Electronics Forum | Thu Aug 14 09:34:46 EDT 2003 | davef
We can solder and clean lead-free in well-controlled and stable processes. We have no reason to believe that products made with lead-free will be reliabile. We know that lead-free soldering is worse for the environment than other less costly proces
Electronics Forum | Tue Jan 11 03:43:51 EST 2005 | Scott B
We have had similar problems and have abandoned use of MySpeed. I don't know what version of Mydata software you are running but have started to use the 'Hydra Preparation' function within TpSys 2.3 to arrive at optimised set-ups. Mydata advise that
Electronics Forum | Thu Feb 17 11:48:08 EST 2005 | Rob
Hi Frank, What are your main issues on inspection? Is it missing or missaligned components, poor solder joints, or long inspection times? If it's a good system that does everything you could start it after the printer to verify that operation, the
Electronics Forum | Fri Feb 18 17:57:46 EST 2005 | Grant
Hi, The normal electronic components you purchase should have lead free variants. Also, all solder paste manufacturers have lead free solder pastes, so you just need to get the paste specification, and then re-profile your oven for it. Temps are hig
Electronics Forum | Mon Apr 11 06:37:59 EDT 2005 | amstech
As long as you have a continuous profile with required soak and dwell periods, the zone lengths do not matter. For lead free, usually ramp to peak is preffered.that is with minimum soak (you can not avoid soak anyway. You can achieve the profiles irr
Electronics Forum | Thu Jul 14 11:04:53 EDT 2005 | dougs
yes SPC can be used on a wave solder machine, you should use a c-chart to monitor the amount of defects per board or group of boards, this will let you know if your process is stable, as you improve your process you should re-calculate your UCL, hope
Electronics Forum | Mon Jul 18 16:48:54 EDT 2005 | lupo
Hello, According with quality standards TS16949 ,QS 9000 etc. improvement can be perform when the process is stable and capable. So, if DOE is method for improvement it is a good idea, first to run SPC for investigation process stability and capa
Electronics Forum | Tue Apr 25 01:23:28 EDT 2006 | kanna
Thanks. currently we already reduce the temperature and change the bimetallic switch. can anyone help me on the alert problem. the alert trigger when the zone 1 section empty without board. current temperature setting is 187 even i lower the tem or i
Electronics Forum | Fri Mar 23 08:41:06 EDT 2007 | oldsmtdude
And I might suggest AOI at post print and post place to hone your process before even considering post reflow AOI. Post reflow AOI alone is iffy and an absolute chore to keep up with. But monitoring paste and placement are very easy. Establish a sta
Electronics Forum | Thu Apr 26 08:29:37 EDT 2007 | pavel_murtishev
Good afternoon, We develop reflow profile ones and control it daily or when recipe changes after that. Modern reflow ovens are usually very stable. This means that your zone temperature set points won�t deviate from initial ones. You can calculate d
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