Electronics Forum: stain on pcb from wave soldering (Page 1 of 53)

Blowholes during wave soldering

Electronics Forum | Tue Sep 11 15:08:11 EDT 2007 | shrek

KRIKIES! If that wasn't a sales pitch, I don't know whut was, me lad. Optimizer is good for DoE's and process characterization, but no substitute for the artform that is wave soldering. When me lads here in Purchasing get PCB's from all over the w

Stick on robber/thief pads for wave soldering

Electronics Forum | Mon Jan 19 09:49:20 EST 2004 | davef

Not as such. Choices are: 1 Cut and epoxy some board foil from your board fabricator. 2 Sacrifice part a pad repair kits from the likes of: * Engineering Lab 905-785-1982 * Circuit Technology Center 978-374-5000 * General assembly suppliers catalog

Stick on robber/thief pads for wave soldering

Electronics Forum | Mon Jan 19 20:07:07 EST 2004 | russ

I once used some foil tape from 3M with hightemp adhesive. It actually sorta worked. Russ

contamination problem on boards after wave soldering

Electronics Forum | Wed Jun 17 16:08:37 EDT 1998 | upinder singh

We are facing a problem of high contamination on boards after wave soldering. We want the contamination to be under 24 ugm/inch square. We are using a no clean flux with the spray fluxer unit of wave soldering. The contamination is higher on the end

Stain on PCB from reflow oven

Electronics Forum | Fri Apr 16 11:51:26 EDT 2010 | shawnvike

Looks like a simple variance in the solder mask discoloring. Shawn

Stain on PCB from reflow oven

Electronics Forum | Fri Apr 16 13:22:48 EDT 2010 | stepheniii

Have you tried running a few bare boards through the oven? If there is no flux on them and you still get the "stains" then I think you can eliminate the flux as the cuprit. And I've been told that white is the second most difficult solder mask colou

Stain on PCB from reflow oven

Electronics Forum | Fri Apr 16 23:33:41 EDT 2010 | isd_jwendell

If you are trying for a nice reflective surface you will get a white with better spectral reflection if you paint with an appropriate formula after the board is soldered.

PCB bows after wave soldering

Electronics Forum | Fri Jun 25 22:30:47 EDT 2010 | smthexi

i think you need to use a PCB central support. do you know that part ? it specializes in preventing PCB board from bowing during wave soldering.

Solder beads and wave soldering

Electronics Forum | Mon Jul 10 09:25:47 EDT 2006 | nodlac

Here is a nugget from the Data Sheet... Wave Soldering: Excess moisture on the PCB during soldering may lead to random solder balling and poor wetting of some solder joints. IT IS IMPORTANT that the flux solvent carrier (water) is fully evaporated a

PCB bows after wave soldering

Electronics Forum | Fri Jun 18 17:36:10 EDT 2010 | sid

Good afternoon all, I have been trying to find a solution to a defect I just noticed. After stencil printing and smt part placement on the secondary side of my boards, I run them through a wave soldering system. All my components got soldered perfe

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