Electronics Forum | Fri Feb 25 18:13:17 EST 2005 | davef
Your leadfree dross should float, similar to your leaded dross. It's possible you're thinking about the process for removing excess copper from the solder pot. Following the same process, with: * Leaded solder, the copper floats. So, you scoop the
Electronics Forum | Tue Feb 21 20:14:50 EST 2006 | Joseph
Dear all, Recently our lead-free samples being rejected due to very dull and sometimes grainy and very porous surface on solder joints. This samples was flow thru' the lead-free wave soldering with SN100C alloy composition. Referring IPC-A-610 D, le
Electronics Forum | Fri Apr 07 03:39:13 EDT 2006 | aj
Hi All, I am currently looking at ways to reduce Dross on our wave process. One tool that I came across was the Pulsar Solder Saver. Its hand held and kinda sucks in the dross -returns the good solder to he bath and drops the powder on top of the P
Electronics Forum | Fri Dec 01 07:41:25 EST 2006 | realchunks
For reflow, bump up your profile as hot as you can go as allowed by your paste manufacturer will allow. If you can change solder paste without too much red tape, several solder paste manufacturers make a transitional paste designed for mix of lead a
Electronics Forum | Thu Dec 21 22:17:42 EST 2006 | davef
Waving the board will sweap away the crud of black pad and to produce a solderable surface, but this surface may have too much solder and may not be very flat. This can create problems when printing paste and placing and soldering components, depend
Electronics Forum | Thu May 24 14:44:42 EDT 2007 | colormaker
We use a washer soluable solder flux for our solder wave. We then wash the boards in a dishwasher. We have done it this way for years without problems. We just got a new dishwasher and now we get residue on the solder (white marks) Anyone know of wh
Electronics Forum | Thu Jun 07 18:09:21 EDT 2007 | stephan
We noticed unsufficient soldering on some 0805 chips located between pins from a plastic bloc connector . All chips are soldered with 45� angle. Flux quantity , preheating , contact time and PCB quality was checked. Do you know any international stan
Electronics Forum | Thu Jun 14 06:41:28 EDT 2007 | davef
No, raising the solder pot temperature to 800*F will not affect affect your solder alloy. We expect that you had a fairly high level of intermetallic compound generation, but most of that would be included in the fairly high dross generation that ha
Electronics Forum | Mon Sep 29 16:02:33 EDT 2008 | scottd3
We are having problems with a specific lot of boards wave soldering. I need a way to prove the boards are bad, does anyone know a way to verify the amount of OSP coating on a board, or a company I can get to do it for me? I am using PBfree solder of
Electronics Forum | Mon Nov 24 02:18:54 EST 2008 | saintete1304
Thanks , Have you a table more complet than the Table 7-2 or a formule to calculate with a precise humidity value ? because for me it's important to know if is necessary to solder the component on the PWB with a wave solder process 8 hours before t
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