Electronics Forum | Thu Nov 18 08:09:49 EST 2010 | vetteboy86
That was our first course of action, and we cannot get solder to adhere to the pins using an iron with solder roll, or by dipping them in a solder pot. We have added flux to the leads as well. At the moment our only success has been with the use of
Electronics Forum | Fri Jan 14 16:55:31 EST 2011 | tombstonesmt
On our Pilarhouse Jade we use nitrogen to cool the belt that drives our solder pump as well as keep the amount of oxygen to a minimum in our solder pot to reduce dross.
Electronics Forum | Thu May 03 10:14:10 EDT 2001 | davef
Now, I'm not going to talk solder balls, in a traditional sense. I have an image of bilbous, globs of excess solder near the ends of PTH leads. If that's not what you have, ignore the following [and help us understand your situation better] ... Yo
Electronics Forum | Fri Sep 17 15:01:05 EDT 1999 | Dave F
| | We have some SMT components with gold plated leads. They're actually LCC led packages. A good solder alloy to use would be Indium / Lead to reduce tin dissolution into the gold and avoid the resultant brittle intermetallic compound. However, a re
Electronics Forum | Thu Mar 30 11:07:41 EST 2000 | Wolfgang Busko
> the dirty patch appear seems to be a bit powdery on top of stickiness > the "harden" dirt in the solder pot or at pump are ususally "knock" out while cleaning.. is that thorough enough..? Assuming that 1) is true it might not be thorough enough. On
Electronics Forum | Wed Mar 05 13:12:33 EST 2003 | msivigny
Hello davide, the biggest advantage you'll find with a complete N2 tunnel is the minimization of oxidation during board preheating. Using only an inerted solder pot allows the oxidation to build up throughout the preheat stages and introduces contami
Electronics Forum | Mon Jan 22 09:28:57 EST 2001 | Adam
The assembly is HASL finished. The colour of the solder mask is green, ( sorry I dont know the technical name ).The flux is No Clean (Koki JS3000)which is seeing a preheat temp between 90-100degCel. The solder pot is set at 250degCel and is 63/37.
Electronics Forum | Fri Jan 14 09:36:49 EST 2000 | Richard
If the gold fingers are pad types which plug into expansion slot connectors, I have used a titanium guard attached to the wave conveyor over the solder pot, which allows the PCB to connect to the fingers but masks the solder from the gold pads along
Electronics Forum | Wed Aug 19 14:06:14 EDT 1998 | Wayne Bracy
Steve Not too sure how much help this would be, but you might want to check with Exselect Engineering about solder pots. You might find what you need, new and at a very good price. Will send you an email with additional used equipment locations. W
Electronics Forum | Wed Dec 15 10:37:55 EST 2004 | gopinath A
Thanks Dave, That answers my question. I didn't think either that the qty of gold in platings would be enough to contaminate the solder pot. I wanted to make sure that leach test is a valid test for gold finishes. Gopinath@mcl.com