Electronics Forum | Fri Aug 04 07:21:28 EDT 2006 | joe
Does anyone have any ideas on how to keep my soldering tips from turning black when using lead free solder. I am going through a lot of tips. Thanks
Electronics Forum | Fri Aug 04 08:28:20 EDT 2006 | Rob
Hi Joe, Try: S03X7C-56M from koki - http://www.ko-ki.co.jp which has cobalt in it to extend tip life or: SN100C from Nihon Superior, which is a nickel stabilised alloy that also extends tip life. The Koki solder flows better that any other leadfr
Electronics Forum | Tue Jul 12 06:13:30 EDT 2005 | dougs
A while back we checked out all our manufacturing equipment for lead free capability, we thought our soldering irons would all be fine as they can reach temperatures well in excess of lead free alloy melting points. Last week i was speaking to someo
Electronics Forum | Wed Feb 21 14:14:11 EST 2007 | rgduval
Hi, Bill, Lead-free solder and paste manufacturers will be a great resource for you during the transition; they've tested their products extensively, and their application groups have been able to help me through the biggest changes. There are a fe
Electronics Forum | Thu Jan 29 16:48:49 EST 2009 | slthomas
Looks like a time/temperature problem to me. However, there are a lot of solder fines surrounding the pads in one photo that go beyond what I'd expect from inadequate TAL. Is it possible that the board was misprinted and not completely cleaned, or
Electronics Forum | Fri Feb 17 11:01:47 EST 2006 | amol_kane
with lead-free solders, one would expect to find less instances of tombstoning. this is because SAC alloys are not eutectic and melt over a range of temp (usually 217-220 deg C) instead of at a single temperature. therefore the forces due to solder s
Electronics Forum | Tue Dec 12 01:52:05 EST 2006 | hemu_me
As we have vitronics oven(SMR610A) made in dec,1997,which has 5 heating zones and 2 cooling zones. For Lead free soldering what should be our baseline for low/medium boards.we have gathered profiles from various paste manufacturers,however we don't k
Electronics Forum | Thu Nov 03 09:43:55 EST 2005 | lupo
Check flux penetration and type of flux. How much is solid contents. The solder filling is better under Nitrogen. Check the time (speed) of the nozzle whether is correct. Usually For SAC305 the temperature of bath is 320C/degrees, but only for sel
Electronics Forum | Fri Jan 30 06:28:42 EST 2009 | gregoryyork
Hi Armando Hotflow 7 is a big machine and one of the best Reflow ovens around (in my opinion), well suited for Lead Free. A typical 1.6mm board has the following settings for Lead Free SAC305 paste All Temperature settings are Top and Bottom Prehea
Electronics Forum | Thu Dec 28 15:40:13 EST 2006 | fredericksr
The fluxes involved with lead-free soldering tend to be more aggressive and the tip deterioration is a side effect of making the world a greener place. I am not certain if any of the tip manufacturers claim to have lead-free resistant tips. I would
