cryogenic treatment?
10-13-2003, 04:07 AM
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cryogenic treatment?
my mom's kart shop got a cryogenic treatment thing. they use it on all sorts of their parts and it makes them stronger or something..
does anyone know how this works? would any of my engine parts benefit? I'm tempted to cryogenically impove my engine one part at a time since I have access to it.. wutcha think?
does anyone know how this works? would any of my engine parts benefit? I'm tempted to cryogenically impove my engine one part at a time since I have access to it.. wutcha think?
10-13-2003, 09:14 AM
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Yes this is done to engine parts. It can increase the strength of, say a crank, to over 200% of the original capability. This is often used in serious engine internals modification.
Its a fairly inexpensive process... if you don't include the time (or labor cost if you dont do it yourself) to get to the part
jason
[edit] p.s. they generally do a full freeze and warmup in a 72 hour period. I saw an article on this very recently, I'll see if I can find it.
Its a fairly inexpensive process... if you don't include the time (or labor cost if you dont do it yourself) to get to the part
jason
[edit] p.s. they generally do a full freeze and warmup in a 72 hour period. I saw an article on this very recently, I'll see if I can find it.
10-13-2003, 09:20 AM
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hmm.. I'm all about the free mods. How much work is it to get to the engine internals? Would I have to pull the engine out or just everything on top of it?
Is there anything that I shouldn't throw in there?
Is there anything that I shouldn't throw in there?
10-13-2003, 09:20 PM
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By reducing the temperature significantly you will rearrange the molecules in more ordrely pattern, thus the part is stronger. Diamonds are the hardest substance known to man. Diamonds are so hard because all the carbon atoms are equal distances. The generaly principle is to reduce the temp and rearrange the molcules. IT does work since a lot of race teams do this to transmissions.
10-13-2003, 10:32 PM
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OK, the article as promised. This is from Nov. 2003 Turbo Magazine (Vol 19, No 11). It was specifically regarding cryotreating SE-R transmission parts.
(paraphrased).. "freezing wih liquid nitrogen, then slowly heating them to around 350F, cycling this 3 times in a 72hr period. Cryo treating is an extension of the heat-treating process and typically provides 100% increase in fatigue strength and wear, with some improvements in tensile strength.
Usually around $100, cryo treating works best on ferrous metals, like steel, that have been heat treated. Crygenic treatment has no neg effects and works well on engine parts, axles, brake rotors and any other higly stressed metal parts."
So its more than just getting it cold, you gotta get it hot too... oven hot.
jason
(paraphrased).. "freezing wih liquid nitrogen, then slowly heating them to around 350F, cycling this 3 times in a 72hr period. Cryo treating is an extension of the heat-treating process and typically provides 100% increase in fatigue strength and wear, with some improvements in tensile strength.
Usually around $100, cryo treating works best on ferrous metals, like steel, that have been heat treated. Crygenic treatment has no neg effects and works well on engine parts, axles, brake rotors and any other higly stressed metal parts."
So its more than just getting it cold, you gotta get it hot too... oven hot.
jason
10-15-2003, 09:02 AM
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Originally posted by tim
So are there shops that will do this for the average enthusiast, or is this something that is more geared to race teams?
So are there shops that will do this for the average enthusiast, or is this something that is more geared to race teams?
10-15-2003, 10:19 AM
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i believe they heat forge the piece first, then try to get the piece as cold as possible by getting it as close to absolute zero (which is impossible) as they can... this 'freezes' the molecules into a more even pattern.
10-15-2003, 10:32 AM
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the cryo machine I'm gunna use is like an oven with liquid nitrogen. Its a 72 hour process.. the machine freezes the part, heats it up, freezes it again, etc. I have to pay for the liquid nitrogen, but I can also throw some parts in with the clutches that they normally treat. I'm trying to find out if I can get access to it for a weekend and how much will fit at once and start a group buy for the liquid nitrogen
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