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Patent Searching and Data


Title:
CEMENTED CARBIDE COMPOSITE ROLL AND MANUFACTURING METHOD OF CEMENTED CARBIDE COMPOSITE ROLL
Document Type and Number:
WIPO Patent Application WO/2019/151402
Kind Code:
A1
Abstract:
This cemented carbide composite roll has an inner layer (1) formed from an iron-based alloy, an outer layer (3) formed from a cemented carbide which is metal-bonded to the outer periphery of the inner layer, a shaft member (4) metal-bonded to at least one axial end of the inner layer (1), and a shaft end member (5), wherein the cemented carbide of the outer layer (3) contains 55-90 parts by mass WC particles and 10-45 parts by mass of a binder phase formed from a specific composition having Fe as the main component; the inner layer (1) is formed from an iron-based alloy containing greater than or equal to 2.0 mass% total of at least one element selected from Cr, Ni and Mo, and the shaft member (4) and the shaft end member (5) are formed from an iron-based alloy containing less than or equal to than 1.5 mass% total of at least one element selected from Cr, Ni and Mo.

Inventors:
OHATA TAKUMI (JP)
HATTORI TOSHIYUKI (JP)
Application Number:
PCT/JP2019/003404
Publication Date:
August 08, 2019
Filing Date:
January 31, 2019
Export Citation:
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Assignee:
HITACHI METALS LTD (JP)
International Classes:
B21B27/00; B22F3/15; B22F5/00; C22C29/08; C22C38/00; C22C38/22; C22C38/44
Foreign References:
JP2003342668A2003-12-03
JPS5669304A1981-06-10
JPS62280305A1987-12-05
JPS5144502A1976-04-16
JP2004243380A2004-09-02
JP2004167503A2004-06-17
JPS6083708A1985-05-13
JP2003342668A2003-12-03
JPH05171339A1993-07-09
JP2000219931A2000-08-08
Other References:
See also references of EP 3747564A4
Attorney, Agent or Firm:
TAKAISHI Kitsuma (JP)
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