Hearth roll with superior endurance capacity

Details Hearth roll with superior endurance capacity Hearth roll with superior endurance capacity

1995-08-23

1997-12-23

Turner, Archene

Metallurgical apparatus

Means treating a continuum of work

With heating means

428469, 428472, 428701, 428702, 432 8, 432246, C21D 100, C23C 410

Patent

active

057004234

ABSTRACT:
A hearth roll with a cermet thermal spray coating on the roll surface which is composed of a heat resistant MCrA1Y (M: Fe, Ni, Co) alloy where the amount of A1 is below 10 at. % and the combined (Al+Cr) amount is between 13-31 at. % and at least one oxide ceramic from the group consisting of MgO, MgAl.sub.2 O.sub.4, and Y.sub.2 O.sub.3.

REFERENCES:
patent: 3837894 (1974-09-01), Tucker, Jr.
patent: 4124737 (1978-11-01), Wolfa et al.
patent: 4505384 (1985-03-01), Albrecht et al.
patent: 4882689 (1989-11-01), Fukubayashi et al.
patent: 4996117 (1991-02-01), Chu et al.
patent: 5032557 (1991-07-01), Taira et al.
patent: 5070587 (1991-12-01), Nakahira et al.

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