Electronics Forum | Tue Oct 11 11:47:22 EDT 2011 | kahrpr
Davef is correct that's some nasty stuff. It was used somewhat in the 80s maybe the 90s it can clean a board however its total over kill for cleaning and it can harm you. I worked in a shop back in the 80s in the vapor degreeser days. and they used
Electronics Forum | Thu Nov 10 09:25:54 EST 2011 | kevinemslie
We have had an issue where a turnkey company has a solderability issue with boards that we supplied. The most thorough way of proving thay the boards work in my opinion is to take a bare panel randomly from the batch (same date code) to have it paste
Electronics Forum | Tue Dec 13 18:30:46 EST 2011 | IT23
Currently, we are using fixed barcode scanners that connect to Cogiscan PFC box. The scanners are mounted using a flexible arm. The flexible arm is hard to adjust so that the scanner will be on top of the label every time it hits the sensor. I'm look
Electronics Forum | Thu Jan 12 20:11:25 EST 2012 | davef
Isola water pressure. Between a 210°C normal tin lead cycle and a 250°C lead-free assembly cycle, the vapor pressure doubles. Reflow temperature [*C]||Vapor pressure of water [psi] 150||100 200||225 210||260 220||320 230||400 240||480 250||580 300||1
Electronics Forum | Thu Mar 15 06:01:24 EDT 2012 | andyhat
We run Mascots for leaded assembly on 15 stations for 20 product types in around 2500 variations...the system works brillianlty for us, but we experience programs going out of sequence for no apparent reason spontaneously - literally, an operator can
Electronics Forum | Tue Mar 20 16:23:20 EDT 2012 | hegemon
Based on my experience with OMRON VT-RNS, I would not consider this machine unless you are running high volumes of a limited number of assemblies. Programming and debug took a lot more time than than other machines in the same price range. After deb
Electronics Forum | Mon Mar 19 22:09:38 EDT 2012 | davef
J-STD-003B prescribes test methods, defect definitions and illustrations for assessing the solderability of printed board surface conductors, attachment lands, and plated-through holes utilizing either tin/lead or lead-free solders. This standard is
Electronics Forum | Tue Apr 03 08:38:34 EDT 2012 | tombstonesmt
Yesterday morning wasn't the first time I noticed this condition. We remove the dross from the pot twice a day and once a week we remove the pump assembly and it still produces this type of dross. I googled this situation and some factors of this par
Electronics Forum | Mon Apr 30 08:34:08 EDT 2012 | almoore
We use a small surface mount connector that has two alignment pins to ensure proper alignment. It works fairly well. I'm thinking that this simple alignment solution might work well with lead less parts like a BGA or QFN. I can hand assemble QFNs
Electronics Forum | Tue May 08 16:00:55 EDT 2012 | scottjwarren
The Dima PnP machines look really nice -- exactly the size and capabilities we will need for the next 3-5 years. Apparently, however, they are supported in the US by Manncorp. I have nothing personally against Manncorp, but have heard bits here and
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