RE: Re: "Cryogenic Freezing"

["Michael Pederson" <mlped@concentric.net>]

Jon - I'm interested in its application as it may affect and possibly
improve:

1. Rods
2. Hardening of bearing surfaces, especially cranks etc. stress relief and
reduction of friction
3. Engine block - for (a) stress release; and (b) cylinder wall wear &/or
friction reduction
4. Head - bearing surfaces, valve rods, faces & seats
5. Head - valve springs, claims to prolong life etc.

Any thoughts?  I'm seeing claims that it's a miracle cure, enhancement,
improvement for all of the above evils that plague mankind.
Second, any ideas re: the sophistication required of the service provider.
Is there for example a "recipe" book for how to cure?
 Does it vary from material to material?  I.e. do you have to do your
aluminum head separate from your pistons?  How long does the tempering
process generally take?  Is it one freeze thaw cycle or a dozen?
And finally, where or how is one going to see the proof of the pudding?

Michael Pederson
93 S4
-----Original Message-----
From: owner-quattro@audifans.com [mailto:owner-quattro@audifans.com]On
Behalf Of Ragnampiza@aol.com
Sent: Friday, September 10, 1999 4:40 PM
To: enzeder@home.com; owner-quattro@audifans.com; quattro@audifans.com
Subject: Re: Re: "Cryogenic Freezing"


In a message dated 9/10/99 5:21:45 PM, enzeder@home.com wrote:

<<What about warping?



At 01:39 PM 9/10/1999 -0700, Jon Archibald wrote:
>This is a real process, correctly refered to as "Cold Hardening". Indeed,
>the super-cooling of the metal does form a more neatly packed molecular
>structure, increasing "strength" on some parameters when "warmed back up".
>I've got the stress-strain charts to if anyone's interested. This process
>has many applications, particularly in concrete reinforcing bars and steel
>structural members. It increases resitance to bending and tensile stresses,
>and in fact is used in the production of many engine components. BUT IMO
>this process would have no effect against the things that destroy
>rotors: heat and surface friction. My analysis- Useless Gimmick!
>Jon
>-87 5ksq 5spd,
>-97 B.S.C.E., UCLA Edition
>
>Jon Archibald
>Civil Design
>W&H Pacific
>503.372.3616
>jarchibald@whpacific.com
>
>>>

I don't know very much about metallurgy......but wouldn't rotors cast with a
high nickel content achieve the same purpose....greatly extending life and
strength
as in the case of the highly sought after Chevy small blocks with a 010/020
casting.....maybe the auto companies don't do this because they like selling
rotors