Electronics Forum | Wed Jan 11 14:51:05 EST 2006 | j keller
we have a new ersa ews500 wave machine and are experiencing difficulty in profiling for lead free. particular issue is reaching 110c preheat for large TH electrolitic caps while maintaining 110-170c on 1/4 watt resistors in same area
Electronics Forum | Fri Jan 13 12:12:48 EST 2006 | jimk
we have 4 bottom IR heaters and a 2 zone bottom Quartz heater (2 lamps/4 lamps) and 1 convection heater above zone 1 IR. we have very tight restrictions from customer and I could send profile view to your email if possible
Electronics Forum | Wed Jan 11 16:56:15 EST 2006 | russ
So are you saying that you cannot reach 110C at 1 location without raising another location to excessive preheat temp? If so, sometimes slowing down the conveyor and dropping the preheat temps will help you get equal temps. I do not know this machi
Electronics Forum | Mon Jul 29 19:21:58 EDT 2002 | davef
Look to: * Your flux supplier's recommendations to baseline your recipe [similar to using your paste supplier's recommendations for setting your reflow recipe] * 7530 'Guidelines for Temperature Profiling for Mass Soldering (Reflow and Wave)' for gui
Electronics Forum | Sun Apr 12 21:37:52 EDT 2009 | padawanlinuxero
HI !!! We have the same oven! and yes profiling is hard, but not that bad. Check with the solder paste company for information, right out of my head dont remember for the temps that we use on mondayIcan show you my profile so that youhave an idea
Electronics Forum | Fri Mar 27 10:04:51 EDT 2009 | ericthered
We have been having problems with proper wetting when running mainly lead free but also leaded solder in our Ersa Hotflow 3. Solder either often looks grainy or doesn't flow over the whole pad. This is generally the case when my profile is 170 firs
Electronics Forum | Mon Apr 13 12:32:55 EDT 2009 | ericthered
That would be great Armando, thanks. Also, what changes might I make with metal clad light boards (LED). heat transference is tricky with these and the solder is not wetting well.
Electronics Forum | Tue May 20 03:21:05 EDT 2008 | grayman
I sell wave solder optimizer in Philippines. I have sold many of this optimizer system. It cost less than US$10K. Most of my customer is happy with the performance except for some issues from customers like LCD not yet colored, uses RS232, upgrades
Electronics Forum | Mon Dec 04 21:42:12 EST 2006 | KEN
Keep in mind that device pitch, pad geometry, lead length and even alloy type will play a roll in your evaluation. I have an assembly that we run 10k pieces per month. One two-pin connector has a pitch of 1.27mm. Unfortunately, the pads are 0.007"
Electronics Forum | Mon Jul 10 07:46:51 EDT 2006 | ronalds
You are right, RSS profile is not the correct description. I am using a profile which heats up quickly to let the flux spread. Next linear up to activate the flux and prevent thermoshock. My experience is however, that small changes in this profile
