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July 2003

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Subject:
Re: Wave soldering / Closed open N- Tunnel systems
From:
David Fish <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 2 Jul 2003 11:16:26 -0400
Content-Type:
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text/plain (53 lines) 
Siggi

An oxygen concentration of 22 to 26 ppm improves wetting and lowers residue.
Contact: Andy Mackie [[log in to unmask]] at Praxair.

Dave Fish
----- Original Message -----
From: "Zweigart, Siegmund" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, July 02, 2003 10:54 AM
Subject: [TN] Wave soldering / Closed open N- Tunnel systems


> Hello all
>
> We are looking about the differences in lead free wave soldering in regard
> to different wave systems.
> Do somebody know of any experiments regarding different ppm levels if
closed
> (tunnel system) and open N- systems are compared?
> Are ther any differences in Solder Quality in regard to differnt O- levels
> in N?
>
> Thanks for your answers
>
> Siggi
>
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