Patent · US Expired

Immersed outlet for casting metal

US5916472A · kind A · utility

1Cited by

5References

14Claims

0Family size

Assignee

Mannesmann AG · DE

Inventors

Ulrich Urlau · Moers, DE
Herbert Forster · Schorndorf, DE
Wolfgang Reichelt · Moers, DE
Jurgen Schemeit · Langenfeld, DE

Key dates

Filing date	Sep 22, 1997
Grant date	Jun 29, 1999
Priority date	—
Expiry date	Sep 22, 2017

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22D41/50
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention is directed to an immersion nozzle for casting metal, especially steel, in plants for the continuous casting of thin slabs. On order to provide an immersion casting pipe that is easy to manufacture, has a long life, and enables the liquid metal to flow out in a uniform manner, it is suggested, according to the invention, that the pour-in part (11) is a pipe having a straight-surface front mouth (12), and the pour-out part (21) is constructed from plane-surface wall elements (22, 23). For this purpose, the circular cross-sectional area (A.sub.R) of the pour-in part (11) is in a relationship to the rectangular free cross-sectional area (A.sub.E) of the pour-out part (21) such that A.sub.R /A.sub.E .gtoreq.1.7.

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