Electronics Forum | Sat Aug 26 12:26:57 EDT 2000 | Ramon I Garcia C
Hi friends: I have a problem in the process of one PCB, I have a lot of insuficients of solder in top of the board, this pcb already was working good, but sudenly began there isn't flow thru hole, I ran the profile and it was ok, if I inmerse i
Electronics Forum | Sun Aug 27 11:37:28 EDT 2000 | RJ
If you have another container of flux that is a different batch try that. Dont forget to clear lines of old flux. check spray pattern width. The activators needed may be dead in flux.Since it is sudden my question would be what just changed?
Electronics Forum | Mon Aug 28 10:26:56 EDT 2000 | Travis Slaughter
Being its sudden and only 1 product I would suspect the PCB particularly the barrels in the plated through holes being contaminated.
Electronics Forum | Wed Aug 30 09:56:37 EDT 2000 | NLykus
Hi Ramon, We have had this problem before on our Seho Wave Solder Machine. We are currently using a spray fluxer as well. By imersing the PCB into the flux you stated you are getting good results. What you need to do is check your spray patter
Electronics Forum | Wed Aug 30 23:45:28 EDT 2000 | Ramon I Garcia C
Hi friends; Steve I'm using flux Kester 959, my top temperature is 187 celcius degrees, my e-mail is ramigary@smtnet.com, Travis I'll check the pcb for contamination, but how may I clean the pcb? may I use alcohol? Nance I cleaned the pipes of the
Electronics Forum | Thu Aug 31 14:27:23 EDT 2000 | Travis Slaughter
How to clean a contaminated board would depend on what it�s contaminated by, alcohol may be just the thing. If there is bare copper that has corroded that could be more of a problem, or maybe not if its due to poor tinning by the board house you coul
Electronics Forum | Mon Aug 28 15:34:19 EDT 2000 | Steve Harshbarger
Hello Ramon, This is a very common problem that usually can be overcome. Can you tell me the flux type you are using (manufacturer, and flux number)? Has your board vendor, or type of PCB's changed (are they entec coated - bare copper)? What is t
Electronics Forum | Wed May 27 11:54:29 EDT 2009 | allwave
Armando, Make sure chip wave is pumping evenly across. These TD machines require a lot of maintenance (deep cleaning)to ensure all the holes on nozzle are open... My two cents, George
Electronics Forum | Fri May 29 02:08:08 EDT 2009 | cobar
Check that you are getting an even spray pattern from the fluxer.Check that the chip wave nozzle is clean and if possible feed the PCB in to the wavesolder unit at 90 � or 180�.
Electronics Forum | Tue May 26 06:56:40 EDT 2009 | xinxi
Hi! From your post, it seem like the wave did not really touch the component. You probably need to get the both wave height correct and that it hits the component.It is normal for solder to come through the PCB when using chip wave. The through-hole
