Electronics Forum: tin-lead solder (Page 1 of 43)

solder strength

Electronics Forum | Thu Sep 08 14:25:20 EDT 2005 | kris

what did you reprofile to ? did you increase the peak reflow temperature ? can you tell form what to where ? I bet your vendor told you process guys that it was " drop in" for a tin leaded plated part.

Selective solder nozzels

Electronics Forum | Wed May 03 11:12:08 EDT 2006 | samir

Iron huh? You sure about that? We have the ERSA Versaflows and our nozzles are made out of ST37 Tool Steel. There is an "American equivalent" to this grade but I forgot what it is. You'll have to google it like I did. Anywho, Tin or Tin-Lead sold

Re: High temp solder

Electronics Forum | Wed Aug 30 16:00:42 EDT 2000 | Dave F

Russells: You can mix the two solders you mentioned, assuming by "96s" you meant "96Sn / 4Pb". If you heat the two tin / lead alloys to a liquid state, you�ll form a tin / lead solution with properties different from either of the two solders. The

Thermal cycles of tin lead solder in the Wave

Electronics Forum | Tue Oct 04 11:42:07 EDT 2005 | Bob Leible

I was wondering if anyone has studied the effects of tin lead solder in the wave. If we leave the same solder in the solder pot, how many COMPLETE cool downs and start ups can the solder go through before it begins to break down? Please let me know

Thermal cycles of tin lead solder in the Wave

Electronics Forum | Tue Oct 04 12:49:59 EDT 2005 | patrickbruneel

The amount of times the tin/lead solder can be melted and solidified is unlimited and the heat cycles do not affect the solder characteristics. The only reason for changing the solder pot is when impurities are at or over the maximum levels.

Wave solder edge covers

Electronics Forum | Wed Jun 30 10:37:11 EDT 1999 | Boca

We are wave soldering some fabs with a lot of unmasked trace area along the edges. The trace area is solid copper covered with tin / lead, no masking, no components along the edges, same on solder side and component side (goofy board design). Inste

2% silver solder paste

Electronics Forum | Tue Apr 13 08:08:33 EDT 1999 | Rob Palson

We process both tin/lead plated boards and gold plated boards in our surface mount group. I have used Sn62/Pb36/Ag2 solder paste on all gold plated boards to help prevent gold scavaging. To reduce the amount of different solder pastes we have to bu

No-Lead solder defect - No solder on pads

Electronics Forum | Mon Dec 22 19:43:43 EST 2003 | Dean

I have seen this affect on Immersion Tin and OSP. 70 to 90 % of the solder wicks to the lead and forms a "single" homogenous solder mass. This even though the pad was 100 % covered with paste... Evaluated different solder paste...did find variatio

Use and Restrictions of solder containing lead

Electronics Forum | Tue Jun 03 18:34:22 EDT 2003 | Kris

Hi, There have been other studies where it was found that lead-free soloder joints are more reliable than tin-lead solder joints irrespective of test conditions. In fact the automotive industry has been using Sn/Ag for underhood applications for a

Fresh solder generating more dross

Electronics Forum | Wed Sep 16 08:46:50 EDT 1998 | Chrys

Hi Folks, Need to draw upon the vast expertise in this forum... Whenever you fill a new wave solder machine with fresh bar solder, it seems to produce more than the normal amount of dross for a few weeks. I always understood this to be the solder "c

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