Electronics Forum | Sat Mar 20 08:37:06 EST 2004 | Primus
The BioAct SC-10 wipes work great, but I've noticed some contamination in our solder joints after I began using them on the stencils. After cleaning the paste off the stencil with the wipes, I started spraying the stencil down with isoproponal and bl
Electronics Forum | Wed Jan 23 12:35:24 EST 2008 | bobpan
Here is a few things to try.... 1. Spin the z-shaft with your fingers and make sure it is smooth and easy to turn. 2. Check your handling in your profile for the part that the software is locking up on.......You cannot go any slower than 40% or this
Electronics Forum | Sat Feb 13 07:57:42 EST 1999 | Kelly
| I am fairly new to the SMT game and I am getting conflicting answers to the following. Maybe someone can help me! When printing, one person is telling me that the stencil should be wiped completely clean of all paste because the quality of the
Electronics Forum | Fri Apr 24 13:45:55 EDT 1998 | Scott Davies
| I use SMART WIPE for stencil cleaning but it cost too much. | Did anyone know any product that cost cheaper? | Thanks-princeton S. We use "SMT Stencil Cleaner" from JNJ Industries. It works great with paste but not 100% with epoxy. It costs us $2
Electronics Forum | Tue Mar 08 09:56:05 EST 2005 | caldon
Tim- You have two separate issues 1) Stencils and 2) wave. Stencils you can purchase a ultrasonic system that will remove the paste automatically or you can use stencil wipes to remove it manually. I would refrain from using towels and IPA as it dilu
Electronics Forum | Tue Mar 22 11:57:07 EDT 2011 | jercole
Make sure the paper is advancing correctly on > your stencil wiper. I have seen this cause major > issues. If the paper hangs up, it will smear > paste across the bottom of the stencil every time > it wipes. We are manually cleaning the stenci
Electronics Forum | Mon Jan 24 11:17:30 EST 2022 | jineshjpr
Hi, Mainly concentrate on 2 subjects: 1- Cleaning of Misprinted PCB (always use best neutraliser to remove paste from PCB), 2- Underneath Stencil Cleaning - Use good stencil cleaner (rather than IPA) to wipe your stencil. Because both the above said
Electronics Forum | Fri Dec 15 10:58:32 EST 2006 | pms
Yes we see this also....... It is what they call "cold welding" of the solder paste to the blades...... The solder spheres actually "weld" together...... It leaves streaks on the stencil, not a clean wipe of the stencil....... We have never found
Electronics Forum | Tue May 25 10:49:34 EDT 1999 | Deon Nungaray
.025" you should wipe under stencil surface after every 2 or 3 print cycles with a lint free cloth or lint free tissue. When performing this operation you can also lightly soak cloth or wipe in alcohol. Regards, Deon Nungaray SMT MFG Process Engin
Electronics Forum | Thu Oct 23 09:45:05 EDT 2014 | rgduval
Generally, excess solder balls found randomly around the board/parts points to either a dirty stencil during printing, or a stencil/board that is shifting during printing (smearing the paste a little, and causing a dirty stencil. If the apertures ar
