Electronics Forum | Tue Oct 15 09:04:06 EDT 2002 | sueph
Dear Pete, thanks for the reply. My calibration procedure says pretty much what you said: variance of 10 degrees F. I am having a temp. swing of close to 80 degrees F. and no matter how I try to situate the thermocouple back into the preheater, I ca
Electronics Forum | Mon Oct 21 11:49:20 EDT 2002 | sueph
Mike, We are currently wave soldering several assemblies with with a lot of ground plane. The soldering handbook we have in house suggests a preheat temp for metal core multilayer boards of 230 to 270 degrees F' (110 to 130 C'). It was scary at fir
Electronics Forum | Mon Oct 21 18:31:45 EDT 2002 | MikeF
Mike, If your wave solder machine doesn't have enough preheat capacity you can put the board in an oven and warm it part way before you put it into the wave solder machine. This works best with a spray fluxer, as a warm board will collapse the foam
Electronics Forum | Fri Nov 22 12:34:14 EST 2002 | timreisenleiter
I am in the process of sourcing and ordering a BGA rework station. I only have exprerience with the OK-Industries (Now Metcal) BGA-3500 BGA rework system. Any experience/input on other comparable systems would be much appreciated (Pace TF3000, Air-
Electronics Forum | Mon Feb 03 23:49:00 EST 2003 | Dreamsniper
Hi, Has anyone who's using vapor phase process able to help me troubleshoot tombstoning? I raed about uneven forces during reflow due to misalignment, pad design, paste volume deposition unevenness due to dirty stencils, worn stencil printer parts s
Electronics Forum | Mon Apr 12 10:39:48 EDT 2004 | Ron Herbert
Correct preheating of the assembly is critical. Check with your flux manufacturer regarding the recommended topside pcb temperature as it enters the first wave. It is important that this temperature be achieved without burning the flux on the bottom
Electronics Forum | Wed Apr 07 09:54:32 EDT 2004 | Dreamsniper
Hi Guys, Can anyone help me in providing their experience in process related problems with regards to the above equipment? I noticed that it's slightly different with the wave soldering. Wave Process: Apply Flux, Pre-heat then Solder Selective Sol
Electronics Forum | Thu Jun 03 18:10:28 EDT 2004 | g2garyg2
It sounds like you will need to pre-heat the aluminum beofre using even a laser to solder this type of application. While lasers are great for many applications, especially those that have challenging keep out areas, thermal mass issues (with approp
Electronics Forum | Fri Aug 13 19:59:48 EDT 2004 | Hi CJ.
Don't be discouraged about the Zephyrtronics Air Baths from Chris' comments. I'm sure he means well, but I've seen these units being used by people who swear by them. You might also look at the APE preheating units and the Zephyrtronics...but you sh
Electronics Forum | Wed Jul 27 03:50:51 EDT 2005 | aj
Crishan, I am not familiar with the machine you mentioned. Do you use selective solder pallets through a wave process or is the machine a selective soldering machine (ie. where the board is moved to the solder fountain) No matter what the process