REPROCESSED COMPONENT AND METHOD FOR MANUFACTURING REPROCESSED COMPONENT

WIPO Patent Application WO/2022/230937

A1

This reprocessed component (100) is provided with a carburized layer (10) on the surface thereof, and has, in the carburized layer (10), three layers including a first cured layer (1), a second cured layer (2), and a third cured layer (3) in the stated order adjacent to each other in the depth direction from the surface and each having a greater hardness than a core part (20), the first cured layer (1) having the highest hardness among the three layers, and the second cured layer (2) having the lowest hardness among the three layers.

KANAZAWA TOMOHISA (JP)
VINAS DAN (JP)
BELTRAN DANILO (JP)
YOSHIMOTO MITSUHIRO (JP)
HATA NORIHITO (JP)
SUGAWARA MICHIO (JP)
HAYAKAWA MASAO (JP)

PCT/JP2022/019085

November 03, 2022

April 27, 2022

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HITACHI CONSTRUCTION MACH CO (JP)
NAT INST MATERIALS SCIENCE (JP)

C21D9/02; C21D1/06; C21D1/09; C21D9/28; C21D9/32; C21D9/40; C22C38/00; C22C38/22; C23C8/22; C23C8/80

WO2015199599A1	2015-12-30
WO2017154964A1	2017-09-14
WO2018088207A1	2018-05-17

JP2006009145A	2006-01-12
JPS5544555A	1980-03-28
JPH0339459A	1991-02-20
CN111041406A	2020-04-21

KATSUYUKI MATSUI, HIROHITO ETO, KATSUYA YUKITAKE, YOSHITAKA MISAKA, KOTOJI ANDO: "Increase in Fatigue Limit of Gears by Compound Surface Refining Using Vacuum Carburizing, Contour Induction Hardening and Double Shot Peening", JSME INTERNATIONAL JOURNAL, vol. 45, no. 2, 1 January 2002 (2002-01-01), pages 290 - 297, XP055284967, ISSN: 1344-7912, DOI: 10.1299/jsmea.45.290

MATSUNUMA Yasushi et al. (JP)

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