Electronics Forum | Fri Sep 21 16:57:47 EDT 2007 | chrisgriffin
Harry is right. Too much moisture in the air lines screws up the air cards. These pro-heads are somewhat of a pain to calibrate. I think it is a little pre-mature to say you probably need pneumatic cards. You just need to calibrate the pro-head.
Electronics Forum | Mon Nov 19 17:40:38 EST 2007 | bbarton
No, the thicker plating and need for very high quality drilling and plating is DUE to the higher copper dissolution rate and higher contact time. As to the Sn100C material, their claims seem to confirm a "lower" copper dissolution rate, but so does A
Electronics Forum | Wed Jan 23 08:41:42 EST 2008 | operator
Actually we don't have local fume extraction at our soldering stations. We have 4 going at a time. I was researching last night and found this website. http://www.engineeringtoolbox.com/air-change-rate-room-d_867.html It indicates 10-15 air changes p
Electronics Forum | Mon May 26 07:52:06 EDT 2008 | kenshiikeda
Hi mates, I encounter a problem on PCB after going thru the LeadFree Solder Wave. It shows so much dirt or dross on the PCB surface. I have attached the picture for more details. I have tried to scope out suspected solder dross and oxidedized solde
Electronics Forum | Thu Oct 23 13:05:12 EDT 2008 | slthomas
If you're questioning their motivation for testing accurately, I'm sure they would *love* to sell you stuff to balance your alloy composition ratios or just replace all of your solder outright. IOW, I don't think you need to worry about them paddin
Electronics Forum | Wed Dec 10 09:29:59 EST 2008 | rgduval
Oops...just noticed you were referring to wave soldering. We'd still suggest a water-soluble flux, instead of the no-clean; especially at wave soldering. Also, checking pre-heat temps, and dwell time on the pot. Is the wave a chipper wave? If not
Electronics Forum | Wed Feb 04 08:28:07 EST 2009 | milroy
Hi, I have done conversion from SAC387 to SCS7 with great results on process improvement with low cost. I see only the melting point is higher but still the solder pot temperature settings is 250�C to 260�C as SAC. If somebody think the temperature
Electronics Forum | Mon Mar 23 13:21:32 EDT 2009 | joeherz
We have recently installed a selective solder machine that is running SN100C alloy. Based on the fact that the pot maintenance is done inside the equipment where adequate ventilation is present and we aren't dealing with lead, I don't see the need f
Electronics Forum | Tue May 26 06:56:40 EDT 2009 | xinxi
Hi! From your post, it seem like the wave did not really touch the component. You probably need to get the both wave height correct and that it hits the component.It is normal for solder to come through the PCB when using chip wave. The through-hole
Electronics Forum | Thu Aug 06 19:20:09 EDT 2009 | boloxis
easy, just dip the ICs on a very weak solution of Nitric Acid, by very weak I mean like drops of Fuming Nitric acid in a half full DI water beaker. Place the beaker on a Ultrasonic bath and dip/shake the ICs in the solution in 5~ 10 seconds only. You
