Teo,

When I started with my present company, they had a vibrator installed on the
rail of our oven. As you noted, their intent was to compensate for minor
skewing caused in our case by an aging Dynapert 318.  I immediately
uninstalled it. My take on this is that while you may correct some skewing,
you are probably disturbing the solder as it attempts to cool.  A better
solution is to correct the placement issues at the source, i.e. the
pick-and-place equipment.


Rick Thompson
Ventura Electronics Assembly
2665A Park Center Dr.
Simi Valley, CA 93065

+1 (805) 584-9858 voice
+1 (805) 584-1529 fax
[log in to unmask]


-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Teo Tijerina
Sent: Friday, May 21, 1999 8:09 AM
To: [log in to unmask]
Subject: [TN] vibrating mechanism on reflow oven rail


One of our supervisors attached a vibrating mechanism to the rail on the
reflow
oven.  This helped align some skewed and shifted components.   I have never
heard of this before.  It appears to work, but there are some issues with
finding optimal frequencies, etc.

Is anyone using any technology similar to this?

-Teo Tijerina
Conexant Systems, Inc
El Paso, TX 79936
915.780.5552

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following
text in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet
################################################################
Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section
for additional information.
For technical support contact Hugo Scaramuzza at [log in to unmask] or
847-509-9700 ext.312
################################################################