Electronics Forum | Fri Jul 20 08:09:09 EDT 2007 | chrispy1963
In passives I dont know if anything changed at all other than the terminal plating. As for Active components there has been much engineering done to allow for the extra heat needed to liquify say SAC305 or other lead free pastes without damage to th
Electronics Forum | Tue Dec 08 12:44:52 EST 2020 | janwillemreusink
Who is using two sorts of tin in one selective soldering machine with to solder pots? So then the soldering program selects the correct pot (tin). What are the risks? Adding wrong tin in the wrong pot. Mixing up the nozzles?
Electronics Forum | Thu Dec 17 18:24:37 EST 2020 | SMTA-64387520
We use both in our selective soldering machine. Training is the most important concern. As long as you have well trained operators the risk is minimized.
Electronics Forum | Wed Jan 20 07:11:01 EST 2021 | janwillemreusink
Thanks for replying... Unfortunately (or not) it isn't relevant anymore. Due to the effects of covid-19 we don't have any active aerospace customers anymore so (for now) we're only making leadfree products.
Electronics Forum | Fri Nov 07 08:12:24 EST 2003 | caldon
From my understanding (and I am not a metalurgist)Most Lead free solders can be intercahngeable.The alloy created should be stable. The issue is if you add Leaded solder to the joint. Obviously, research and testing is still pending. cal
Electronics Forum | Tue Dec 15 14:38:23 EST 2020 | emeto
I have done it different ways on different equipment. 1. Remove alloy one from the machine. Add alloy two only. and use it.For next board, do the same. 2. There are machines with separate sections for PB and PC-Free, so pots are away from each other
Electronics Forum | Thu Dec 10 12:12:40 EST 2020 | robl
Yep, done it previously with a multipot machine. Using with wirefeed to top up the pots means you only have a contamintion risk when you fit a new top up reel. Used separate nozzles for both, but theoretically using titanium nozzles would mean no c
Electronics Forum | Wed Apr 26 09:48:32 EDT 2006 | patrickbruneel
Checkout this link http://www.rohsusa.com/ any comments on this??
Electronics Forum | Thu Nov 06 09:10:13 EST 2003 | successmani
hi, NEMI recommends separate solders for reflow sodlering and wave soldering. Reflow soldering- Sn-3.9Ag-0.7Cu Wave sodlering- Sn-0.7CU Wavesoldering- Sn-0.7Ag What will happen if a mixed technolgy PCb board containing both through hole and surface
