Surface treatment of a rolling mill roll

Details Surface treatment of a rolling mill roll Surface treatment of a rolling mill roll

1988-01-29

1989-07-11

Silverman, Stanley

Coating processes

Electrical product produced

Welding electrode

156643, 21912163, 21912164, 21912165, 21912166, 21912168, B05D 306

Patent

active

048471127

ABSTRACT:
A process for surface treatment of a rolling mill roll coated with a coating of metal wherein the coated roll is surface heated, e.g. by a continuous laser beam in a helical path to melt the coating and a thin superficial layer of the roll thereby forming an uninterrupted molten alloy layer comprising at least a part of the coating and of the superficial layer of the roll, cooling the alloy layer, and marking the roller by an intermittent laser beam, e.g. following the same helical path with a given delay to produce local fusion of the alloy layer and of the roll surface beneath the alloy layer and form micro-craters having bases and rims integrated, after solidification, with the alloy layer.

REFERENCES:
patent: 4400408 (1983-08-01), Asano et al.
patent: 4401726 (1983-08-01), Gnanamuther
patent: 4434189 (1984-02-01), Zaplatynsky
patent: 4537793 (1985-08-01), Kehres et al.
patent: 4566938 (1986-01-01), Jenkins et al.
patent: 4684781 (1987-08-01), Frish et al.
patent: 4746540 (1988-05-01), Kamasaki et al.

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