Electronics Forum | Sat Apr 04 19:17:23 EDT 2015 | sync40
Hello to everybody. Does someone have some experience or review in the past with roller tinning machines? I mean low cost machines with two rollers and a molten solder tank. The finished soldermasked PCB pass through the rollers (like a lamination)
Electronics Forum | Wed Apr 06 08:27:12 EDT 2011 | kaschliman
Our two component suppliers use 99.5Sn/0.5Cu and 97Sn/3Ag solder (respectively) for tinning their leads. We use 98.9Sn/.66Cu/.33Ag solder in our wave solder machine. Is there any significant advantage to either tinning process regarding solderabili
Electronics Forum | Mon Feb 13 12:41:38 EST 2006 | masrimhd
Hello, I know for sure that using lead-free technology in conventional tin-lead machines makes a lot of problems. But I wonder if we can use conventional tin-lead alloy and components with a lead-free machine! Is it possible? Does this imply any s
Electronics Forum | Tue Feb 14 03:58:17 EST 2006 | Rob
Yes, it's fine - as Pete says you have to replace certain parts & either get the pot recoated or a new one. We ran a "Lead free" 6622C from Vitronics Soltec on Tin Lead, then it was cleaned up, recoated and loaded with a no-lead alloy with no proble
Electronics Forum | Sat May 17 09:12:50 EDT 2008 | davef
Lead-free means expensive tin. Tin is an excellent solvent. So, metal parts in contact with molten tin must be expensive enough to resist that nature of tin. To learn more about this: * Search the fine SMTnet Archives * Look here: "Liquid Tin Corrosi
Electronics Forum | Mon Feb 13 13:26:21 EST 2006 | pjc
If you're asking about wave solder machine, yes you can run Sn/Pb in a "Pb Free" machine. The concern is that when its time to run Pb Free you're going to have to remove all the parts from the solder pot to remove all the Pn/Pb solder residue from po
Electronics Forum | Mon Jan 31 12:24:24 EST 2000 | Dave F
Robert: Several points: 1 Dross is a mixture of various things with no "fixed" composition: � The obvious things are metal oxides mixed with metal and this can vary in color with temperature and composition - remember some intermetallic oxides form
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.
