Title:
IMPACT- AND WEAR-RESISTANT COMPONENT AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/138295
Kind Code:
A1
Abstract:
A ripper shank (10), being an impact- and wear-resistant component, comprises steel having a specific composition and having a hardness of 53–57 HRC. This steel includes: a matrix phase comprising a martensite phase and a residual austenite phase; and first non-metallic particles dispersed in the matrix phase and including at least one type selected from the group consisting of MnS, TiCN, and NbCN. The steel does not include an M23C6 carbide.
Inventors:
AMADA EIJI (JP)
KITAMURA KOUJI (JP)
MAEDA KAZUO (JP)
KOBAYASHI NAOMI (JP)
NODA TAKASHI (JP)
HATANO MAMORU (JP)
AMATA TAKAFUMI (JP)
NEISHI YUTAKA (JP)
MIYANISHI KEI (JP)
NISHIJIMA RYOJI (JP)
TAKIGUCHI DAISUKE (JP)
KITAMURA KOUJI (JP)
MAEDA KAZUO (JP)
KOBAYASHI NAOMI (JP)
NODA TAKASHI (JP)
HATANO MAMORU (JP)
AMATA TAKAFUMI (JP)
NEISHI YUTAKA (JP)
MIYANISHI KEI (JP)
NISHIJIMA RYOJI (JP)
TAKIGUCHI DAISUKE (JP)
Application Number:
PCT/JP2019/051137
Publication Date:
July 02, 2020
Filing Date:
December 26, 2019
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
NIPPON STEEL CORP (JP)
NIPPON STEEL CORP (JP)
International Classes:
C21D9/00; C22C38/00; C22C38/54
Foreign References:
| JP2003027181A | 2003-01-29 | |||
| JP2003328078A | 2003-11-19 | |||
| JPH0841535A | 1996-02-13 | |||
| JP2016094636A | 2016-05-26 | |||
| DE102010050499B3 | 2012-01-19 |
Attorney, Agent or Firm:
KITANO, Shuhei (JP)
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