Electronics Forum | Mon Apr 16 12:59:51 EDT 2001 | Mike R
If you will place a temperature strip on the board during wave soldering process you will get a max of 210 F or 98.8 C which is normal on the standard wave temperature. The problem on the 10% solder on the TH via hole can be caused by insufficient fl
Electronics Forum | Mon Jan 23 08:06:52 EST 2017 | bukas
i have an issue with solder bath temperature. there is a big difference in temperature of alloy in the middle of the bath and at the ends(about 35C). i took down heating elements for inspection and they look fine. its just that most of the heat is cr
Electronics Forum | Fri Sep 24 11:08:13 EDT 2004 | davef
We're not sure what you mean by temperature sensitive components. From an assembly process stand-point, every component we use is temperature sensitive to one level or another. More specifically, some of our products use polyphenylene sulfide (PPS)
Electronics Forum | Thu Jun 08 04:31:24 EDT 2006 | vasily
Hi First I think you have to analize your PCB design. Heavy weight components should be gathered on one side of PCB. As I think, if you want to reflow both sides simultaneously there might be a problem. A chance that large components will drop off
Electronics Forum | Mon Nov 15 12:27:33 EST 1999 | Wolfgang Busko
Hello everybody, engeneering came up with following problem: Considering worst case the get a temperature at a component (Resistor 0805) of 109�C and 99�C at the solderjoints. As a rule of thump I said that the max. suitable temperature for the solde
Electronics Forum | Fri Oct 08 10:08:48 EDT 1999 | Glenn Robertson
| | | | I have a board, 4 spacers needed to be soldered on the board | | | | first with the normal 62Sn37Pb alloy. Then, capacitors are manually soldered on the boards. The density of the board is quite high. If we wave soldered capacitors first,
Electronics Forum | Thu Nov 16 14:22:48 EST 2000 | Kris
Howdy Y'all, I have seen a problem lately with getting the 0402 parts out of the tape and onto a PCB. We are using Universal HSPs with 8 X 2mm feeders in good condition. The components are manufactured by Rohm. The tape and components appear to b
Electronics Forum | Mon Aug 13 16:07:08 EDT 2007 | dyoungquist
We run double sided surface mount boards through our Heller oven without any parts falling off the bottom side unless they are too big/heavy. The trick we use is to set the bottom side temperature in the final 3 heat zones 10C-20C lower than the top
Electronics Forum | Tue May 22 12:27:04 EDT 2007 | cyber_wolf
I would consider calling Kester and telling them they need to send their people out. I could not really see mesh size being an issue on anything 20mil and above. There are several other issues that can cause aperture clogging as well...: Incorrect
Electronics Forum | Thu Jan 12 20:11:25 EST 2012 | davef
Isola water pressure. Between a 210°C normal tin lead cycle and a 250°C lead-free assembly cycle, the vapor pressure doubles. Reflow temperature [*C]||Vapor pressure of water [psi] 150||100 200||225 210||260 220||320 230||400 240||480 250||580 300||1
