Endress+hauser Conducta Gesellschaft Fur Mess- Und Regeltechnik Mbh+co. Kg

Endress + Hauser Conducta Gesellschaft Fur Mess-und Regeltechnik Mbh +co.

Stefan Auras

Katrin Scholz

Wolfgang Babel

Jens Voigtlaender

Sven Härtig

A method for manufacturing a glass body for a potentiometric sensor, including: loading a first spindle of a glass lathe with outer and inner glass tubes, so that the glass tubes are arranged coaxially with one another and with the axis of rotation of the first spindle, the inner glass tube and the outer glass tube each has a media-side end, and the two media-side ends have defined axial positions relative to one another; loading a second spindle with an auxiliary glass tube, so that the axis of rotation of the second spindle is arranged coaxially with the axis of rotation of the first spindle; moving the auxiliary glass tube to be contiguous with the outer glass tube; fusion joining of the outer glass tube with the auxiliary glass tube; producing a connection between the outer glass tube, or the auxiliary glass tube, and the inner glass tube; removing a remainder of the auxiliary glass tube; producing a media-side opening of the inner glass tube; and forming a media-side edge of the opening. Optionally, the method includes, additionally, the automatic blowing of a glass membrane on the media-side edge.

Method and apparatus for manufacturing a glass body

The invention concerns an automated method for producing a blown glass body, in particular a glass wall of an electrochemical sensor, wherein an immersion tube (), through which air or gas can flow, is immersed into molten glass an amount of molten glass from the molten glass mass, and wherein the () and subsequently withdrawn to remove removed glass is blown into the form of the glass body to be produced by means of the air or gas flowing through the immersion tube (), comprising the following features:&#x2014;the position of the surface () of the molten glass () in the adjustment direction of the immersion tube () is determined; an adjustment means () for the immersion tube () is controlled in correspondence with the determined position of the surface () such that the free end of the immersion tube is first immersed into the molten glass mass () up to a certain predetermined immersion depth (h) of molten glass; and then removed thereby retaining a predetermined amount&#x2014;following removal from the molten glass, the immersion tube () is loaded with a blow pressure along a blow pressure curve p(t) stored in a computer thereby blowing the glass body into the desired shape. This provides reproducible and automated production of the glass body.

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Mittweida, Germany

Stefan Auras