Electronics Forum | Tue Jan 16 18:18:46 EST 2007 | greg york
Sorry that answer never really gave you the reason and ways to resolve. Reason - most composite pallets are only good up to 180C so thermal excursions at 250 or even 270c lead free kill them. Try to stay on top of cleaning as well and some pallet mat
Electronics Forum | Fri Jan 19 10:43:28 EST 2007 | jimmyjames
You guys are all joking right?! There aren't any contaminates in your solder, the different colors on the surface are completely normal and even expected. The top layer of solder oxidizes and the structure of the surface resembles crystals, refract
Electronics Forum | Mon Jan 15 11:41:56 EST 2007 | davef
Questions are: * Does the component take solder when you dip it in the solder pot to test the solderability of the leads? * Can you get full barrel fill when wave soldering a bare board? * Is your flux reaching the top of the board through the hole b
Electronics Forum | Mon Jan 15 13:12:18 EST 2007 | realchunks
So others can solder the same board and part but you can't. Dipping the legs in flux doesn't help. Then it's either your pre-heat or wave. Measure your pre-heat and compare to others or flux mfger. Do you have chip wave or something like an Omega
Electronics Forum | Tue Jan 16 07:59:36 EST 2007 | tk380514
we worked out that the wave soldering cassettes Duratstone material takes alomst 35 degree away from the surface of the pcb, and the speed is already too slow it should be over 1.0 - 1.8 meters a minute but its now already 82 cm a minute, in order to
Electronics Forum | Mon Jan 15 15:18:13 EST 2007 | jaimebc
We have an oMniflow 7 as well, and looking at the calibration procedure, it indicates that turning the pots ( total of 5 pots. 4 on the lower board and one on the upper board )fully counter-clockwise is the FIRST step of a series of tests. Then you w
Electronics Forum | Mon Jan 15 16:14:15 EST 2007 | leemeyer
This is a used oven, new to us. No product has been setup on it yet. We were establishing som baseline profiles and noticed that the actual profile read didn't even come close to our optimal profile. Further investigation proved that the belt was to
Electronics Forum | Mon Jan 15 21:54:19 EST 2007 | raychamp007
Dear Friend, Our SMT Production & component ware house RH currently control limit set to 40%RH - 60%RH, but not always achievable, the RH reading measurement are between 38%RH -65%RH. J-STD-001D recommend 30%RH - 70%RH. However it is only a recommen
Electronics Forum | Tue Jan 23 12:22:12 EST 2007 | Grant
Hi, I ran a clean room once, and the humidifiers were built into the exit air ducts, and controlled by a humidity control unit that kept things at 60%. We were loading VHS tapes, and needed to keep humidity at that level or static discharges caused
Electronics Forum | Wed Jan 17 15:13:24 EST 2007 | jaime39
When placing the part to be reflow try applying heat to the board from the secondary side until the primary side has a temperature of about 130 degrees celcius. Following this procedure it should minimize the heat exposure of the part being soldered.
