Adamite compound roll

Details Adamite compound roll Adamite compound roll

1986-09-12

1988-02-23

Godici, Nicholas P.

Metal founding

Product supporting or withdrawal means for continuous...

Roller

164461, 164 98, 29132, 291484D, 148 3, 148 155, 148127, 420 15, 420108, 428683, B22D 1112, B22D 1900

Patent

active

047264179

ABSTRACT:
A compound roll for rolling composed of a shell made of adamite having a carbon content of 1.4-2.5 weight % and a core made of forged or cast steel, the shell being metallurgically bonded to the core by casting an adamite melt around the already prepared core, and the shell having a large residual compressive stress. The adamite shell has a composition consisting essentially, by weight, of 1.4-2.5% of C, 0.6-0.8% of Si, 0.8-1.0% of Mn, 0.5-2.5% of Ni, 1.0-4.0% of Cr, 0.2-2.0% of Mo and the balance being essentially Fe. The residual compressive stress of the shell is desirably at least 20 kg/mm.sup.2 so that cracks are effectively prevented from penetrating into the depths of the shell, thereby preventing the breakage of the compound roll at a roll body thereof.

REFERENCES:
patent: 3455372 (1969-07-01), Yamamoto
patent: 3968551 (1976-07-01), Miyashita
patent: 4000010 (1976-12-01), Sekimoto et al.
patent: 4165407 (1979-08-01), Endoh et al.

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