Electronics Forum | Tue Sep 25 19:26:39 EDT 2012 | caurbach
So, I just learned that alpaca isn't just a cousin of the llama, it's also a Cu/Ni alloy (imitation silver). Creeped me out at first... When you say "poor filling and no solder", are you referring to wetting problems? Do you have any photos you co
Electronics Forum | Thu Dec 07 11:49:28 EST 2006 | K
We currently have RMA and WS soldering processes here and do batch cleaning for both. We are experiencing some capacity issues and are interested in looking at an IN-LINE aqueous wash. My experience with in-line wash is only with WS. 1. Since RMAs
Electronics Forum | Mon Sep 24 18:03:43 EDT 2012 | rmazenha
Hi, i am using AIM 264-5 No Clean flux for soldering alpaca pieces on PCB boads, but i am having problems: poor filling and no solder. I am using SAC 305 lead free solder. I have tried to change flux pressure, time, ammount as well solder speed an
Electronics Forum | Fri Jun 29 12:47:25 EDT 2012 | deanm
We are experiencing widely varying First Pass Yields for selective soldering. Some boards are near 100% while others are less than 50% depending on the pitch and general complexity of the board. Question: If you are running 100 boards through your s
Electronics Forum | Mon Apr 18 12:14:39 EDT 2022 | proceng1
As far as hole fill, as was stated above, class 2 only requires 50% up-fill. In order to get better up-fill on the initial pass, you may need to consider more pre-heat. Also, better application of flux. Are you using a drop jet, or a spray? You
Electronics Forum | Wed Dec 19 10:33:58 EST 2012 | emeto
I had a connector like this and here is my recommendation: 1. Flux type(I like better alchohol based flux than water based) 2. Try higher soldering speed(when I say higher I mean several times higher) Goodf Luuck!
Electronics Forum | Wed Dec 12 16:12:58 EST 2012 | tombstonesmt
Glad to hear we have more Jade users on the forum! What kind of flux footprint is your fluxer leaving on the board? You called it a "spray" fluxer.. We use the MIC fluxer that functions like a jet fluxer. Do you flux each individual lead or do a
Electronics Forum | Mon Mar 17 04:31:52 EDT 2008 | d0min0
Hello, tried searching the SMTnet archives, but not yet a clear answer - maybe there is not a one yet ? ;) last discussion I found is few years old so maybe there is a fresh view on that? Q: we want to prove that our proces is "clean" we use SAC30
Electronics Forum | Wed Apr 13 12:10:47 EDT 2022 | winston_one
Hello! We have a strange effect. Some pads of big trough-hole DDR slot just dessapear. Initialy it was soldered with selective soldering process (leaded, 290 degrees, ImSn finish, very short storage). Then some connectors with poor barrel fill we hav
Electronics Forum | Mon Dec 10 13:26:40 EST 2012 | dyoungquist
We are using our selective solder machine to solder a backplane with sixteen (16) 4x48 pin 0.080" connectors. Our first pass yield is about 85% meaning that 85% of the connectors come out with no bridges. Not quite as fine pitch as your connector a
