Electronics Forum | Mon Dec 20 16:34:15 EST 2004 | steve
Customer has tried OA and NC alloy solder pads may be nickel Chromium. Non-wetting issue. Scraping pad alloys a bit of adhesion of solder but no intermettalic bond. Any suggestions?
Electronics Forum | Wed Mar 09 12:46:36 EST 2005 | Patrick
MarcA: Could you expand on the results you observed about improved wetting in a nitrogen environment? I am very interested to learn about the impact that nitrogen had. Was there an improvement in the cooling zone with nitrogen? Patrick
Electronics Forum | Tue Feb 15 06:30:23 EST 2005 | Hannu
Hello all Is somebody doing leadfree soldering with a dip soldering machine? What kind of alloy are you using? What temperature are you using? Any problems with wetting/soldering quality? Regards Hannu
Electronics Forum | Thu Feb 17 04:09:19 EST 2005 | greg
The solder adheres to the lands very well so i don't think that problem is with solderability of the PCB. Not wetting to the 0805 terminations. When the problem appeared with the 0805 we chenged the supplier. But there was commnon element Pb-free te
Electronics Forum | Thu Feb 17 15:00:25 EST 2005 | austinj
I am working on fixturing to keep the pcb/panel from "floating" in the oven. The problem is cold solder/non-wetting on all components. My thoughts lean towards the thin pcb not retaining the "preheat temps" for proper soak/reflow. Any thoughts about
Electronics Forum | Mon Feb 28 12:50:20 EST 2005 | russ
If you don't have Plated through holes you will not get any hole fill! There is nothing for the solder to wet to. Problem solved? Russ
Electronics Forum | Tue Mar 08 14:32:01 EST 2005 | jdumont
A wave machine mfg we are looking at is using this gas nitride treatment on all the 'wetted' parts to prevent the tin errosion of the underlying metal. Does anyone have any experience with this type of process. Any reliability/longevity data? Thanks
Electronics Forum | Fri Apr 01 18:41:09 EST 2005 | KEN
Agreed. In my experience you will not wet solder to: Platinum Iron Constantine Tungsten Carbide titanium Chromalloy allomega alloy 303, 304 ...and the list goes on and on. You will either need to weld or braze. These are high temperature prcesses
Electronics Forum | Mon Apr 04 09:30:49 EDT 2005 | russ
Andrew, we need a lot more information to help. 1. what is the open caused from? bemt pins, non-wetting, board bowing, or no paste deposited. 2. What is your current stencil design? 3. What does this connector look like and what are the pins? Rus
Electronics Forum | Wed Apr 06 11:54:24 EDT 2005 | Indy
did you try using double header connector pin of a different lot? Indy
