Title:
圧延用遠心鋳造複合ロールの外層材、及び圧延用遠心鋳造複合ロール
Document Type and Number:
Japanese Patent JP7063180
Kind Code:
B2
Abstract:
To provide an outer layer material of a centrifugal casting compound roll for rolling which is excellent in wear resistance and surface roughening resistance and to provide a centrifugal casting compound roll for rolling made by melt-sticking and integrating an outer layer composed of the outer layer material and an inner layer.SOLUTION: An outer layer material of a centrifugal casting compound roll for rolling comprises an Fe alloy, by mass, consisting of 1.50 to 2.70% C, 0.3 to 3% Si, 0.1 to 3% Mn, 0.1 to 2.5% Ni, 4.0 to 7.0% Cr, 4.1 to 8.0% Mo, 5.0 to 10.0% V, 0 to 0.4% W, 0.1 to 3.0% Nb, 0.005 to 0.15% N, 0 to 0.05% B and the balance substantially consisting of Fe and inevitable impurities, and is characterized in that the ratio of V content (mass%) to Nb content (mass%) is 1 to 20.0 and a C-bal exhibited by the following relation is 0 to 0.28: C-bal=C%-0.2×V%-0.06×Cr%-0.063×Mo%-0.033×W%-0.13×Nb%..(1).SELECTED DRAWING: Figure 1
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Inventors:
Yasunori Nozaki
Nozomi Oda
Toshiyuki Hattori
Fukumoto Shiho
Nozomi Oda
Toshiyuki Hattori
Fukumoto Shiho
Application Number:
JP2018149757A
Publication Date:
May 09, 2022
Filing Date:
August 08, 2018
Export Citation:
Assignee:
Hitachi Metals Co., Ltd.
International Classes:
B21B27/00; B22D13/00
Domestic Patent References:
| JP2015193014A | ||||
| JP2016180167A | ||||
| JP2000160277A | ||||
| JP2015205342A | ||||
| JP5295479A | ||||
| JP4365836A | ||||
| JP2001150007A |
Foreign References:
| WO2018047444A1 | ||||
| WO2016031519A1 | ||||
| WO2015045984A1 |
Attorney, Agent or Firm:
Takaishi Tachibana
Kenji Takaishi
Kenji Takaishi