Cryo-treating?

[Synestral]

It was on the news the other night, so I talked to a few guys down at the local vo-tech about it. Seems it is a valid way to strengthen any metal parts.

Anybody have any experience with it, or have any information?

[firechiken]

RE: Cryo-treating?

You mean freezing it? Never heard of that.

[Lyle's GTP]

RE: Cryo-treating?

Yes, freezing it. It releases internal stresses and "fatigue strengthens" the component. Works best on heat treated metals. Apparently not worth it, unless you are running boost. ie. Turbo, Blower or Nitrous.

Lyle

[ikessky]

RE: Cryo-treating?

Doesn't it have to get below like -300 degrees for cryo-treating? One article I read (in an import magazine ) said that it mainly started with guys doing tractor pulls. They would burn their turbo's out after only a few passes. After cryo-treating them, they would last over 75 passes.

[RednBlack]

I wonder if you can freeze a dead engine and bring it back to life when they find a cure?
It is actually a viable means of hardening certain metals that are prone to abrasion. http://www.cryointegrity.com/extend.html Used in place of Nitriding. Not cheap though. Used in the Molding industry for plastics that are loaded with glass, or Hi temp nylons.

[Lowerd1]

This is not new, tons of people do it. The Rally drivers will do it to their Trans hard parts so they last longer. The Nascar guys do it so their parts last longer. One of the Honda Hybrid guys took his whole engine apart, had it cryotreated and has gotten up to 120mpg. Some of the GTP guys have had their Rotors cryotreated.

It makes the metal parts last longer and alot stronger so its great for TRANNY hard parts.

[dohcfiend]

while somewhat on the subject what is nitriding? i have heard of peeps doing it to crankshafts.