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| Reply To: | TechNet E-Mail Forum. |
| Date: | Thu, 7 Oct 1999 08:50:15 -0400 |
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We use waterbased flux in wave soldering, but have found that this doesn't work
very well in hand soldering, because of the long time to allow the solvent
(water) to vaporate. You may be better off using an alcohol based repair/hand
soldering flux. Just make sure you use an O/A based or it will look ugly.
[log in to unmask] on 10/07/99 08:37:41 AM
Please respond to [log in to unmask]; Please respond to
[log in to unmask]
To: [log in to unmask]
cc: (bcc: Jason Smith/Lex/Lexmark)
Subject: Re: [TN] FW: solder balls/splashes
Miguel
Solder balls/splashes??!!! We're using a VOC free water
based flux for wavesoldering and Kester 951 for hand soldering. We've had
instances where repair operators use the water based flux for repair, I
know, I know, molten solder and water don't mix well. To continue, you may
want to try baking the boards to remove moisture trapped inside and/or limit
the amount of flux being used by repair people, flux pens work well.
Derek Humble
S.C. Process Engineering
Brock Telecom Ltd.
Tel. :(613) 498-3856 ext. 2428
Fax :(613) 498-3645
E-mail: [log in to unmask]
-----Original Message-----
From: Miguel Vallejo
[SMTP:[log in to unmask]]
Sent: October 6, 1999 10:46 PM
To: [log in to unmask]
Subject: [TN] FW: solder
balls/splashes
Are there any assembly audience out there besides
me?
> ----------
> From: Miguel Vallejo
> Sent: Monday, October 04, 1999 6:13 PM
> To: [log in to unmask]
> Subject: solder balls/splashes
>
> Hi,
> Is anyone out there having problems with solder
balls and splashes in
> your hand soldering process using no clean
solder/flux?
> We've been using Kester SN63PB37 alloy solder,
QQ-S-571-F-WLRP-1, and
> 961 flux, in our application and found that it
produces solder
> splashes and solder balls.
> Is there a way of preventing this condition?
>
>
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