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Title:
ROLLING ROLL MADE BY CENTRIFUGAL CASTING
Document Type and Number:
Japanese Patent JP2006075892
Kind Code:
A
Abstract:

To provide a rolling roll made by centrifugal casting excellent in wear resistance and resistance to rough surface by granulating the shape of MC carbide and also dispersing the MC carbide finely and uniformly.

This rolling roll made by centrifugal casting consists of, by mass, 1.0-3.0% C, 0.3-3.0% Si, 0.3-1.5% Mn, 0.1-2.0% Ni, 3.0-10.0% Cr, 0.1-8.0% Mo, 3.0-12.0% V, 0.005-1.0% Ti, 0.001-0.5% Al and the balance Fe with impurity elements in the chemical composition of the outer layer and the granular MC-based carbide of 5-15 area% is contained in the metallic structure. The granulation rate of the MC carbide is ≥0.5. Furthermore, the chemical composition of the outer layer contains, by mass, 0.1-5.0% W, 0.1-10.0% Nb and 0.1-5.0% Co.


Inventors:
HONDA RYOTA
Application Number:
JP2004265627A
Publication Date:
March 23, 2006
Filing Date:
September 13, 2004
Export Citation:
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Assignee:
HITACHI METALS LTD
International Classes:
B21B27/00; B22D13/02; B22D19/16; C22C37/00; C22C38/00; C22C38/56
Domestic Patent References:
JPH04141553A1992-05-15
JP2002161331A2002-06-04
JPH108212A1998-01-13
JPH0641676A1994-02-15