Immersion tube for continuous casting machines for casting liquid metal, preferably steel, comprises at least two parts, at least one outlet, which is arranged in the end portion of the parts, and a bell-shaped refractory casing

Immersion tube (1) for continuous casting machines for casting liquid metal, preferably steel, comprises at least two parts, at least one outlet (3, 4), which is arranged in the end portion (2) of the parts, and a bell-shaped refractory casing (5), which is arranged in the end portion. The casing is detachably attached on the surface (8) in the lower portion of the immersion. Independent claims are also included for: (1) a device comprising at least one surface of the bell-shaped casing with a material comprising 79% zirconium dioxide, 4.5% silicon dioxide and 29% carbon; and (2) continuous casting of liquid metal, preferably steel in a mold with the immersion tube, which is surrounded in the lower portion by the bell-shaped casing, where the bell-shaped casing is detachably attached in a prefabricated manner at the point in the lower portion of the immersion tube. Mit der vorliegenden Erfindung wird ein Tauchrohr (1) zum Stranggießen von flüssigen Metallen vorgestellt, das von einem lösbar befestigten feuerfesten glockenförmigen Mantel (5) umgeben ist. Die lösbare Verbindung des glockenförmige Mantels (5) an der Oberfläche des unteren Teils (2) des Tauchrohres (1) kann mit verschiedenen technischen Mitteln auf verschiedene Art und Weise bewirkt werden, z. B. mittels eines Gewindes oder einer einfachen Steckverbindung. Die äußere Form des glockenartigen Mantels (5) ist frei wählbar, z. B. rund, oval oder mehreckig und richtet sich nach der Art des Anwendungsfalls.