Schott Ag

Schott Glas

Schott Glass Technologies (suzhou) Co. Ltd.

Gottfried Haas

Bernd Hoppe

Stephan Tratzky

Junming Xue

Pengxiang Qian

Markus Riedl

Michael Siller

Wolfgang Kreger

Martin Brunotte

Klaus Quast

Folker Steden

Jonas Zeitler

Matthias Müller

Fritz Wintersteller

Heinz Dotzler

Joachim Pfeifer

Csaba Debreczeny

Leonid Schulz

Dominik Lippert

Martin Werner

Engelbert Braadt

Thomas Wedlich

Takahisa Uchida

A furnace for relieving glass products of stress is provided. The furnace has a furnace interior and a thermal element that measures temperatures in the furnace interior. The thermal element is enclosed by an enveloping tube composed of an inorganic material.

Furnace for relieving stress from glass products

The invention relates to a method for producing glass tubes with a cross section of a noncircular form by reshaping. This method includes at least providing a glass tube, heating the glass tube, providing at least one reshaping tool, which has a forming body with a forming area for reshaping the heated glass tube, the forming body including at least one open-porous material, setting a gas pressure in the interior of the reshaping tool lower than 90 kPa, so that a negative pressure is produced on the forming area, and reshaping the heated glass tube by applying a compressive force perpendicularly to the longitudinal axis of the glass tube, the compressive force being generated by the reshaping tool and being applied to the outer surface of the glass tube, and the outer surface of the glass tube being fixed by the negative pressure.

Method for producing a glass tube with a cross section of a noncircular form by reshaping

The present invention relates to a method for producing a glass body with at least one inner tube which is closed off on one side and one outer tube which is closed off at least on one side, with the inner tube being connected not coaxially with the floor of the outer tube and the inner tube comprising an opening, with the inner tube being fixed in the outer tube in such a way that the outer tube comprises a projecting portion, a floor is formed by the projecting portion on the outer tube, an opening is formed by the removal of the glass on the inner tube, and the outer tube is evacuated at the end and molten off.

Method for producing a glass body

The invention relates to a method for the interior metal-coating of glass tubes, with the metal-coated surface being a cylindrical shell. In accordance with the invention such a method comprises the following process steps:

Selective coating of the interior of glass tubes with a metallic mirror surface

The invention relates to a collector module ( ) comprising a collector pipe ( ) which has a inlet ( ) and an outlet ( ) for the heat transfer medium. Said collector module ( ) also comprises at least one co-axially cross-flown collector pipe ( ) which has a jacket pipe ( ), an absorber pipe ( ) and a co-axial pipe ( ). The aim of the invention is to produce a collector module which has good mounting qualities as well as good sealing abilities and increased endurance. According to the invention, the outlet ( ) comprises at least one hollow nipple ( ) which extends in the radial direction of the collector pipe, whereon at least one absorbing pipe ( ) is fixed in a co-axial manner, whereby at least one sealing element ( ) is arranged between the nipple ( ) and the absorbing pipe ( ). The inlet ( ) comprises at least one element ( ) for receiving the co-axial pipe. The at least one co-axial pipe ( ) is arranged in a coaxial manner inside the nipple ( ) and is pressed against the receiving element ( ) by an elastic element ( ) disposed on the end of the absorbing pipe ( ) opposite the collector pipe ( ).

Collector module

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Tirschenreuth, Germany

Gottfried Haas