Title:
ROLL FOR ROLLING
Document Type and Number:
WIPO Patent Application WO/2000/051756
Kind Code:
A1
Abstract:
A roll for rolling which has a base material made from a steel containing 0.60 to 1.1 % of C, 0.15 to 3.0 % of Si, 0.15 to 3.0 % of Mn, 3.0 to 12.0 % of Cr, 0.5 to 5.0 % of Mo and 0.5 to 10 % of Co and, on the surface thereof, a hard coating film formed through a surface modification treatment using the PVD method or the CVD method, wherein carbide grains being dispersed on the surface of the basic material to be treated have a maximum equivalent grain diameter of 20 $g(m)m or less. The roll has excellent resistance to wear, seizure and accident, and also is excellent in grindability, and moreover can be manufactured at a low cost, which result in marked improvement in the productivity and the surface quality of steel plates.
Inventors:
JINBO YASUHIRO (JP)
Application Number:
PCT/JP2000/001020
Publication Date:
September 08, 2000
Filing Date:
February 23, 2000
Export Citation:
Assignee:
KANTO SPECIAL STEEL WORKS LTD (JP)
JINBO YASUHIRO (JP)
JINBO YASUHIRO (JP)
International Classes:
B21B27/00; C22C38/22; C22C38/24; C22C38/30; C22C38/34; C22C38/44; C22C38/46; C22C38/52; (IPC1-7): B21B27/00; C22C38/00; C23C14/00
Foreign References:
| JPH03248703A | 1991-11-06 | |||
| JPH01197007A | 1989-08-08 | |||
| JPH0966305A | 1997-03-11 | |||
| JPS61165212A | 1986-07-25 | |||
| JPS5025429A | 1975-03-18 |
Attorney, Agent or Firm:
Hirose, Shoichi (Nihonbashi Honcho 4-chome Chuo-ku Tokyo, JP)
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