TECHNET Archives

February 2008

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:
Steve Gregory <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Steve Gregory <[log in to unmask]>
Date:
Wed, 20 Feb 2008 08:51:05 -0600
Content-Type:
text/plain
Parts/Attachments:
text/plain (34 lines)
Mornin' All!
 
If the solder in a wave solder pot gets a little hot, it doesn't really
degrade it does it?
 
Situation is; I'm emptying three solder pots, one 63/37 pot, one SN96
pot, and one HMP pot, the way the pots are designed is that the pot
thermocouples are located up towards the top of the pot. So as I lower
the level of the solder in the pot, at some point the thermocouples will
not be in direct contact with the solder and thus not be giving me the
actual solder temperature.
 
I've been cycling the heater power off when it looks like the solder is
getting pretty hot (it starts getting getting this golden sheen to it),
along with disconnecting the heaters when they start getting exposed as
the solder level goes down.
 
I've always emptied pots this way, and just started wondering if the
solder degrades at all if you heat it up beyond the liquidous
temperature. I know it makes a little more dross as the temperature
rises...
 
Steve 

---------------------------------------------------
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
-----------------------------------------------------

ATOM RSS1 RSS2