TECHNET Archives

May 2014

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
"David D. Hillman" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
Date:
Fri, 2 May 2014 18:23:58 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (61 lines)
Hi Jim - let me add one more bit of information to the good stuff you have
already received from TechNet. The use of nitrogen allows you to use a
wider range of flux formulation choices. Since nitrogen reduces oxidation
by providing an inert reflow environment, your flux doesn't have to work
as hard and it can also allow a flux residue that is easier to remove if
you do pwa cleaning. Nitrogen isn't necessary but it does allow for more
material options in your soldering process.

Dave Hillman
Rockwell Collins
[log in to unmask]




From:   Jim West <[log in to unmask]>
To:     <[log in to unmask]>
Date:   05/02/2014 12:51 PM
Subject:        [TN] Use of Nitrogen (reflow ovens)
Sent by:        TechNet <[log in to unmask]>



Good Friday all,

Wondering how many out there, using both lead and lead-free solder, are
using nitrogen with your reflow process?  At a previous factory, we did
not use nitrogen as part of our reflow process and where I'm working
today, we use Nitrogen on all our lines.  I had success without nitrogen
and we are having success with nitrogen.  At the APEX show, I spoke with
at least one reflow oven manufacture about their oven and what they feel
about the use of nitrogen and they pretty much said they are selling less
ovens with nitrogen.  To the point of 90%+ of their ovens are sold without
the nitrogen option.  As most know, nitrogen is very expensive and I would
like to justify not using nitrogen in the future, but I have an uphill
climb due to my parent company suggesting we use nitrogen based on a
policy created over 7 years ago.  Based on our product mix, I'm of the
opinion we don't need nitrogen.

What are your thoughts on using nitrogen with the reflow process?

Has anyone gone through the process of eliminating the use of nitrogen and
had success afterwards?

Thanks,
Jim


______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask]
______________________________________________________________________




______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask]
______________________________________________________________________

ATOM RSS1 RSS2