Electronics Forum | Thu Jan 31 09:37:03 EST 2008 | jola
Hello. We have currently a big problem with our Reflow owens getting very dirty very fast. It's like a thick layer of "dust" on all parts in the preheat and the beginning of the cooling zoon. We dont have that all the time and it's seems to be from b
Electronics Forum | Wed Mar 12 11:28:06 EDT 2008 | gregoryyork
Lead Free is probably worse as it contains something like 25% more flux by volume than Leaded. But is unusual as No Clean organics usually volatise off and rosins are non volatile so should not accumulate readily unless mixing with other gases in the
Electronics Forum | Mon Feb 04 07:34:53 EST 2008 | cyber_wolf
Fuji's (CP's and QP's) are probably not the best fit for what you are talking about. However, it can be done.You will just need to become creative on how you are doing changeovers. You need to incorporate the "pit crew" mentality. Also, if you are lo
Electronics Forum | Wed Feb 06 00:43:37 EST 2008 | jmelson
Well, as usual, you can't trust ANY documentation to get it right! I have a CSM84, model PA1306/20, the last model with DC brush motors. I have the service manual for the machine, it has schematics of much of the machine, but skips the servo amps a
Electronics Forum | Thu Feb 07 12:18:41 EST 2008 | tonyamenson
Does anyone use or have any simple wave/reflow oven exhaust monitors with a visual check (LED). I was going to design something crude resembling a fan with an electric winding (electric motor of sorts)and a load (resistor maybe with a transistor if
Electronics Forum | Thu Feb 07 13:46:07 EST 2008 | slthomas
I would probably try to get my boss to spring for a digital anemometer (air velocity meter) and figure out what my velocity needed to be to get the specified airflow. Then just check it daily before production starts and when it starts to slow down,
Electronics Forum | Tue Feb 12 17:57:42 EST 2008 | chef
I must ask the silly question- are you sure you deposited the correct amount of paste? Depending on aperature design-the voiding could come from a stencil that has its holes partially built up with old paste. If paste volume is guaranteed, then what
Electronics Forum | Thu Feb 14 23:37:38 EST 2008 | operator
That is bizarre. I would have to say that you need to do a test on the PCB to test solderability with an iron like mentioned before. If you don't find that the pads are contaminated or masked over lightly and the pads do take solder effortlessly, you
Electronics Forum | Tue Feb 19 09:41:26 EST 2008 | slthomas
ECD sells the MOLE, and they sell both the Oven Rider and the Wave Rider to accompany it. The thing is, you can profile both an oven and a wave machine without either if you're willing to just solder your thermocouples to a board. The nice thing ab
Electronics Forum | Tue Feb 19 12:41:20 EST 2008 | patrickbruneel
Yes dendrites can cause electrical shorts. The first stage of dendritic growth is a dark fern like pattern which reduce surface insulation between anode and cathode. In a more advanced stage the ferns transfer the plating metals of the conductors and
