Cryogenic Technical Articles |
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Cryogenic Technical Articles |
lmcchesney |
Feb 9 2004, 09:31 AM
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#1
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Member Group: Members Posts: 488 Joined: 24-November 03 From: Ocala, Fl. Member No.: 1,381 Region Association: None |
I have reviewed all the messages from the foum regarding cryogenic processing of engine parts. However, it lacks good/significant documentation regarding the different processes done.
Does anyone know the source of technical articles regarding this process. There must be some University site with this information. Yes, I have searched the MIT site without success. Anyone have the information? Thanks, L. McChesney |
kdfoust |
Feb 9 2004, 10:22 AM
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#2
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Senior Member Group: Members Posts: 694 Joined: 2-January 03 From: Riverside Member No.: 71 Region Association: Southern California |
It wouldn't surprise me if the legitimately developed and tested methods are held as trade secrets. As you say, university research may be the best source of information. I'll talk to some people and let you know if I find any leads that have actual test data to back up the claims.
Are you planning to DO IT, or USE it? Have you called some local heat treatment shops and asked them about it? ***********here's a nugget of nfo for you*************** A quick patent search yielded this as a hit. Note the austenite decrease claim. Patent Assignee: INST STIINT ING TEH Inventors: BUMBEA E; DRUGA L; FRANCISC V; GIACOMELLI I; MUNTEANU A; PANTEA V; TEACA M; VASILIU A Patent Family Patent Number Kind Date Application Number Kind Date Week Type RO 92459 A 19870930 RO 119206 A 19870619 198804 B Priority Applications (Number Kind Date): RO 119206 A ( 19850619); RO 119206 A ( 19870619) Abstract: RO 92459 A The process comprises nitriding or carbonitriding to give a 0.05-0.15 mm hardened layer. Thus thread rolling jaws and other cold plastic deformation tool can be hardened in this way. The heating is followed by sub-zero treatment to decrease the residual austenite content to below 5%. ADVANTAGE - The process increases cold working tool quality. |
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