(19)
(11) EP 0 510 598 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
14.07.1993 Bulletin 1993/28

(43) Date of publication A2:
28.10.1992 Bulletin 1992/44

(21) Application number: 92106860.7

(22) Date of filing: 22.04.1992
(51) International Patent Classification (IPC)5: C22C 38/36, C22C 33/02, B22F 3/14
(84) Designated Contracting States:
DE FR

(30) Priority: 22.04.1991 JP 90280/91

(71) Applicant: HITACHI METALS, LTD.
Chiyoda-ku, Tokyo (JP)

(72) Inventors:
  • Ohsue, Takuya
    Kitakyusyu-shi, Fukuoka-ken (JP)
  • Noda, Akira
    Kitakyusyu-shi, Fukuoka-ken (JP)
  • Fukuzawa, Hiroshi
    Kitakyusyu-shi, Fukuoka-ken (JP)
  • Korenaga, Itsuo
    Kitakyusyu-shi, Fukuoka-ken (JP)

(74) Representative: Patentanwälte Beetz - Timpe - Siegfried Schmitt-Fumian - Mayr 
Steinsdorfstrasse 10
80538 München
80538 München (DE)


(56) References cited: : 
   
       


    (54) Wear-resistant compound roll


    (57) The wear-resistant compound roll having a sintered shell portion (4) having good wear resistance is produced by sintering an alloy powder consisting essentially, by weight, of 1.0-3.5 % of C, 2 % or less of Si, 2 % or less of Mn, 10 % or less of Cr, 3-15 % of W, 2-10 % of Mo, 1-15 % of V, and balance Fe and inevitable impurities, at a temperature equal to or higher than the temperature from which the alloy powder starts to be melted.






    Search report