Electronics Forum | Tue Jul 27 13:48:45 EDT 2004 | Ralf
Hi Recently i have noticed that after reflow (hot air oven) on the solder lands without components but with solder(screen printing) there is discoloration. It looks like gasolin spilled on the wet road (rainbow). Any idea and reason Ralf
Electronics Forum | Mon Jan 19 11:58:07 EST 2009 | slthomas
Like has been said, I would expect N2 to provide for shinier joints. On the other issue, which is it...O2 or compressed air? I would expect air to do nothing, and O2 might actually make your joints oxidize faster (duller appearance)...or blow up yo
Electronics Forum | Sat Sep 08 19:04:26 EDT 2012 | jlawson
You might also want to consider process repeatability cross profile performance over time and energy consumption. Also reliabilty is effected by shift usage etc,. Eg could have oven that might appear reliable in one context but not overall. Ie total
Electronics Forum | Tue Mar 26 07:42:32 EDT 2019 | kylehunter
Hello all, My company specializes in pcb design and subsequent prototype assembly. With that core of business, we will assemble up to 10 boards a week. We currently hand solder and use a reflow hotplate for these boards. We have been getting reques
Electronics Forum | Wed Mar 12 15:26:46 EDT 2014 | dan_ems
Hello, in my SMT process I have some problems with the solderability (look like dewetting) on a PCB with finish HASL Lead Free with a composition that is melt at 230 degree Celsius. My oven is with vapor phase and the peak temperature is 230 degre
Electronics Forum | Thu Aug 01 13:04:57 EDT 2002 | gdstanton
Its interesting. It appears I'm getting conflicting feeback from Indium. This says its not a problem... http://indium.custhelp.com/cgi-bin/indium.cfg/php/enduser/std_adp.php?p_sid=kTDKGClg&p_lva=&p_faqid=355&p_created=1014734692&p_sp=cF9ncmlkc29
Electronics Forum | Wed Aug 22 16:11:15 EDT 2007 | razor1
If the problem appears to be random... we had a similar problem. We found that the belt which feeds the PCB through the reflow oven would jump or lurch ahead. It was barley noticeable but if you have identified the frequency and time of the compone
Electronics Forum | Sat Sep 12 04:19:28 EDT 2020 | SMTA-64387098
I have just built a new factory and installed the old Heller 1707 XL oven. When I run the oven the LED panel lights and downlights in the entire building begin to shimmer after 2nd zone is switched on. It does not get worse when the whole 7 zones are
Electronics Forum | Fri Dec 03 16:25:08 EST 2010 | adrnbntz
Having Trouble with an old SMR500 oven...appears that HDD fails...need to restore software but I do no have it vitronics does not suppor it any more... Any one can help me with software VCP...is in OS/2 Operative System. Regards.
Electronics Forum | Tue Aug 17 11:54:34 EDT 2004 | rlackey
Hi, You might find you also need an oven & dessicant for the re-sealing & re-baking process. We found a couple of second hand Gallenkamp ovens (appear to be well made) & a Komet 20 vaccuum sealer for this. Also those natty little cards that chan
