stencil cleaning

"stencil cleaning" search results in the Electronics Forums



9777 result s found for "stencil cleaning" in the Electronics Forums

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Flux residue cleaning procedure

Nov 2, 2006 | Thank you very much for your reply, we'll try to perform your advice. I'll feedback you soon for th

Cleaning Paste from 2nd Side Print

Oct 31, 2006 | We've just started running a lot of double sided assemblies. What is the preferred method for remov

Flux residue cleaning procedure

Oct 30, 2006 | thanks for your inputs,but what i meant was that a connector component beside the BGA for repair has

up2000 HiE hates me

Oct 30, 2006 | If there is a tactile sensor on this machine, make sure the switch works properly (view input test screen while pushing plunger in and out) and clean/oil the plunger.

Conformal Coat Spray Equipment

Oct 30, 2006 | The USI Prism, http://www.ultraspray.com , machine has self-cleaning function. When you contact them ask about this option.

Dross removal

Oct 27, 2006 | I use adipic acid to clean our Ersa selective solder machine nozzles. Makes a huge difference and is quick and easy.

supplier

Oct 16, 2006 | Hi Larry, Typing in all caps is consider yelling in forums. As for your stones, have you tried soaking the old ones in iso to clean them? This should make them last a long time. You may be paing a higher price for stones since they a no longer in great demand.

How do you clean OSP PCB's without washing it off?

Sep 14, 2006 | Is it your normal process to wash all your bare boards or is this in response to something abnormal?

yellow residue

Aug 22, 2006 | Using no-clean flux going thru wave when comes out there is a bit of flux residue left on board. If wiped the residue shows a yellowish tint. Any ideas what this means how to get rid of it?

Low volume quality PCBs (how to)

Aug 15, 2006 | Bake your solder mask and then solder coat. If you are going to put an immersion finish like Osp, gold, tin or silver you would have to do a Micro etch to clean the copper prior to placing the surface finish. Regards, Board House

SMT LEAD FREE PRINTING

Aug 3, 2006 | Is your squeegee cleaning process adequate to guarantee no transfer of paste residue between jobs? Personally I wouldn't risk it, but then again it's easy for me to say since we don't do lead free.

SMT LEAD FREE PRINTING

Aug 3, 2006 | Curious if anyone knows... When switching back and forth from Leaded paster to Lead free if cleaned with alcohol can the same squeegees be used? If so could anyone direct me to any links that would back this up. Thanks, Simon SMT Tech, Edge Tech Industries

Dross Eliminator

Jul 31, 2006 | Hi all, I wonder if some of you have experience in use of dross eliminator as a Kester 5744 or maybe with MS2 Molten Solder Sulfactant. I would like to know if they give good results in process and pot cleaning. Regards, Betsy

Solder on gold finger

Jul 18, 2006 | Clean up!, check all conveyors for paste, the printer, oven. If you are splattering in the oven than you need a better profile or better paste, one of the two, maybe both. Hope was helpful Russ

TopazXi-FNC-Assembleon

Jul 8, 2006 | Have you had you head splines inspected for dirt or contamination which would cause heads to stick? Make sure the your Splines are not bent; that they are clean, and last that your nozzle station is taught correctly. How often do you service you equipment?

SIR Testing

Jul 4, 2006 | I had a couple of reps in from Indium a few weeks back, and they were promoting a flux for rework that was designed to have low SIR, No clean. Havent tried it yet. The product is Flux NC 771, might solve your problem? Regards Slaine

Justification on buying machine (Reflow/Wave)

Jun 19, 2006 | Because some lead free solders are very corrosive to anything but titanium. Also "clean it very well" is kind of a crap shoot, isn't it? Did you get your solder tested for impurities and lead %age after you did the swap?

Removal of SMT Device Markings

Jun 13, 2006 | Anyone know of a clean effective way to remove silkscreening from SMT components? We are currently using a laser source removal process and wish to consider alternatives.

No clean with higher SIR values

Jun 12, 2006 | Customer requires 10 E 13, then humiseal applied to take air out of the equation. This is primarily

No clean with higher SIR values

Jun 12, 2006 | What's wrong with 10E10? 100 Mohms (1E8) is a pretty standard lower limit so you're a few orders of

BGA Underfill Rework

Jun 7, 2006 | This is true but even the so called reworkable underfill takes a lot of effort. We use a loctite reworkable that requires heat to soften the underfill. Once the component is removed we use acetone and a swab to scrub the pcb clean. This can be very time consuming.

cleaning wave solder pallets

May 16, 2006 | Check the fine SMTnet Archives. For instance:

MB Tech NC25

May 16, 2006 | Is anyone of you folks familiar with NC25 from MB Tech. Boards cleaning equipment. Off-line one. How reliable is it? Any problems noticed so far? Thanks! adse

Lead Free and ICT

May 10, 2006 | I agree! I am using a SAC305 no clean from Alpha. I have noticed that even hand probing with volt meter leads requires me to press very hard on the pads to bust through the flux residue.

Flux clogging up exhaust ducts

May 9, 2006 | It does specify when to clean. But when we open it up, there's not much flux in the containment. The containment doesnt seem to trap the flux. infact, we hv more flux in the duct than the containment. anyway, we will talk to MFGR to get their recommendation. Thanks.

