Try to make the connector holes "press fit" if they are going through a
wave solder process.
If the holes are oversized, the part will lift from the force to the
wave...
Regards
Ken
__________________________________________
Kenneth Wood
Saturn PCB Design, Inc.
Phone: 407-275-3220
Email: [log in to unmask]
Internet: http://www.saturnpcb.com
_________________________________________
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Thursday, November 08, 2007 8:26 AM
To: [log in to unmask]
Subject: Re: [TN] Request for posting on your TechNet wall
Good Morning Blair and Everyone!
I've posted your pictures. They're at:
http://stevezeva.homestead.com/files/Term_Board_1.jpg
http://stevezeva.homestead.com/files/Term_Board_2.jpg
http://stevezeva.homestead.com/files/Term_Board_3.jpg
Yes, I have seen something similar to this. Especially with the long
terminal blocks. But in my case, both ends would warp upward like a
bannana.
What we would do was to hand solder a pin at each end, and one in the
middle, then use a liquid mask (like Wondermask P)to cover them prior to
wave. I know, you don't want to have to put in the extra labor to do
something like this, but it solved the issue for us.
Steve Gregory
-----Original Message-----
From: Hogg, Blair K. [mailto:[log in to unmask]]
Sent: Wednesday, November 07, 2007 3:34 PM
To: Steve Gregory
Subject: Request for posting on your TechNet wall
<<Term Board 1.jpg>> St <<Term Board 3.jpg>> ev <<Term Board 2.jpg>> e,
Can you post these three pictures on your TechNet page?
We have seen this problem on some of our termination boards. The
terminal blocks lift off the board during wave solder. I haven't watched
them go thru the wave, so I can't tell if it is happening when it hits
the wave or during preheat.
The production supervisor told me the boards went thru with the end with
the three terminal connector first.
Has anyone else seen this and do you have suggestions on how to keep it
from happening?
Thanks,
Blair
*******************************************************************
This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom they are
addressed. If you have received this email in error please notify the
system manager.
This footnote also confirms that this email message has been swept for
the presence of computer viruses.
www.Hubbell.com - Hubbell Incorporated
---------------------------------------------------
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
-----------------------------------------------------
--------------------------------------------------------------------------------
This email and any files transmitted with it are intended only for the use of
the individual or entity to which it is addressed and may contain information
that is proprietary, confidential and exempt from disclosure under applicable
law. If the reader of this message is not the intended recipient, or the
employee or agent responsible for delivering the message to the intended
recipient, you are hereby notified that any dissemination, distribution or
copying of this communication is strictly prohibited. If you have received this
communication in error, please delete it and notify us immediately.
--------------------------------------------------------------------------------
---------------------------------------------------
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
-----------------------------------------------------
|
