Patent · US Active

Submerged nozzle comprising continuous circumferential wavy ribs

US12311436B2 · kind B2 · utility

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0References

20Claims

0Family size

Assignee

Vesuvius Group, S.A. · BE

Inventors

Martin Kreierhoff · Stadtlohn, DE
Marcel Rave · Ghlin, BE
Johan Richaud · Dundas, CA

Key dates

Filing date	Nov 24, 2022
Grant date	May 27, 2025
Priority date	—
Expiry date	Nov 24, 2042

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22D41/54
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A submerged nozzle for casting molten metal into a mould, is provided that includes an erosion resistant sleeve (2) made of a material resistant to erosion provided over a tubular portion and extending along a longitudinal axis (Z). The erosion resistant sleeve includes at least one annular protrusion (2p), extending radially outwards beyond a recessed portion (2r) of the erosion resistant sleeve over the whole circumference of the erosion resistant sleeve (2), the at least one annular protrusion (2p) follows a periodic wavy trajectory oscillating between one or more tip-points situated closest to the first end and a corresponding number of one or more valley-points situated closest to the second end, the periodic wavy trajectory being defined by an amplitude (A) greater than 5 mm and a periodicity (P) comprised between 1 and 20 tip to valley to tip periods per 2π rad.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.