Electronics Forum | Fri May 21 20:38:40 EDT 2004 | Grant Petty
Hi, This would be a very exciting idea. Nitrogen is an inert gas, so this is why it's used, however Hydrogen mixed with oxygen in normal air is highly explosive, so it would be one of the worst gasses to use in a reflow oven I would think. Remember
Electronics Forum | Fri Nov 12 12:58:38 EST 2021 | jeremy_leaf
Hi SMTnet. I have a series of sensitive parts and solder preforms which degrade when exposed to oxygen and moisture. It seems the standard way of protecting these components is to use a nitrogen purged cabinet as storage. This seems to use a lot of
Electronics Forum | Thu May 24 10:51:49 EDT 2001 | Frang
What is the guideline to determine the require level of PPM Oxygen in Nitrogen reflow.
Electronics Forum | Mon Jul 29 11:28:09 EDT 2002 | yngwie
Is there a difference between the Nitrogen cabinet vs Dry cabinet ? How does this helps in creating safe environment for MSD storage. I felt puzzled when my customer rejected me coz' I'm using the Nitrogen cabinet instead of dry cabinet. Except for t
Electronics Forum | Mon Jul 29 21:22:52 EDT 2002 | Yngwie
The customer said " The Nitrogen PPM is questionable". LIke what I said, as long as I have met the 10% RH, it should be OK, rite ? thx
Electronics Forum | Mon Jul 29 18:55:34 EDT 2002 | davef
Good question. What did your customer say?
Electronics Forum | Mon Jul 29 21:41:22 EDT 2002 | davef
Rite. Moisture, not N2, in the air is the issue.
Electronics Forum | Tue Jul 30 08:38:55 EDT 2002 | dasal
Truthfully, there are pro's and con's for both technologies. (put cost of ownership aside for one moment) Nitrogen won't dry humidified components as rapidly as a desiccant dry box. I'm talking about a self regenerating dry box that uses molecular s
Electronics Forum | Mon Sep 23 18:11:10 EDT 2002 | steveb
On an assembly reflowed in air saw the same thing: 0201's with a grainular solder joint, but 0402's and above with perfectly formed joints. Reflow profile all within acceptable tolerances. Reflowing in nitrogen solves this problem, but increases t
Electronics Forum | Thu Feb 08 17:35:45 EST 2024 | stephendo
fluctuating PPM is not the Nitrogen if you are using liquid Nitrogen. It is the Oxygen. Your problem is not with the Nitrogen flow, it is Oxygen getting in your oven.
