosin.
Variations in thermal mass at different locations. One joint takes 1 sec, the next takes 2-3. The liquid flux keeps the easy ones from getting overheated, lets me get a good average working time. This is especially true of connectors. Grounds take longer than signals
Charles Caswell

-----Original Message-----
From: Phil Nutting [mailto:[log in to unmask]]
Sent: Wednesday, February 26, 2003 3:40 PM
To: [log in to unmask]
Subject: [TN] Adding liquid flux when hand soldering


Is it a common practice to add liquid flux when soldering by hand or do you rely on the flux core of the solder?  My 30+ years says add the liquid flux for the best solder joint, but that was back when I was involved with rocket science.

Phil Nutting

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