Electronics Forum: extend (Page 1 of 41)

gas to extend allowed print-to-place time?

Electronics Forum | Mon Apr 25 08:27:31 EDT 2016 | davef

One word: Dispense your paste

gas to extend allowed print-to-place time?

Electronics Forum | Wed May 04 00:04:39 EDT 2016 | comatose

Loctite's new GC 10 paste allows for some pretty extended print cycles. I was skeptical, but the stuff doesn't seem to ever dry out. I've had overnight print to place cycles work at room temperature, and they spec a stencil life of three days. Might

gas to extend allowed print-to-place time?

Electronics Forum | Mon Apr 25 11:37:38 EDT 2016 | cyber_wolf

Or try : http://www.sipad.com/ I have had some experience with it. Seemed to work OK.

gas to extend allowed print-to-place time?

Electronics Forum | Wed May 04 03:42:51 EDT 2016 | adamjs

Yeah, this has been my experience too, but unfortunately GC10 is unusable with thick stencils. It jams up the apertures like nothing I've ever seen. The cost of its miraculous properties is that it is as sticky as GLUE.

gas to extend allowed print-to-place time?

Electronics Forum | Tue Apr 26 03:26:21 EDT 2016 | spoiltforchoice

Hah I meant to say that too, depending on the exact requirements you may even be able to do this with something cheaper than A MY600/Scorpion. Plenty of printers these days can dispense paste as can pick and place machines and small dedicated units.

gas to extend allowed print-to-place time?

Electronics Forum | Mon May 02 12:24:11 EDT 2016 | adamjs

One word: Dispense your paste That's three words! Unfortunately the board has nine LGA components. Stenciling is the only way to get the required consistency in deposit shape and volume. If the board were all passives+QFN I would definitely use a

gas to extend allowed print-to-place time?

Electronics Forum | Tue May 03 09:19:17 EDT 2016 | rgduval

I've successfully refrigerated a pasted board, and placed/reflowed it the next day with minimal issues. However, this is highly not recommended by anyone, anywhere. You might want to invest in a stencil cleaner...might be the same time investment,

gas to extend allowed print-to-place time?

Electronics Forum | Tue May 03 23:27:03 EDT 2016 | adamjs

I've successfully refrigerated a pasted board, and placed/reflowed it the next day with minimal issues. Me too. I'm looking for more than one day. > You might want to invest in a stencil cleaner Tried that. They do not work on the high-aspect ra

gas to extend allowed print-to-place time?

Electronics Forum | Mon Apr 25 06:34:29 EDT 2016 | spoiltforchoice

I'm going to ask the obvious question first. Why can't you place the entire job the same day you paste it? Getting a sensible workflow is a far better method of improving productivity than experimenting with crazy solutions. I can see a gas atmosphe

gas to extend allowed print-to-place time?

Electronics Forum | Thu Apr 21 19:41:35 EDT 2016 | adamjs

Hi, is there some sort of gas (certainly refrigerated, possibly pressurized?) in which printed boards can be stored to extend the allowed time between SMT paste printing and placement? Or other technique for achieving this? Background: we're a smal

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