Title:
METHOD FOR PREDICTING AMOUNT OF HYDROGEN GENERATED IN ROLLING DEVICE, HYDROGEN GENERATION TEST DEVICE USED IN SAID METHOD, AND METHOD FOR EVALUATING LIKELIHOOD OF WHITE TISSUE PEELING OCCURRING IN ROLLING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/105971
Kind Code:
A1
Abstract:
This method for predicting the amount of hydrogen generated in a rolling device includes a step in which, while two sliding members having a lubricant disposed therebetween are caused to slide against each other over the surfaces of contact, the exposed area of a surface newly generated as a result of the direct contact between the two sliding members is calculated, the amount of hydrogen generated from the lubricant is measured, and the correlation between the exposed area of the newly-generated surface and the amount of hydrogen generated is determined. The exposed area of the newly-generated surface is calculated using the metal contact ratio and the sliding speed of the two sliding members.
Inventors:
ENAMI KAKERU (JP)
YAMADA HIROKI (JP)
KOMATA HIROKI (JP)
YAMADA HIROKI (JP)
KOMATA HIROKI (JP)
Application Number:
PCT/JP2023/031576
Publication Date:
May 23, 2024
Filing Date:
August 30, 2023
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
G01N17/00; G01M13/04; G01N3/56; G01N33/30
Domestic Patent References:
| WO2020110593A1 | 2020-06-04 | |||
| WO2022054352A1 | 2022-03-17 | |||
| WO2012117970A1 | 2012-09-07 | |||
| WO2017188314A1 | 2017-11-02 | |||
| WO2022270248A1 | 2022-12-29 |
Foreign References:
| US20140157874A1 | 2014-06-12 |
Other References:
LIANG X.Z.; RIVERA-DÍAZ-DEL-CASTILLO P.E.J.: "Hydrogen-accelerated white etching area formation in bearings under rolling contact fatigue", INTERNATIONAL JOURNAL OF FATIGUE, ELSEVIER, AMSTERDAM, NL, vol. 159, 12 February 2022 (2022-02-12), AMSTERDAM, NL , XP086996300, ISSN: 0142-1123, DOI: 10.1016/j.ijfatigue.2022.106753
RICHARDSON A. D.; EVANS M.-H.; WANG L.; WOOD R. J.; INGRAM M.: "Thermal Desorption Analysis of Hydrogen in Non-hydrogen-Charged Rolling Contact Fatigue-Tested 100Cr6 Steel", TRIBOLOGY LETTERS, SPRINGER US, NEW YORK, vol. 66, no. 1, 25 November 2017 (2017-11-25), New York, pages 1 - 16, XP036372131, ISSN: 1023-8883, DOI: 10.1007/s11249-017-0947-0
HIGASHINE, YASUHA: "About flaking on electrical components and auxiliary bearings in automobile engines", JXTG TECHNICAL REVIEW, JXTG ENERUGI KABUSHIKI GAISHA, TOKYO, vol. 51, no. 2, 1 May 2009 (2009-05-01), Tokyo, pages 53 - 57, XP009554555, ISSN: 2433-5797
RICHARDSON A. D.; EVANS M.-H.; WANG L.; WOOD R. J.; INGRAM M.: "Thermal Desorption Analysis of Hydrogen in Non-hydrogen-Charged Rolling Contact Fatigue-Tested 100Cr6 Steel", TRIBOLOGY LETTERS, SPRINGER US, NEW YORK, vol. 66, no. 1, 25 November 2017 (2017-11-25), New York, pages 1 - 16, XP036372131, ISSN: 1023-8883, DOI: 10.1007/s11249-017-0947-0
HIGASHINE, YASUHA: "About flaking on electrical components and auxiliary bearings in automobile engines", JXTG TECHNICAL REVIEW, JXTG ENERUGI KABUSHIKI GAISHA, TOKYO, vol. 51, no. 2, 1 May 2009 (2009-05-01), Tokyo, pages 53 - 57, XP009554555, ISSN: 2433-5797
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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