Electronics Forum | Thu Apr 15 09:34:00 EDT 2010 | sudhir14
Hi, Can any one help me for how to reduce the dross formation in wave soldeing process , currently we are getting very heavy dross formation in process
Electronics Forum | Mon Apr 19 14:27:16 EDT 2010 | davef
Ralph Woodgate says that pump speed is the biggest driver to dross production
Electronics Forum | Thu Apr 15 10:09:55 EDT 2010 | davef
Dross formation rates for SnCu and SAC are roughly 2.5 times the rate for SnPb (Hwang et al., 2004) Methods for reducing dross are: * Lower pot temperature * Run pump speed slower and only when soldering * Check solder contaminants to BS219, ASTM
Electronics Forum | Thu Apr 22 09:39:08 EDT 2010 | baildl632
Davef, who is Ralph Woodgate?
Electronics Forum | Thu Apr 22 10:38:40 EDT 2010 | baildl632
Thanks! I've been re-inventing the wheel again!
Electronics Forum | Sat Apr 24 08:37:07 EDT 2010 | sudhir14
HI, Can pl. provide the some detail on recomanded pump speed
Electronics Forum | Mon Apr 19 11:36:10 EDT 2010 | baildl632
We installed a fixed distance optical sensor above the conveyor rail and "wired it" throught he machines terminal bus to cut the pump on only when a board was present at the pot. We also installed a timer in line so the pump would only stay on long e
Electronics Forum | Mon Apr 26 10:29:49 EDT 2010 | davef
Set pump speed so that the board is 1/3 to 1/2 immersed as it goes through the wave.
Electronics Forum | Thu Apr 22 09:57:11 EDT 2010 | davef
Ralph Woodgate is the 'god of wave soldering process control.' We believe he is now retired, but in olden times his presentations at SMTA meetings were 'DO NOT MISS.' We imagine you can find his books on the used book market. Look here: http://use
Electronics Forum | Mon Apr 26 09:54:59 EDT 2010 | baildl632
What type of wave machine? Does your machine have a pump speed dial? Does your machine have the ability to raise and lower the pot? Raise pot to as close as possible to the pallets/boards and make sure they can pass over the nozzle without hanging o
