Electronics Forum | Fri Feb 25 18:13:17 EST 2005 | davef
Your leadfree dross should float, similar to your leaded dross. It's possible you're thinking about the process for removing excess copper from the solder pot. Following the same process, with: * Leaded solder, the copper floats. So, you scoop the
Electronics Forum | Thu Mar 10 12:11:30 EST 2005 | Rob
Hi P-Y, Nitrogen = 15 euros per hour. Solder replenishement = 1kg per hour at 11.5 euros per hour. Obviously there is also the labour involved in scraping off the dross. Cheers, Rob. NB. For all our US friends a Euro is a strange Belgian inventi
Electronics Forum | Thu Mar 10 19:28:22 EST 2005 | KEN
Euro's....Euro's....ah yes here it is. RoHS, Article 4....shall not contain: Hex Chromium, lead, mercury and Euro's. I heard our sales guys telling a customer tour the other day that we were No Clean, VOC free, lead free and Euro free compliant!
Electronics Forum | Fri Feb 25 15:08:30 EST 2005 | jdengler
John, We tape (usually high temp tape) flex to a fixture (usually 0.090" piece of bare FR4). We make an outline on the fixture to get a rough location then use fiducials on the flex for alignment. Print, place, reflow, cool, remove flex. When the
Electronics Forum | Thu Mar 03 05:58:34 EST 2005 | vinitverma
Hi, At what stage do you get this error? Can you send me your cad data so that we can simulate the same at our end and probably inform you the solution. Also what is the configuraiton of the machine? How many cameras do you have for component alignm
Electronics Forum | Thu Mar 03 11:40:20 EST 2005 | sasha
Hi Vinit, Thank you for your reply. The machine has three standard heads. The machine has no cameras. The mistake appeared after pressing key RUN (for different programs). We had reset machines. We have entered old values repeatedly. The mistake do
Electronics Forum | Thu Mar 03 05:56:02 EST 2005 | vinitverma
Hi Raj, Where are you located? We could probably help out with this by sending an engineer to your faciltiy if you're in India. If not, you can call me on +91 98182 54448 and we could solve both your problems in YV112 as well as YV100XT. Regards Vi
Electronics Forum | Mon Feb 28 06:06:04 EST 2005 | Guest
I'm looking for recommendations on pad and stencil design for products with 0.5 mm pitch BGA's. The latest info that I found in the archives of this forum dated more than a year ago. It didn't give me much confidence that assembly of such components
Electronics Forum | Mon Feb 28 11:01:59 EST 2005 | jbrower
Hi Ing, Yes, slope of the conveyor is important. What type of assemblies are you having 50-75% fill on. Are they single sided? Plated through hole? Is this a recent problem? I'm more than happy to help, but I need more information. Best regards, J
Electronics Forum | Mon Feb 28 16:04:30 EST 2005 | Alex
I use to have that kind of problems with other type of machines and here are the causes: 1- Spray fluxer head partially obstructed (check flow rate) 2- Defective pre-heater probe (manually check temps) 3- PROFILE (last preheat to 280) 4- we sometimes
