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Re: Cryogenic Treatment

Posted by Ray Kimber (M) on November 12, 2001 at 09:21:46

In Reply to: Re: Cryogenic Treatment posted by HIFIADDICT on November 11, 2001 at 15:21:01:

Hi Inmates,

I'm back from most of the traveling. Thought I might make just a couple of comments.

I have been experimenting with Cryogenic treatment of wire, connectors, CDs and hardware, for several years now. I have also been experimenting with Cyrogenic treatment, which yeieds even better results and involves only the waving of an Egyptian Pyramid over the part (Cyrogenic=Cairogenic treatment, get it hehe)

Anyway, back to the Cryogenic. First a caution! Cryogenic treatment is not always a good idea, consider that un-even cooling, just like un-even heating can cause fractures in the target. For example, suppose there was an advantage (and I think that there is) to Cryo treating a vacuum tube, there would be glass, metal and insulators, all of which have slightly different expansion rates that are related to heat and cold. It should be obvious that either heating or cooling a vacuum tube either too QUICKLY or too UNEVENLY would damage the tube. Therefore I would like someone to ponder just HOW it is possible to immersion treat in liquid Nitrogen. No matter if you put the part in slowly or just drop it in, I can't see how to avoid un-even and/or too quick cooling.

In my mind, two issues are involved.

1 Is there an absolute temperature that if too low will always cause failure of the part. (assuming the part is cooled evenly)

2 Is there a rate of "degrees per second" drop that if exceeded will always cause a failure.

My thought is that the cooling process should not exceed either issue.

There are quite a few books on the subject. Here is a link to the KK library, look for books with Cryogenic in the title. Then try your local library, they should have at least a few of them.

http://www.kimber.com/kktitle.htm

I think that Cryo treatment has the potential to improve many of the parts of an audio system. Figuring out the exact cooling recipe is going to be the long term battle. Some Cryo treaments might end up like some record treatments, in that the treatment seemed to work at first, but ulimately left the vinyl permanently damaged in a unexpected way.

I would also observe that it is VERY easy to claim that a part is Cryo treated, but the verification is difficult. As a contrast, if someone claims that they now will sell 2 meters of cable for the previous price of one meter. That is an improvement that can be measured by anyone, just get out your measuring tape. But if the price of the one meter is raised and the claim of Cryo is used, ya might be able to hear a difference, but how can ya tell if it was because of Cryo, or if it was Cryo treated at all?

Kind regards,

Ray

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