Reflow oven/wave solder air quality filter

May 9, 2006 | Grease filters work well. They're cheap, easy to clean and come in all sizes. Will not reduce your air flow by much either.

Water Soluble vs. No Clean

May 4, 2006 | Dang it Chunks! Didn't even think of the intitials correlation - nice one. Maybe I'll stick with P

Water Soluble vs. No Clean

May 4, 2006 | And of course it is a great product that performs well! there's a sales pitch for you from a USER

Water Soluble vs. No Clean

May 3, 2006 | Chunks, you don't wanna know where I would put aqueous cleaners in the bio equation. (just kidding

Water Soluble vs. No Clean

May 3, 2006 | Does that make the board the bone? If so then the components are tendons? I knew I should've staye

Water Soluble vs. No Clean

May 3, 2006 | And for all you dopes who come on this board and shamlessly promote your products through strong-arm

Water Soluble vs. No Clean

May 3, 2006 | Chunks, You should have been in marketing But as a flux manufacturer I have to make a small corr

Tip life of soldering irons with lead-free (SAC305)

May 2, 2006 | I also heard that fluxes are more agressive in lead free alloys. Try maybe to clean your tip more often ?!?!?

Component Terminals with silver plating

Apr 20, 2006 | Silver tarnish on lead could compromise the soldering, mainly in case of No Clean process. Make sure components are correctly packaged and stored. Check the vintage ( Manufacturing Data Code) and in order to avoid them to get old on shelf make sure FI-FO procedure is in place. etc. Regards......GS

VOC-Free Flux Eval.

Apr 18, 2006 | Has anyone done a Wave Solder flux evaluation lately for no-clean/VOC-Free/lead-free? If so, please do share some feedback. Who're the best candidates out there, etc?

White residue inside the reflow oven

Apr 18, 2006 | we didnt see it as a potential risk, main accumilations we around the entry and exit curtains so we lived with it and cleaned (quick wipe with acetone) once a week.

White residue inside the reflow oven

Apr 13, 2006 | I had something similar a while back it looked like fibreglass insulation in my case (was using no clean flux not water based), i took some and melted it with a soldering iron and it reacted like flux. and i tried disolving it with acetone.

LASER SOLDERING

Apr 11, 2006 | Dougs, Make sure they use the same solder that you plan to use. In my case they were unable to get acceptable solder joints with our solder. We use no-clean P1 flux in our cored solder. So I recommend you try before you buy. Jerry

Omniflo 5 conveyor

Mar 27, 2006 | The only problem with the Tribol is PB Free profiles. At thses temps, the Tribol smokes and stinks bad. It also has a tendancy to carbonize. I find myself having to use easy off to clean the chains.

Omniflo 5 conveyor

Mar 24, 2006 | Hi AR Nice job on the chain/rail cleaning. I would contact Speedline Electrovert tech support, 800.737.8110 to assist in trouble shooting. They can walk you through using a meter to measure input and output current to the SC card and make sure that is the issue. thanks marc

Omniflo 5 conveyor

Mar 23, 2006 | We had the problem for � a year, and cleaned everything. We replaced the DART-control unit, and have not seen the problem since

spareparts to JOT conveyor

Mar 20, 2006 | Spare parts? Like what? If it's your belt motor, try cleaning out the gear box attached to it. 99% of the time it's the lube in this gear box that dries out and turns to glue.

Omniflo 5 conveyor

Mar 20, 2006 | We just went through this exact same problem on an OmniFlo. We did all the stuff Marc talks about and the problem went away completely. As Marc states, clean the chain guides! You will will see lots of junk near the last zones(s).

Flux appearance

Mar 17, 2006 | It's a no clean paste. Yes it's a single lead (sometimes a few at random locations) and i do notice that corner leads (or close to it) fails more.

LLP Device

Mar 8, 2006 | Chunks nailed it. You should not expect to see a perfect side fillet on this part, especially using no-clean, it's probably bare copper, hard to wick solder up the side of the lead.

Solvent Cleaning

Mar 3, 2006 | Look at Zestron too, http://www.zestro

Wave Solder Issue or maybe not?

Mar 1, 2006 | I would definitely try a more agressive flux. Are you using a W.S. or No-Clean? And of course check the usual preheat temp flux application dwell time immersion depth

ESD Flooring

Feb 27, 2006 | If you are going for high margin business then you may want to ditch the blue smurf coats & go for white - they are a bugger to keep clean but look like you have a dedicated team of scientists. (Giving people clipboards & safey glasses helps complete the picture).

wash

Feb 9, 2006 | Se�or Tech If you want clean board using a dish waher, you must run deionized water. If you run DI water through a dishwasher, it will cut through those flimsy pipes like fire driven by Sana Anna Winds through dry brush.

CLEANINING PCB OXIDATION

Feb 3, 2006 | Does anybody know how could I clean pcbs with immersion silver finising ? I have several boards that got oxidized for having been waiting too long to be processed after opening the package.

Defluxing Advanced Packages

Conformal Coating Machine under 40000