cryogenics useful on superfarm crank? February 26, 2013 05:20AM
Guys are cryo treating their 640 stroked cranks now for superfarm? Or is this old news? What is the advantage? Better wear? Stronger? I would think that they would be more prone to cracking, but I dont know. If there is a working advantage to doing this, who would do it first of all, and is it done after the crank is stroked and weighted, but before the finished sizes are done on the journals?
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Re: cryogenics useful on superfarm crank? February 27, 2013 06:49AM
During quenching most medium carbon steels and low alloy steels undergo transformation to 100% Martensite at room temperature. However, high carbon and high alloy steels have retained Austenite at room temperature. Austenite is very brittle and can cause loss of strength, hardness, dimensional instability, or cracking. In Cryogenic treatment the Austenite becomes unstable at extremely low temperatures and the whole crystalline structure becomes Martensite.
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Re: cryogenics useful on superfarm crank? February 28, 2013 01:29AM
Ok. Now that I am up to speed on the physics of metalurgy, I see what the process does. Where can I have my crank treated? I would prefer to find a reputable place that has done crank shafts before.
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Re: cryogenics useful on superfarm crank? February 28, 2013 02:24AM
Where u located?
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Re: cryogenics useful on superfarm crank? February 28, 2013 03:02AM
I'm in the process of making the Builders Directory a little more searchable and user friendly... here are two that I found on that page:

Cryogenic Institute of New England, Inc. 78 Chilmark Street
Worcester, MA 01610
Phone: (508) 459-7447
Fax: (508) 459-7426		 We offer cryogenic treatment for all industries. We also offer a full line of cryogenic services.

Cryoplus 2429 North Millborne Rd
Wooster, OH 44691
Phone: (330) 683-3375
Fax: (330)-683-2653		 cryogenic services for the woodworking, logging, metal forming, stamping, tool and die, shearing, slitting, welding, punching, musical, shooting and racing industries


Jake Morgan
Owner, PULLOFF.COM
Independent Pulling News


This page is a free service. The cost is covered out of my pocket. It takes a great deal of time and a fair amount of money to keep this website going. Donations for: photos, classified ads, forum discussion, etc... are appreciated.

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Re: cryogenics useful on superfarm crank? February 28, 2013 09:37AM
300 below, in IL. did most of my motor parts.
john kousky, decatur IL.
1-217-423-3070
very good to work with, 3-4 day turn around, they run 2 batches a week.
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