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Old 02-17-2010, 05:46 PM   #1
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Default New Site Sponsor -- Frozen Rotors

Everyone,

Just wanted to let you know that we have a new site sponsor -- Frozen Rotors (www.frozenrotors.com). You will see their ad on the right hand side of the page.

I'm hoping a representative from their site will post on this thread to give everyone an idea about their products.

Thanks!

Jon
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Old 02-17-2010, 05:49 PM   #2
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wouldnt the rotors bein froze cause problems

lol j/k
well even though theyve not posted welcome to them
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Old 02-17-2010, 05:50 PM   #3
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wouldnt the rotors bein froze cause problems
Exactly the kind of questions they can answer!
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Old 02-17-2010, 05:51 PM   #4
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Saweet... Welcome aboard Frozen Rotors.
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Old 02-17-2010, 06:42 PM   #5
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Default Frozen Rotors

Hello everyone,

Frozen Rotors is glad to be an F150forum.com sponsor. We have a 2006 F150 4x4 as our company truck that we use to haul brake rotors and also to tow a racecar to the different road race tracks in the upper Midwest. Both the truck and racecar are used as test mules to experiment with new brake products.

Our company has been in business for 14 years and we have been offering cryogenically treated brake rotors for the last 12 years. Trucks, SUVís, police, ambulance, and racecars have been our most popular applications since these are typically heavy brake users. The treated brake rotors combined with a quality brake pad can extend the rotor and pad life by as much as twice the expected life. For the details just go to our website at www.frozenrotors.com.

If anyone has questions regarding brakes I will do my best to help out. In the last 12 years Iíve seen my share of brake rotor and brake pad issues.

Thanks for listening. Iím looking forward to learning more about my F150.

Cheers,

Mark Link

PS. A frozen caliper piston is no good...Frozen Rotor is very good.
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Old 02-17-2010, 06:51 PM   #6
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Welcome, just a quick (or maybe not so quick) question. What is the difference between the Cryo and the regular rotors? What are the benefits, etc?
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Old 02-17-2010, 06:54 PM   #7
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The cryogenic rotors shared a freezer with Elvis Tupac and Michael Jackson.. where as regular rotors have no dead celebirty friends

No really im intressted to know how frezzing a rotor helps as well I thought freezing it would make them weaker
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Old 02-17-2010, 07:07 PM   #8
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The cryogenic rotors shared a freezer with Elvis Tupac and Michael Jackson.. where as regular rotors have no dead celebirty friends
I just spit lemonade on the computer laughing...
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Old 02-17-2010, 11:22 PM   #9
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Let me give you a simple explanation.

There are three mechanisms related to cryogenic treatment of steels. The conversion of retained austenite (RA)to martensite is one. This mechanism is important and brings several benefits, including a contribution to increased wear resistance. Additionally, it provides for a more homogeneous grain structure, free of (grain) imperfections and voids, which contributes to enhanced thermal properties, (e.g. better heat dissipation). This is because the imperfections act as points of diffusion, effectively "blocking" or de-grading the thermal properties of the metal at those points.
A second mechanism, even more important to increased wear resistance, is the precipitation of eta-carbides in carbon steels. This has been documented by a team of Japanese researchers in a technical paper presented at ISIJ.
In order to understand its significance, I think that it is important to realize that the introduction of carbon to iron is what fundamentally makes steel. Carbon,(C) a non-metal, is chemically dissolved into iron (Fe). Chemically, the largest amount of carbon that can be dissolved into iron is somewhere around 7%. When people talk about "high carbon" steels -- those that are recognized for their high wear resistance properties -- they are often thinking about Tool Steels that may have somewhere between 0.7% and 1.2% Carbon content. So the point is that a little bit of carbon goes a long way in enhancing the wear resistance of steels.
Remember that Carbon -- AKA diamond --is the hardest element. By chemically blending it with iron (Fe), it effectively protects the iron molecules by providing a tough, highly wear resistant molecularly bonded partner.
On the down side, the more carbon that you add, the less ductile that the metal becomes. You could also say that it becomes more brittle or that it loses toughness (in a machine tool sense). So it is always a balancing act of having high carbon for high wear resistance versus not too much whereas the steel fails due its reduced ductility/ increased brittleness.
The whole point of this discussion is that CARBON is critical to wear resistance in steels. When carbon steels (and cast irons, etc.) undergo a cryogenic treatment, free carbon atoms are able to locate themselves within the chemical lattice of the iron / carbon (Fe-C) matrix in a place where they are more atomically attracted. This modification to the carbon microstructure (technically called "the precipitation of eta-carbides") can vastly improve wear resistance of carbon steels, cast irons, etc. In general terms, the more carbon, the better the effect.
Now, why does this occur? Again, it is all the result of TTT (Time Temperature Transformation)process. When steels are brought to a very low temperature (e.g. -300 F) for extended periods, heat is removed. As a result, molecular activity is reduced -- or molecular movement is minimized. (Remember at theoretical absolute zero, which is about -460 F, there is NO molecular movement.) So as heat comes back into the steel, e.g. as it gradually warms up, kinetic activity (molecular motion) increases and carbon atoms actually "tweak" themselves into a more ideal position within the chemical matrix. In a simply stated version, free carbon atoms are attracted to open spots within the iron matrix. This mechanism, ever so slight, can have big implications on increased wear resistance. It is the mechanism that the Japanese team documented and in my view is the one that is most critical to improving wear resistance in carbon steels.
As a final note, the third mechanism is residual stress relief. Einstein observed that matter is at its most relaxed state when it has the least amount of kinetic energy (or molecular activity). With a proper cryogenic treatment, any metal will be relaxed and residual stresses relieved. It is perhaps the least recognized benefit of cryogenic treatment. Parts that "walk" or "creep" during machining are the result of residual stresses in the metal that have been machined away that were keeping the part in a certain plane. So more and more people are cryogenically stress relieving metal parts to reduce the creep and walk factors that causes parts to go out of round or flat and fail critical tolerances. This is most successfully done after rough cut and before final machining. Again, this can benefit any metal and is unrelated to the other mechanisms cited above.


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Old 02-17-2010, 11:31 PM   #10
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I should get a Ph.D after successfully reading that post! :-)
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