Electronics Forum | Thu Jul 24 10:49:12 EDT 2008 | slthomas
100 CFM at each exhaust if you're using room air, 25 CFM/ea if you're using nitrogen (according to my manual...never used nitrogen myself) per their specified delivery rates.
Electronics Forum | Wed Jul 23 18:25:12 EDT 2008 | shanenaturalpoint
I just purchased a used Heller 1500 reflow oven for an SMT line that I am ting up. Looking for the CFM requirements for my exhaust venting. Does anyone out there have any information on what the minimum requirements are for pumping this exhaust out
Electronics Forum | Wed Aug 06 23:32:19 EDT 2008 | darby
It SHOULD be written on the machine. I have had/have 1500 Hellers that range from 60cfm to 500cfm Check the fine smtnet archives. http://www.smtnet.com/forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=8859&#Message35065
Electronics Forum | Mon Jun 10 10:12:42 EDT 2019 | assuredtech
What is the year, make and model of your oven? Are you running it with Upstream and Downstream (pre-reflow, post-reflow) conveyors? Is the qty of the product low, medium or high? What is the max process width of the oven? what is the max board with o
Electronics Forum | Thu Jun 13 12:44:39 EDT 2019 | dwl
A couple of caveats; The FR4 will degrade with successive reflows and will eventually need to be replaced. Not a big deal for low volume, but something to be aware of. The bigger concern is that a sheet of .125" large enough to position your assembl
Electronics Forum | Thu Jun 13 12:50:00 EDT 2019 | don_julio
> A couple of caveats; The FR4 will degrade with > successive reflows and will eventually need to be > replaced. Not a big deal for low volume, but > something to be aware of. The bigger concern is > that a sheet of .125" lar
Electronics Forum | Mon Jun 10 09:12:18 EDT 2019 | pcbconnectchina
Hello! Don, Yes, if the carrier is steel/stainless, it would be very hot when it comes out from oven. I heard that durostone (synthetic stone) carrier can meet your requirement, it can stand high temperature with low thermal transmission. So when it
Electronics Forum | Tue Jun 11 11:22:19 EDT 2019 | sumote
If the board is just not reaching the temps you need, you could place them in an oven to "preheat" them. When I was building a rather thick board with a copper core I had to do this. Since we were only doing small runs it was feasible, I don't know y
Electronics Forum | Tue Jun 11 11:25:57 EDT 2019 | don_julio
> If the board is just not reaching the temps you > need, you could place them in an oven to > "preheat" them. When I was building a > rather thick board with a copper core I had to do > this. Since we were only doing sma
Electronics Forum | Thu Mar 17 11:15:26 EDT 2011 | circleprime
I did some investigating and it seemed that getting a reflow oven with an inert atmosphere could be the answer to the inconsistant wetting issues that we are having with a leadfree DFN-10 on one of our products. Here's my question(s). It seems that
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