Electronics Forum | Thu May 22 16:52:39 EDT 2008 | tonyamenson
Indium got back to me with the attached PDF. I always assumed, that in order to avoid thermal shock, there could not be any more than 80 degrees C difference between the solder pot and the pre-heated board. However, it would seem that any thing le
Electronics Forum | Fri Nov 05 21:41:46 EST 1999 | chartrain
Temperature vs time is what soldering is all about. The faster you run your conveyor, the more heat will have to come from the pot for a given assembly. Example: You heat the board to 200F top side through the preheaters. Eutectic 63/37 melts at 361.
Electronics Forum | Fri Nov 21 14:11:09 EST 2003 | russ
We have a customer with the same requirements. We use a hot air pen to rework the caps. This is supposed to eliminate the thermal shock that is present when a soldering iron is used. The solder iron tip temp is usually 600-700 degrees and comes int
Electronics Forum | Mon Aug 09 07:37:33 EDT 2004 | C Lampron
Abraham, Lead free components in a leaded process should not be a problem. The problem increases with leaded components in a lead free process. For the most part, the only difference that you will see is in BGA procesing. If a BGA is lead free, the
Electronics Forum | Fri Apr 14 07:59:42 EDT 2006 | amol_kane
Hi russ, I am in the process of developing a "hybrid" reflow profile to solder a board that has LF BGAs and leaded solder. Have you encountered a similar situation before? if so what was the "safe" top side temp for the leaded components that was set
Electronics Forum | Mon Oct 03 16:02:55 EDT 2011 | artposada
The machine does not have pre-heating feature. I'm soldering a six-up panel...I've tried putting them a an oven and letting them soak for 20 mins or so at a low temp. But by the time I placed the panel in the machine and manually fluxed the top sid
Electronics Forum | Mon Jul 22 10:37:06 EDT 2013 | torch
we have been asked by a client if we are capable of producing product that will require HMP, I am currently tyring to gather as much info as I can with regards to this solder type and would like help can we run this type of solder through a smt line
Electronics Forum | Wed Jun 29 12:04:29 EDT 2022 | kumarb
Hi. Alpha metals recently informed us of: Alpha OM-565 low temp solder which they note is popular with pin-in-paste process of through hole parts so that we can solder inside of our SMT oven (1809EXL). We commonly use ROHS DSUB connectors (9 to 78
Electronics Forum | Tue Oct 10 07:30:19 EDT 2017 | spoiltforchoice
TBH I think perhaps the OP deserved it, there is perfectly good explanation of Reflow and Process Window Index on Wikipedia for starters and if you want more all sorts of FREE specialist papers on things like reflowing flex circuit, lead/lead free et
Electronics Forum | Tue May 26 17:29:42 EDT 1998 | Earl Moon
| I know, I've read the "been there done that" stories about this subject, but I still profess ignorance on some aspects. | We are using NPO type dialectric caps in potted high voltage assemblies and continue to experience catastrophic vailures. U
