Roll or roller – Concentric layered annulus – Specific composition
Patent
1993-02-03
1996-07-16
Cuda, Irene
Roll or roller
Concentric layered annulus
Specific composition
492 58, 2989532, B73P 1500
Patent
active
055362303
ABSTRACT:
A composite working roll, in particular for a roughing or finishing stand of a hot strip rolling mill, said working roll comprising a core of a metal selected from the group consisting of iron and steel, an outer zone of chromium-vanadium steel and a bonding zone between said core and said outer zone, wherein said steel of said outer zone contains 1.3 to 2.2% by weight carbon, 8 to 16% by weight chromium and 4 to 7% by weight vanadium, the remainder being constituted by iron and other elements which are usually present.
Preferably the steel of the outer zone contains 9 to 14% chromium and 5 to 6,5% vanadium and the vanadium content decreases with increase in the carbon content.
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Patent Abstracts of Japan, vol. 9, No. 282 (M-428) (2005), 9 Nov. 1985, & JP, A, 60124407 (Kubota Tekko K.K.) 3 Jul. 1985.
Patent Abstracts of Japan, vol. 10, No. 218 (M-503) (2274), 30 Jul. 1986, & JP, A, 6156711 (Hitachi Ltd) 22 Mar. 1986.
Bocquet Jacques
Werquin Jean-Claude
Chavanne-Ketin
Cuda Irene
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