Electronics Forum | Sun Nov 05 22:55:29 EST 2006 | KEN
Is it possible something is wrong with your solder paste?
Electronics Forum | Fri Oct 27 09:07:33 EDT 2006 | kingfish
I have an AP25 HiE, first time using metal blades. I have found that the paste is not releasing from the metal blades whether it is fresh or old. It is intermittent at times. Any suggestions? David
Electronics Forum | Mon Oct 30 10:19:08 EST 2006 | Thanh Nguyen
do not dispense too much solder paste in the stencil. Keep paste about haft of the blade hieght.I think it will help.
Electronics Forum | Mon Oct 30 11:01:32 EST 2006 | nodlac
David- We found success with Permalex blades from Transition Automation. http://www.transitionautomation.com/squeegee.html Not that this solves yer problem....
Electronics Forum | Wed Nov 01 12:31:38 EST 2006 | jdumont
We also use the Permalex blades with good success. We try to keep around a 5/8" bead on the stencil to help with release.
Electronics Forum | Fri Oct 27 20:27:48 EDT 2006 | davef
Search the fine SMTnet Archives for background, for instance: http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=5473
Electronics Forum | Thu Sep 03 07:16:39 EDT 2009 | rocko
When you increase the blade length you have to use much solder paste. As a result, we will dry-out extra quantity of solder paste. If it's not a problem then you can use longer blades, just change/adjust the process parameters.
Electronics Forum | Thu Oct 23 08:13:44 EDT 2003 | davef
The SEMA listing [ http://www.smema.org/smema5.pdf ] says: * D CUT SQUEEGEE: A single diamond edge squeegee which is shaped like an upside down house and made of polyurethane. * FOUR-SIDED DIAMOND EDGE SQUEEGEE: A polyurethane 3/8 x 3/8 four sided, f
Electronics Forum | Thu Nov 03 11:31:51 EDT 2022 | proceng1
You described cleaning the spindles and filters, but did you clean the nozzles? Perhaps you got some paste on the nozzle. Also, did you perform the vacuum and blow off testing? Make sure your solenoids are working properly. Is it all 6 heads that
Electronics Forum | Tue Jan 16 10:19:36 EST 2007 | slthomas
Then how do we explain the poor printing performance (appears to be rheology based, paste thickening/drying, poor aperture fill, sticking to the blades, etc.) of paste that has exceeded it's shelf life? You know, the stuff that no amount of stirring
