Electronics Forum | Fri Dec 17 10:24:23 EST 2004 | rlackey
Hi Matt, What printer are you using? you may be able to get an envronmental unit for it to keep the paste cooler & at the right humidity for longer, thus extending it's effective window. Cheers, Rob.
Electronics Forum | Tue Jun 28 13:23:56 EDT 2005 | Bob Gilbert
Matt, Try a cooler profile by simply speeding up the conveyor by 10%. The difference may be the temperature the pads are reaching between the HASL boards and the Au boards. Are they the same thickness?
Electronics Forum | Fri Jan 27 14:13:08 EST 2006 | Chunks
JOTs works well. Has built in coolers. Also realigns your boards back to an edge belt conveyor. Very well designed.
Electronics Forum | Tue Feb 12 14:18:48 EST 2008 | pjc
Without forced exhaust your oven will struggle to regulate zone temps, especially if a cooler one next to a hotter one. There should be no damage to the oven, just working harder to regulate itself.
Electronics Forum | Thu May 23 11:57:21 EDT 2013 | dyoungquist
We run the same profile for both sides. We also run the bottom temp 10C cooler in the final 2 heat zones.
Electronics Forum | Wed Jul 04 03:59:10 EDT 2018 | oxygensmd
I had similar problem before. I cleaned the PCs (both machine and station) and replaced the cooling paste on the CPU cooler. After time the Control was able to shut off - before the issue solved, we used the safety knob to cut the Control.
Electronics Forum | Wed Jul 04 04:04:19 EDT 2018 | oxygensmd
One more thing. We had a card defect during the control had this problem, on of TBF card burned out. But I think you need to check the thermal paste in the PC - clean the cooler and the filter first.
Electronics Forum | Wed Nov 29 16:52:35 EST 2006 | techgonecrazy
OK... My problem with BTUs is that they are getting stopped up because the flux is not going from vapor form to liquid form; instead it is crystalizing (looks like a blizzard took place in the flux box and chiller boxes) and clogging up the flux box,
Electronics Forum | Wed Aug 09 12:11:44 EDT 2023 | thecolonel97
We are currently experiencing an issue with one of our reflow ovens producing large amounts of flux crystals in the end of zone 12 and entrance of cooling zone. This has been going on for roughly around 4 years now, we are using Senju M705 lead free
Electronics Forum | Wed Dec 08 11:12:07 EST 1999 | Brian W.
I think the number is about 80 degrees C. If the board is hotter than that, glue problems start to occur. John is right. The adhesive starts its cure process and its release from the nozzle is inhibited. Fans and coolers are one way yo go. If yo
