Electronics Forum: colour (Page 1 of 14)

Wave soldering problem - strange colour of the solder

Electronics Forum | Mon Jan 15 03:42:08 EST 2007 | adamp

Hi all, Last week I have noticed, that solder changed colour in our Soltec wave soldering machine. I am using normal 62Sn37Pb alloy and it's colour changed to violet/darkblue with gold areas. I know that gold colour means that, there is to much Cu i

Wave soldering problem - strange colour of the solder

Electronics Forum | Tue Jan 16 07:22:21 EST 2007 | adamp

We are using composite pallets for our boards. Regards Adam

Wave soldering problem - strange colour of the solder

Electronics Forum | Fri Jan 19 14:34:37 EST 2007 | Al Coholic

Add solder.

Wave soldering problem - strange colour of the solder

Electronics Forum | Mon Jan 15 18:20:11 EST 2007 | greg york

are you using composite pallets in the wave or oil/wax around the pump impellar? cheers greg

Wave soldering problem - strange colour of the solder

Electronics Forum | Mon Jan 22 02:23:47 EST 2007 | adamp

Thx guys, I'll check everything you mentioned, including solder pot, and solder feeder sensors.

Wave soldering problem - strange colour of the solder

Electronics Forum | Mon Jan 15 13:38:29 EST 2007 | realchunks

Check the temp of your pot. It may be getting cooler if you can notice a difference in pump height and density. You may have lost a heater element or two. You can adjust your pot chemestry, but why would you want to if your solder sample came back

Wave soldering problem - strange colour of the solder

Electronics Forum | Tue Jan 16 07:17:20 EST 2007 | adamp

I have checked pot temperature in different parts of solder pot and it looks like it is correct (250C). I have also lowered solder pot temperature and removed copper from the surface of the solder pot (operation repeated couple times). There is still

Wave soldering problem - strange colour of the solder

Electronics Forum | Tue Jan 16 18:13:25 EST 2007 | greg york

Try to process the composite pallet through the wave without any flux and view volume of smoke and if any residue is deposited in the wave when it exits. My guess is that the pallets are releasing some binders that are high boiling and this in turn c

Wave soldering problem - strange colour of the solder

Electronics Forum | Fri Jan 19 11:34:13 EST 2007 | realchunks

I thought the same thing but he did mention density. I threw out the color thing immediately - which is normal. But to NOTICE a density proble with set programs seem aby-normal. Unless one our maintenance guys got a hold of your machine for a PM.

Wave soldering problem - strange colour of the solder

Electronics Forum | Fri Jan 19 13:42:11 EST 2007 | russ

Even the level of solder in the pot can have effect on your wave height. backflow gate may have been tweaked a bit, that affects wave height, many many things affect the proper RPM required for the correct wave height. Pot may be a little lower tha

  1 2 3 4 5 6 7 8 9 10 Next

colour searches for Companies, Equipment, Machines, Suppliers & Information