Subject: | |
From: | |
Reply To: | |
Date: | Thu, 27 Aug 2009 15:57:06 -0400 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Two thoughts from the American Welding Society: Soldering Handbook.
The flux activation temperature is often overlooked vis-à-vis the solder
alloy melting temperature when developing a soldering process. For example,
low melting temperature solders . . . may experience poor solderability when
used with rosin-based fluxes because the process temperatures are actually
below the activation temperature of the flux.
The handbook does not recommend, in general prolonged hold times for a
variety of reasons.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Gumpert, Ben
Sent: Thursday, August 27, 2009 2:34 PM
To: [log in to unmask]
Subject: [TN] Soldering tin-bismuth alloys
Technetters,
Anyone have experience using tin-bismuth solder?
Should the dwell time at TAL+20° in my reflow profile be longer (compared to
a eutectic SnPb profile) because of the lower peak temperature?
How long should it be for soldering to nickel?
Thanks,
Ben
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
-----------------------------------------------------
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------
|
|
|