Stainless steel surface claddings of continuous caster rolls

Details Stainless steel surface claddings of continuous caster rolls Stainless steel surface claddings of continuous caster rolls

1995-11-06

1998-06-16

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

Producing or treating layered, bonded, welded, or...

148528, 148529, C21D 936

Patent

active

057663785

ABSTRACT:
A heat-treated cladding on the working surfaces of continuous caster rolls reduces sensitization zones. The thermal treatment applied conditions the working surface of the roll substantially uniformly at all positions around the perimeter of the roll, thereby dissolving carbide formations into a austenite solution and removing carbide formations and chromium depletion sites or sensitized zones associated with the reheat regions occurring during the welding process. The heat treatment process is accomplished without thermally affecting or altering the properties and dimensions of the base roll material, either at a substantial depth beneath the body working surface or on or beneath the roll journal surfaces.

REFERENCES:
patent: 4110514 (1978-08-01), Nicholson
patent: 4464209 (1984-08-01), Taira et al.
patent: 4482612 (1984-11-01), Kurokii et al.
patent: 4484959 (1984-11-01), Boucher et al.
patent: 4701584 (1987-10-01), Rylicki
patent: 5403994 (1995-04-01), Havas et al.
"Mechanisms of Surface Deterioration --Cladded Rolls for Continous Slab Casting --Phase I"; Chudzicki, et al., published with Proceedings of Aime Technical Conference, Oct. 18, 1994.

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