Electronics Forum: production scrap (Page 1 of 9)

White tin pcb, smt production

Electronics Forum | Sat Mar 05 22:44:44 EST 2005 | gpaelmo

You can also try the Florida Circtech website or call them direct. There is a min. thickness requirement and if the board house does not follow it you will end up with scrap boards after the second pass (from experience). I even sent blank boards to

% of wasted components in SMT production

Electronics Forum | Thu Mar 25 14:31:28 EDT 2010 | cguerzoni

Thank you, it seems to be an high scrap %. I think that this % depends on the size of the component (machine loss), on the lot size (new lot set up loss) and on the number of components per reel (new reel set up loss). What do you think abot this?

Seeking very low volume production reflow oven

Electronics Forum | Wed Apr 26 12:38:33 EDT 2006 | TMC

I would suggest you do the following: get a sample / scrap board that you will be reflowing, attach thermocouples at various locations on the board, send the board to APS or whomever. Ask them to run a profile based on your solder pastes manufactur

Humidity and temperature

Electronics Forum | Wed Sep 14 04:09:21 EDT 2016 | jimmyh

We are enclosing our SMT room and will control the Humidity and Temperature of the room. Is there a standard for humidity and temperature for a SMT room and if so what is it. What is protocol if it goes out of tolerance? Do we stop production? Is

Looking for "carrier" for Reflow

Electronics Forum | Wed Oct 04 20:46:56 EDT 2023 | stephendo

I believe usually board shops will have scrap pieces laying around and will send you some if you ask. I've also seen them use scrap material to sandwich production boards for shipment to protect them. And we usually get scrap boards for testing and h

Frequency to verify the reflow profile

Electronics Forum | Sat Jun 04 15:06:20 EDT 2005 | slthomas

After profiling with a scrap board of the product I'm profiling, I would immediately send the MOLE through with one thermocouple only, no board, to provide a standard that I could reproduce without depending on scrap boards. I used that setup before

solder pot

Electronics Forum | Mon Dec 19 09:39:44 EST 2005 | 4rides

I find myself in possesion of a solder pot from a production machine that was sent to scrap. The scrap man was uninterested in the 2 ton pot. Does this thing have value ?? Or am I stuck with a hunk of Hasmat ???

Dropped reel component guide lines

Electronics Forum | Wed Dec 21 11:56:14 EST 2022 | fredrik

Looking for guide line or rule of thumb to use in production if reel of component is dropped in production Both Active/Passive components Any study available? Example: Active: 30cm drop =Scrap Passive 60cm drop =scrap BR Fredrik

Streaking at Screen Printing

Electronics Forum | Tue Dec 19 10:25:38 EST 2006 | slthomas

I'm not familiar with that printer so not sure of the support config., but can you plug the openings in the product with some pieces of scrap board (not likely on support pins but workable on a plate) and look for a difference in performance? Does t

Pre- and post-reflow rework

Electronics Forum | Fri Jan 28 07:31:33 EST 2005 | David

Our company are going evaluate closed-loop feedback system with AOI as soon as possible. I would like to know what is your opinion that what are the main benefits in this application?? And we would like to get as less as possible scrap products.. How

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