Electronics Forum | Mon Jul 28 11:31:42 EDT 2008 | blnorman
Ideal situation is get a technical rep from the solder paste supplier. They know their paste better, and should be able to work out a profile based on their paste and your oven. Again, a technical rep, not the sales guy.
Electronics Forum | Mon Jul 28 16:48:54 EDT 2008 | pcbbuilders
my oven has a built in profiler, it works fairly well, but it can not predict changes. my main concern was about the time right before reflow. i know that's where the flux is activated and i was worried that i may be spending too much time at the tem
Electronics Forum | Mon Aug 04 09:30:16 EDT 2008 | grics
If you have concerns, you can look at the datasheet for each component or contact one of their application or materials engineers and find out what the components are rated for...process-wise. IE, how long can I be in the oven with this part, at what
Electronics Forum | Fri Jul 25 15:54:22 EDT 2008 | pcbbuilders
I am trying to optimize my reflow profile. i have a 5 zone oven. lead-free: for the 1st 3 zones, i am good, at about 150-200 deg for 150 seconds. during the 4th zone, i am at a temp of 200-220 for 50 seconds. during the 5th zone, i am at 220-245 f
Electronics Forum | Tue Feb 01 10:25:24 EST 2005 | Scott Baker
Jay - I read your report and was interested to see that you ran your evaluation on a Heller 1500 5 zone. We have been hearing for some time that a larger machine (7 zone min)with higher temp heaters and fan motors would be required. Is yours a "hi t
Electronics Forum | Mon Nov 01 10:44:03 EST 2004 | Denis
If you need to loook at lead free ovens then you owe it to yourself to look at Manncorp. You all know our name but did you know that for 30 years we have scoured the earth to bring you high quality low cost choices in SMT equipmenmt? Look at the ne
Electronics Forum | Thu Jan 20 17:14:39 EST 2005 | jbrower
Today, I have just finished evaluating Kester's EM907 (SAC305)lead free solder paste and found that for our applications it performs as expected. End result that I am encouraged with the results that we got. The equipment that I used: An SMT2020 to
Electronics Forum | Wed Aug 31 03:35:41 EDT 2005 | Slaine
I have a through hole product that is currently built with HMP solder(93.5Pb,5Sn,Ag1.5). We then dip it in 60/40 SnPb to give a solderable finish as HMP tends to oxidise. We need the HMP as our Customers solder through reflow ovens. Some customers w
Electronics Forum | Fri Oct 29 09:45:08 EDT 2004 | pioneertechnology
In 1995 we bought 4 Vitronics U520 reflow ovens with top heat only. We ran these ovens until 2003 for both curing and lead reflow with no problems. In 1998 we bought 1 U520 top and bottom heat and one U820 top and bottom heat and once again we had
Electronics Forum | Fri Nov 19 10:26:47 EST 2010 | cyber_wolf
We use copper anti seize on the ball screws in our PBfree reflow ovens.
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