Re: No it doesn't.

Posted by alan m. kafton (M) on February 17, 2005 at 21:15:56

In Reply to: Heating may make sense posted by JTimothyA on February 17, 2005 at 19:29:02:

There is no 'heating' process within normal cryogenic treatment, other than the proper evacuation of warmer air (a narrow layer) at the top of a dewar. This allows the coldest temperature possible to process material. Materials have a gentle ramp-down of temperature over several hours, remain at 'soak' temperature for XX amount of hours, then the LN2 is evacuated from the chamber over a computer controlled period lasting several more hours. Again, there is no 'heating' element in the process. There *are* some specialized industrial processes that utilize annealing (which *is* a high-heat process) prior to cryogenic treatment, but this multi-stage treatment is for very specialized materials, such as those that NASA might require.

Instead of rationalizing what "might" make sense, why not contact an expert and ask these very questions that are posed on this thread? Since you're a reviewer, it would make great sense to have any questions clarified, no? Contact Charles Beresford at Cryogenics International...."charles@cryogenicsinternational.com" and find out from the source.

This post is made possible by the generous support of people like you and our sponsors:

Follow Ups Full Thread

Topic - Cryogenics - Story 12:01:28 02/17/05 (21)

Re: Cryogenics - Fred J 12:41:14 02/17/05 (20)

In my experience .... cryo does work. - Elmo 06:43:03 02/18/05 (1)

Re: In my experience .... cryo does work. - Fred J 07:04:08 02/18/05 (0)

I think it is very rude to attack someone's religion like that. - Mark Kelly 18:55:05 02/17/05 (0)

Re: Fred....you are *completely* wrong on all counts. - alan m. kafton 17:33:28 02/17/05 (6)

Re: Fred....you are *completely* wrong on all counts. - Keith F 12:03:55 02/18/05 (1)

Re: Most interesting.... - alan m. kafton 13:01:30 02/18/05 (0)

so tell me... - Story 18:09:29 02/17/05 (1)

Re: 'Mo betta. [nt] - alan m. kafton 18:41:12 02/17/05 (0)

Re: Fred....you are *completely* wrong on all counts. - Fred J 17:55:23 02/17/05 (1)

Re: Fred....you are *completely* wrong on all counts. - TrainMan 20:36:40 02/17/05 (0)

Re: Cryogenics - Story 13:46:46 02/17/05 (8)

Heating may make sense - JTimothyA 19:29:02 02/17/05 (2)

Re: No it doesn't. - alan m. kafton 02/17/0521:15:56 02/17/05 (1)

perhaps you're right alan, - JTimothyA 22:52:28 02/17/05 (0)

Re: Cryogenics - Fred J 14:07:39 02/17/05 (4)

I don't believe you. - srdavis2000 17:06:42 02/17/05 (3)

Re: I don't believe you. - Fred J 17:24:04 02/17/05 (2)

Re: I don't believe you. - srdavis2000 17:38:20 02/17/05 (1)

Re: I don't believe you. - Fred J 18:05:48 02/17/05 (0)

Burrrr! Man! that gave me a serious chill. :) nt - bjh 13:16:49 02/17/05 (0)

Follow Ups

Re: No it doesn't. - alan m. kafton 02/17/0521:15:56 02/17/05 (1)

perhaps you're right alan, - JTimothyA 22:52:28 02/17/05 (0)

You can not post to an archived thread.