Schott Ag

Schott Glas

Michael Siller

Gottfried Haas

Thomas Kuckelkorn

Stephan Tratzky

Nikolaus Benz

Matthias Mueller

Reinhard Maennl

Fritz-Dieter Doenitz

Matthias Müller

Martin Werner

Engelbert Braadt

Heinz Dotzler

Joachim Pfeifer

Guenter Bauer

Leonid Schulz

The method of making a vacuum tube collector or X-ray tube, which includes a matching glass-metal joint, includes providing a glass tube () made of a glass with a composition, in percent by weight on the basis of oxide content, consisting of BO, 8-11.5; AlO, 5-9; NaO, 5-9; KO, 0-5; CaO, 0.4-1.5; balance, SiO; and bonding, preferably fusing or melting, an end portion of the glass tube () with a metal part () in order to bond or attach the glass tube to the metal part, thus forming a long-lasting glass-metal joint. The method of making the glass-metal joint is performed without using intermediary glass compositions of varying thermal conductivities. In the case of the vacuum tube collector the method can provide the basis for an automated manufacture of the vacuum tube collector.

Method of making a glass-metal joint, glass-metal joint made thereby and method of making a solar energy tube collector with said joint

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

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Leonberg, Germany

Michael Siller