Electronics Forum | Tue Aug 02 22:49:55 EDT 2005 | davef
IPC-A-610D Section 5, shows a variety of photographs of: * Good lead-free solder connections * Lead-free soldering anomalies Hot Tear / Shrink Hole is one such anomaly. This shrinkage effect appears primarily on wave-soldered joints, but can also
Electronics Forum | Mon Aug 01 20:02:20 EDT 2005 | Joseph
We use SAC305 and top side particular joint temp. is 110 deg C, and the terminal finish for that particular lead is pure tin. It look like hot tearing at the primary side of PTH.
Electronics Forum | Wed Aug 07 11:36:19 EDT 2013 | rway
By "dark grey color" do you mean with the histogram? Red or black maybe, but grey? Are you using a color camera? Can you use a reverse image? Does a bare unsoldered joint appear bright or reflective under red lighting? You could look for a low wh
Electronics Forum | Thu Aug 08 11:58:25 EDT 2013 | rway
I am not that familiar with the older systems. The software should be supported on both old and new alike unless you are limited by the operating system, but the camera will obviously have a lower resolution and perhaps the filtering is not quite as
Electronics Forum | Thu Feb 08 09:07:22 EST 2001 | Hussman
OK, without knowing the specifics, why does everyone blame the oven? Most solder balls occur around R's and C's in almost every shop I've been to. The best place to start looking is the screen printer - not the oven. Sure the oven is the last proc
Electronics Forum | Fri Jan 10 11:36:03 EST 2014 | rgduval
One thing you could check/monitor is the temperature in the pot/wave. As boards run across the wave, they will cause fluctuations in the wave temperature. The heaters should hep with minimizing this; but, if you're running a lot of boards in quick
Electronics Forum | Mon Nov 11 11:42:26 EST 2002 | MikeF
Like Mark, I'm guessing your problem is with SMT parts on the top side, the solder is re-melting and some of the parts are moving around during when the board is being wave soldered. When I had some training on thru hole wave soldering way back when
Electronics Forum | Fri Jul 28 09:30:04 EDT 2017 | proceng1
We only use it for resistor color code and most other comps it just checks for presence. No solder joints.
Electronics Forum | Wed Jul 04 13:28:00 EDT 2012 | davef
Nice picture. What's that snot on the solder in the bottom left of the picture? I'd guess that this ribbon cable wants to be hot bar soldered.
Electronics Forum | Thu Jul 05 21:01:57 EDT 2012 | davef
Hey, I'd try it. Well maybe not me personally, but one of the peeps, one with some touch and skill. Buying, setting-up and using a hot bar soldering machine is not rocket science, but who needs it, if you don't have to?
