Electronics Forum | Thu Feb 16 11:23:04 EST 2006 | fredc
I saw WD-40 recomended as a lubricant for feeders. I might use it for a quick solvent rinse that I was planning to blow off all traces. Many years ago I put away some micrometers that had been sprayed with WD-40 after a year or so the solvents in the
Electronics Forum | Fri Mar 03 07:40:06 EST 2006 | davef
The most effective cleaning of high solids RMA has been with a good saponifier (5-7%) [eg, Kyzen Aquanox, Lonox formulations, Envirosense Envirogold, etc ] in deionized water, 150F, with 2-3 DI water rinses. Dull solder connections when you do spot
Electronics Forum | Fri Mar 03 13:51:17 EST 2006 | Chunks
We've looked at our stencil under magnification after hand cleaning. There is some paste left behind. Machine washing removes all of the paste. Your best bet is to clean like normal, then look at the aps under magnification. Adjust accordingly (a
Electronics Forum | Tue May 30 17:06:13 EDT 2006 | Board House
Hi Steve, I would say that 98 % of score shops do them dry, When the product gets back to the board house they would run the panel through a rinse dryer to get the score dust off of the Panel, Most Score machines have Vacuums built into the cutter h
Electronics Forum | Thu Aug 10 07:04:41 EDT 2006 | CL
Good Morning SWAG, We have had similar problems with our Heller 1800 EXL's when the chains would build up oil and debris. The only way we could get them clean was to put them into a self cleaning oven and carbonize the residues. We then rinsed them
Electronics Forum | Thu Sep 14 14:18:13 EDT 2006 | Kevin W. Parker
We have begun using a PCB with Organic Surface Protectant. We normally run boards with non orgainic protectant. We can wash these boards with our ultrasonic cleaner using Zestron SC202 and a separate Hot/cold rinse system with an air knife. This r
Electronics Forum | Wed Oct 04 10:18:51 EDT 2006 | greg york
Now seen the Blow Holes and shallow inverted and non wetting problem an aweful lot over here. Over came the Blow Holes and shallow inverted joints by washing the bare PCB with hot Saponifier then rinse and dry = problem dissapears. Think most PCB ven
Electronics Forum | Tue Nov 07 09:25:36 EST 2006 | pjc
Can be done with AquaStorm 200, with some mods. I worked on a project a few years ago for a military company that needed to clean no-clean solderpaste residues from under LCC devices, we're talking like 2mil standoff. We ended up using a Zestron clea
Electronics Forum | Thu May 24 22:46:10 EDT 2007 | colormaker
The waste water is filtered then sent to city sewer. When we first started we had inspections and then they said our volume was so low and did not require continued testing. We wash 20-40 boards a month. Small 3x4 inch boards. If we hand rinse the b
Electronics Forum | Tue May 29 15:10:30 EDT 2007 | realchunks
Hi Jerry, Sounds like the white stuff is flux. I doubt if 4 pcb mfgers could be undercuring all at once. Good point though. Since you changed washers and now have the problem - it's your new washer. Can you bring back the old one to make sure?
.gif)
.gif)
