Electronics Forum | Fri Dec 01 08:58:05 EST 2006 | russ
orientation is also a factor here, So what is the pitch of these connectors? the lead length? the hole dimensions? surface finish? and what type of wave and flux are you running? Shorts are pretty easy to eliminate if everything is of adequate des
Electronics Forum | Tue Aug 28 23:47:12 EDT 2007 | crashoveride
Blows holes are usually caused by improper amount of flux applied to the boards prior to WAVE process and, in some circumstances, can be related to the preheater settings.
Electronics Forum | Mon Sep 10 11:13:47 EDT 2007 | russ
Aren't the solder balls a result of the blowholes? you know the solder that came from the blowholes is now the solderballs on the resist! hahaha :-) Russ
Electronics Forum | Thu Sep 27 09:28:42 EDT 2007 | jgrootkoerkamp
Thanks for all the answers. Is it also possible with lead free soldering to produce little holes in the solder that are not blowholes? We see holes where you can see the end of the hole (not very deep). The holes are always on the same places.
Electronics Forum | Wed Nov 20 10:50:49 EST 2002 | dphilbrick
Kester has a special alloy for high temp soldering. Alloy 123. I would think that if you coocked 63/37 to 360c you would have a pot of dross in no time! Doug
Electronics Forum | Fri Dec 01 08:40:57 EST 2006 | realchunks
If you have surface mount on the bottom, you can place openings between any thru-hole parts that constantly short. Your adhesive is a natural solder block!
Electronics Forum | Fri Mar 05 08:51:06 EST 2010 | pjc
Just got this off the wire, new IPC A610E Document -due out in April: http://www.solder.net/marketplace/product_desc.asp?Sku=IPC-A-610E&Category=61
Electronics Forum | Tue Aug 08 20:39:29 EDT 2023 | cbeneat
What manufacturer is it? I usually stack the bars in as tight as possible. Especially against the wall of the pot with heaters. While it's heating keep applying slight pressure with a bar of appropriate material, towards the sides to facilitate melti
Electronics Forum | Thu Feb 20 00:51:42 EST 2003 | Joe
We are running an RMA flux (Kester 1515). Changing the angle didn't help any so we're back at 6 degrees and placing an order for the lambda nozzle changeover. Are you currently running the debridging knife?
Electronics Forum | Mon May 10 07:53:30 EDT 2004 | pjc
most machines have fixed angle of 6 deg. some are adjustable from 5 - 7 deg., but 6 is most popular.
