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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 (Wakamatsu, 9-1, Kitahama 1-chome, Wakamatsu-ku, Kitakyusyu-sh, Fukuoka 23, 〒8080023, JP)
HATTORI Toshiyuki (Wakamatsu, 9-1, Kitahama 1-chome, Wakamatsu-ku, Kitakyusyu-sh, Fukuoka 23, 〒8080023, JP)
Application Number:
JP2019/003404
Publication Date:
August 08, 2019
Filing Date:
January 31, 2019
Export Citation:
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Assignee:
HITACHI METALS, LTD. (2-70, Konan 1-chome Minato-k, Tokyo 24, 〒1088224, JP)
International Classes:
B21B27/00; B22F3/15; B22F5/00; C22C29/08; C22C38/00; C22C38/22; C22C38/44
Attorney, Agent or Firm:
TAKAISHI Kitsuma (Kagurazaka FN Bldg. 5F, 67 Kagurazaka 6-chome, Shinjuku-k, Tokyo 25, 〒1620825, JP)
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