Electronics Forum | Mon Dec 23 14:36:16 EST 2019 | tey422
There are times you might want to move the job from one line to another in the middle of the run; ie. machine down. Currently, our SMT is set up like yours, line#2 is just for simple/prototypes jobs. It's easier for us to moves the job from line#1 to
Electronics Forum | Thu Dec 26 17:21:18 EST 2019 | rgduval
If you're going to vent through a single exhaust/fan combo, I would recommend spending the money, and getting an HVAC company in there to size the exhaust fan, and duct work. It'll pay dividends for you in the future. We did that at a previous comp
Electronics Forum | Fri Dec 27 17:13:53 EST 2019 | rhormigox
Thank you for the answers. The paste is as spec No-Clean https://www.chipquik.com/datasheets/TS391SNL50.pdf I'am writing them too. For the excessive cooking not sure, the oven sensor (that I think is about right) looks I am close to the profile, bu
Electronics Forum | Mon Dec 30 12:48:18 EST 2019 | rgduval
Keep in mind that the oven temperature does not, necessarily, equate to the board temperature. The thermal characteristics of the parts and copper will cause the board temperature to be different, sometimes significantly, than the oven temperature.
Electronics Forum | Tue Dec 24 03:51:35 EST 2019 | richardcargill
There's a place for both methods, but the advancements made year on year in 3D printing technology and quality give it the edge I reckon. We use 3D printing a lot and do it 'in house'. There's very little waste compared to machining a part from a bl
Electronics Forum | Fri Dec 27 11:42:18 EST 2019 | emeto
I could not see pictures of your board - please attach one or two. So to answer your questions: 1. wave should not overflow over your board - mostly we use pallets as carriers to protect the assembly. 2. Solder dross is caused because your wave is no
Electronics Forum | Fri Dec 27 12:12:29 EST 2019 | slthomas
As has already been mentioned, black residue is usually either from dross or just a dirty pot, pump, baffles, etc.. I also saw that maaaany years ago in a system that used a flawed oil intermix "feature" but hopefully those systems are long gone.
Electronics Forum | Fri Dec 27 16:12:54 EST 2019 | anteiv
thank you for reply here is picture of the board https://imgur.com/a/i2MfFBw on the bottom are pins/components which height is about 3-4 mm from bottom of the board we had to increase distance of board from nozzle to make clearance and we increas
Electronics Forum | Tue Dec 31 02:33:57 EST 2019 | anteiv
thanks again for reply, we have now configured speed of traveling so pcb can travel through preheat with one speed (call it v1) and through wave with other speed (call it v2). Lenght of preheat elements is fixed, so with speed v1 we can change pr
Electronics Forum | Tue Dec 31 02:04:19 EST 2019 | sssamw
From the picture, I cannot see clearly solder ball violate electrical clearance or cause a short, maybe it is. What I can see is the solder paste has some misalignment although it doesn't printed in solder mask area, but actual position will reduce
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