Using nitrogen as coolant?
Using nitrogen as coolant?
(OP)
I recently read an article where a company is using nitrogen extracted from the atmoshere as a coolant. I have tried without any luck in getting any information from that company. Can somebody help me find more information on how to apply this technology to CNC turning centers? Thanks.





RE: Using nitrogen as coolant?
RE: Using nitrogen as coolant?
http://www.nitrogenie.com/
RE: Using nitrogen as coolant?
RE: Using nitrogen as coolant?
Best Regards
Morten
RE: Using nitrogen as coolant?
RE: Using nitrogen as coolant?
In this discussion we came across two questions. First, if a liquid nitrogen is suitable for using as a coolant in machining and second, where to get it. To answer the first question, I have to clarify some physical properties of liquid nitrogen.
Liquid nitrogen has zero lubricity and low heat capacity. The later means that the amount of heat carried from any hot surface is relatively low (say, much lower than water does). Moreover, being applied on hot surfaces, it forms a vapor shield that further decreases its cooling effect. Therefore, a special technique should be used if one tries to use liquid nitrogen as a coolant. This implies s special tool designs and delivery of the liquid nitrogen into machining zone under pressure. For example in twist drilling, only drills having internal channels for coolant supply should be used. I have a number of such designs and complete technology in my possession.
It is efficient. Yes, for certain application (high titanium alloys and aluminum) it allows increase productivity and quality up to 5 folds. It all depends whet are you looking for.
Where to get it? This is the simplest problem – you can order it in any amount (from one vacuum flask to a track load). Moreover, you can buy a small machine (5-10 gallons per 4 hour) to produce it in house.
Regards
Viktor
http://viktorastakhov.tripod.com
RE: Using nitrogen as coolant?
RE: Using nitrogen as coolant?
Christopher Caserta
ccaserta@enorthhampton.com
Ph:904-225-0360