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Electronics Forum | Sat May 31 09:44:56 EDT 2008 | gregoryyork
looks like the board has gone through and not actually fluxed properly,trying hand applying and it should fix it. IF it still occurs put the pallet through without pcb and without flux and see what residues come off in the wave. residues you are seei
Technical Library | 2006-09-06 15:25:43.0
Transition to lead free solder stations in electronics packaging has raised issues regarding process, metallurgy and reliability m assemblies. In regards to soldering, lead has been used for thousands of years in a wide range of applications. Conventional eutectic or near eutectic tin-lead solder compositions have been used for virtually all soldering applications in electronics assembly for the last 50 years, In the electronics assembly process, a majority of commercial rework applications and some low density board assembly processes require hand soldering stations (...) This paper describes an attempt to quantify both qualitative and quantitative data that can aid in the evaluation of lead free soldering irons.