Schott Ag

Schott Glas

Franz-Peter Eckes

Manfred Borens

Helmut Schoppe

Andreas Stolzenberg

Robert Ruehl

Stefen Bauer

Stefan Friedrich Melchior

Stefan Bauer

Joerg Witte

Joachim Kuester

Stefano Merolla

Janus Zborowski

Karsten V Westernhagen

Marcus Holla

Jorq Witte

Stefan Freidrich Melchior

The method provides an improved quartz glass body, especially an improved quartz glass crucible for melting non-metals, non-ferrous metals, or silicon. The quartz glass body is made by a method in which a quartz glass-water mixture is supplied to a gypsum casting mold comprising an outer part and an inner part, dried in the gypsum mold, and put under an overpressure via a system of ducts in the form of textile tubes embedded in the mold during the drying. Later a resulting green glass body is removed from the mold. At least a portion of the shaping surfaces of the inner part of the gypsum mold are surfaces of a water-impermeable substance. The method provides a cast body with a reduced tendency to crack and with a smaller open porosity.

Method and casting mold for manufacturing a quartz glass body

A method for producing permanent integral connections of oxide-dispersed metallic materials by welding. The materials or components to be connected are overlapped to form an overlapping region in a joining region of the overlapping region. The materials or components are heated below the melting temperatures of the materials and are welded to at least partially form a diffusion bond by a welding method. A noble metal foil may be between the components to be connected. The diffusion bond is heated subsequently to a temperature below the melting temperature of the materials or components and the bond is mechanically recompacted by hammering.

Method for producing permanent integral connections of oxide-dispersed (ODS) metallic materials or components of oxide-dispersed (ODS) metallic materials by welding

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Bubenheim, Germany

Franz-Peter Eckes