Testing chambers are connected to a bulk supply source of Liquid Nitrogen (LN2). A reservoir of LN2 is maintained under the nitrogen vapor cryo sample testing chamber.
A chamber controller perpetually keeps the reservoir filled with LN2, and monitors and records the temperature in the cryo vapor sample testing chamber. This reservoir of LN2 is also the source of the -150C to -190C vapor in the sample testing chamber.
Testing samples do not come into direct contact with Liquid Nitrogen.
-190C (-310F) Nitrogen Vapor Phase Chambers
-150C (-302F) Nitrogen Vapor Phase Chambers
Testing Samples can be stored indefinitely
-190C (-310F) Nitrogen Vapor Phase Chambers
-150C (-320F) Nitrogen Vapor Phase Chambers
For “internal” vacuum testing of 3D printed items in the -150C or -190C vapor chambers: you will need to print a small to med sized container with a ½” internally or externally threaded connection point. If you want us to do a dry nitrogen purge on your sample, then you would need to print a tube with a threaded fitting at both ends. If you like we can monitor the “internal” vacuum inside the sealed sampled to see if pressure is leaking through the sample wall into the sealed sample. This chamber is now permanently on line, and there is no time limit to how long test subjects can be in cryo vapor. We could can leave samples in for months or even years if needed.
