Electronics Forum | Thu Apr 18 23:56:27 EDT 2002 | Abelardo Rodriguez
I'm trying to get a better understanding of the cooking process of pcb's. The use of nitrogen in reflow and wave ovens. Seems to have a wide margin of acceptance as a standard gas to prevent oxidation of metals in the board. Has any one heard or us
Electronics Forum | Fri Jan 28 01:56:32 EST 2005 | Chua
Hi, I could like to find out what are the things need to look out if I'm doing a new SMT solder paste ( water soluble & no-clean ) evaluation. And also flux ( spray type ) for wave-solder ( water soluble & no-clean ). Appreciate for all the input..
Electronics Forum | Thu Sep 20 12:37:10 EDT 2007 | hussman
As long as your operator is grounded, a pair of welders gloves is fine. The leather kind do not build up static and do last a while. If the same pair of gloves is being used for dedrossing the wave, pay special attention to loose fitting gloves. I
Electronics Forum | Fri Aug 01 00:30:04 EDT 2003 | caldon
Also Try: http://www.airliquide.com/en/business/industry/electronics/expertise/tech_papers.asp you can also search the airliquide site for "PPM" once in the electronics section Cal
Electronics Forum | Sat Jan 29 05:43:51 EST 2005 | Chua
Hi Chunks, Thanks for your input. Appreciate you could send me a copy of your evaluation list as this type of evaluation is new to me..... Here is my email address :- pgchua@cyberway.com.sg Thanks.
Electronics Forum | Tue Feb 01 20:08:39 EST 2005 | davef
Look here: http://www.epa.gov/ozone/snap/icel/noclean2.pdf
Electronics Forum | Fri Sep 21 10:33:56 EDT 2007 | russ
we use welders gloves with cuffs. there are some other heat gloves out there as well, we like the durability of leather though Russ
Electronics Forum | Sat Apr 20 10:12:16 EDT 2002 | davef
If people use an inert gas, they use nitrogen for mass soldering. Inert gases get progressively more expensive as you move down the periodic table. Many times no-clean flux is less active than other flux types. So, people use an inert gas to lower
Electronics Forum | Tue Feb 01 09:53:37 EST 2005 | Howard Sommerfeld
I also have a spreadsheet tool for comparative analysis using criterion weighted scoring. It can be used to analyze any decision, and helps groups reach consensus on why a particular alternative is the way to go. As final steps you can also consider
Electronics Forum | Fri Jan 28 12:29:01 EST 2005 | Bob R.
We use the exact same method Chunks outlined for evaluating just about anything we're going to roll out worldwide, whether it's a material or a machine. List your factors (print speed, solder spread, etc), assign each a weight, evaluate each paste a
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