Electronics Forum | Wed Aug 16 13:31:30 EDT 2006 | a_laser
You can stop cleaning after a job when there is no more paste in the apertures. Under wiping should be done with a quality cloth and should leave no paste on the underside of the stencil (assures good contact on the next print and reduces chances of
Electronics Forum | Wed Jun 14 21:49:42 EDT 2006 | davef
Bryan: * Most of our stencils are made from stainless steel that is held by a aluminum frame, attached with epoxy with a fiber glass intermediary between the frame and the stencil. * We use stencils to print either glue [thermoset epoxy] or solder pa
Electronics Forum | Tue Apr 13 08:07:53 EDT 2004 | Frank
Hey, What implications are there when cleaning a stencil of conductive adhesives rather than solder paste? I'm looking to change over to this medium but i'm stuggling to find any journals or data based around the implications of this transision, Ch
Electronics Forum | Tue May 30 16:32:17 EDT 2006 | slthomas
Your aqueous (spray) and ultrasonic methods refer to cleaning of the stencil for storage between jobs. All others would be most common as in-process cleaning methods, whether with cloth or paper products.
Electronics Forum | Fri Jun 16 07:57:59 EDT 2006 | Bryan
Thanks to all for clarification - I now appreciate the different methodology between "in-line" & "end of run" but am still unclear as to advantages / disadvantages of paper versus non-woven material ie stencil rolls for in-line cleaning. Any info wo
Electronics Forum | Thu May 12 14:03:38 EDT 2016 | chemers
Does anyone have an equipment recommendation for stencil cleaner brand/type that they would recommend for no-clean pastes? I have used ultrasonic cleaners in the past with aqueous pastes, but I don't want to buy something that really won't work for u
Electronics Forum | Wed Jun 14 21:56:07 EDT 2006 | davef
Stencils should be cleaned frequently enough to ensure total removal of any bottom side residues, but not so infrequently as to allow the same residues to dry or cake on, making their removal much more difficult. Look here: http://www.smtnet.com//fo
Electronics Forum | Thu Jun 15 09:58:12 EDT 2006 | slthomas
Just to add to what dave said, the only limitation to how frequently you clean is the cost of the cleaning medium. You can wipe every board if you want to, but you'll go through material accordingly. If you're printing 16mil pitch or smaller, cleani
Electronics Forum | Fri Jun 16 08:20:36 EDT 2006 | davef
First, isn't paper a nonwoven? Maybe we start splitting hairs on whether paper is a 'fabric' or not, but what's the difference? Second, paper versus nonwoven fabric boils down to performance and cost. We know 'paper', but it could be 'fabric' and
Electronics Forum | Tue May 30 10:55:57 EDT 2006 | bryanhewson
I am a lay person researching the application of non-woven material in stencil rolls either using branded material or non-branded alternatives for DEK, MPM Panasonic machines in SMT environments. I have read a number of articles referring to aqueous
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