Electronics Forum | Wed Jul 10 16:34:23 EDT 2013 | hegemon
Preheating is critical in Vapor Phase Soldering. One trick that is done is to use the "soft vapor" area just above the soldering vapor, some machines can pause just before going into the soldering vapor. Using that pause above the vapor to continue
Electronics Forum | Wed Jul 10 14:29:27 EDT 2013 | isd_jwendell
You wouldn't have a very good profile if you went straight from room temp to vapor temp (_-). The chamber should preheat the board before using vapor to melt the solder.
Electronics Forum | Wed Jul 10 14:14:21 EDT 2013 | benreben
hi all, i have purchased an used vapor phase and i can't make a constant profile. the profiles depend on the time i wait between two batch... the only difference that i include is the chamber temperature i don't understand why the chamber temperat
Electronics Forum | Mon Aug 12 15:56:13 EDT 2013 | pjchonis
Vapor phase soldering systems by Asscon are characterized by special designed heating modules. The thermal mass of the heating modules is designed so that a completely delay-less and direct regulation of the heat/flow/energy transfer to the soldering
Electronics Forum | Wed Nov 17 09:28:40 EST 1999 | Steve Z
Hello, I am new to the SMT area and I need to know what a "good" vapor phase reflow profile should look like. The fluids we are using have a BP of 45 C and 219 C. Thanks,
Electronics Forum | Fri Jul 16 15:30:22 EDT 1999 | SMTASSY
Perhaps a little hard to find but is there anyone who uses a vapor phase process to solder populated card with BGAs. I am interested in the success rate of such a process. It is obvious that the throughput is reduce vs a convection oven but still thi
Electronics Forum | Fri Jul 15 15:19:16 EDT 2011 | dan_ems
Have somebody experience with profiling vapor phase? I must buy a profiler and is very hard for me to decide what to buy. Please help me with a advice. Thanks you.
Electronics Forum | Thu Dec 22 15:36:03 EST 2005 | CC
In general two step temperature reflow process requires minimum 40 deg C delta to be sucessful. We are not using vapor phase soldering but we have similar situation when we change to SAC lead free solder for PCB component population and secondary swe
Electronics Forum | Thu Dec 22 12:05:37 EST 2005 | Tony
Currently we are using a 2 step vapor soldering process to manufacture our std. lead soldered parts. The first step was done with a ls240 vapor fluid and the second was done with a ls200 fluid. Using a 221 deg C sn95/Ag5 solder for the first step a
Electronics Forum | Mon Jul 18 14:37:33 EDT 2011 | ldavis
We use the same profiler for convection and VP. For VP you just have to be very careful as the thermocouple wires must travel through the machine so cannot get "snagged" on anything as they go in or come out.
