Work roll for metal rolling

Details Work roll for metal rolling Work roll for metal rolling

1990-06-20

1992-01-21

Cuda, Irene

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29 32, C21D 148

Patent

active

050817604

ABSTRACT:
A compound roll for a metal rolling mill having both excellent resistance to a thermal shock crack and excellent wear resistance includes a core shaft made of low alloy steel and an outer layer consisting of high speed tool steel having a composition, by weight percent, essentially of 0.5 to 1.5% of C, 0.5 to 3.0% of Si, 1.5% or less of Mn, 2 to 7% of Cr, 1 to 5% of Mo, 0.5 to 2.0% of V, up to 2.0% of W and balance essentially Fe. The outer layer is formed on the outer surface of the core shaft by an electro-slag method. The outer layer is subjected to a water jet spray quenching and tempering at 300.degree. C. or higher, preferably 450.degree. C. to 550.degree. C.

REFERENCES:
patent: 4000010 (1976-12-01), Sekimoto et al.
patent: 4191599 (1980-03-01), Stickels et al.

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