Device and process for the remelting of glass
AssigneeSchott Glas
InventorsAndreas Lanqsdorf, Hildeqard Romer, Paul Kissl
Life of this patent
Estimating the term…
Abstract
The invention relates to a device for the remelting of glass bars: with at least one receiving shell, which has an inlet at its upper end for the receiving of the glass bar, and an outlet at its lower end for the letting-off of melt; with a crucible which is located underneath the receiving shell, is open at the top, and has a runoff at the bottom; with a heating arrangement for heating the contents of the crucible; for the avoidance of a tapering of the glass stream the under-edge of the receiving shell is located at the level of the liquid surface or higher; after the crucible there is engaged a
Claims12
Device for the remelting of glass bars (2);
- 1.1 with at least one receiving shell (1) which has an inlet at its upper end for the receiving of the glass bar (2), and an outlet at its other end for the running-off of the melt;
- 1.2 with a crucible (3) which is located underneath the receiving shell (1), is open at the top and has a runoff (3), at its bottom;
- 1.3 with a heating arrangement (5) for heating the crucible contents;
- 1.4 the under-edge of the receiving shell (1) is located, for the avoidance of a tapering of the glass stream, at the height of the liquid level (7.1) of the melt bath (7) or above it;
- 1.5 following the crucible (3) there is engaged a runoff shell (3.3);
- 1.6 to the runoff shell (3.3) there is assigned an arrangement for the generation of drops (needle or suction feeder).
Process for the remelting of glass bars, with the following features:
- 9.1 A glass bar (2) is introduced into the upper end of a receiving shell (1);
- 9.2 underneath the receiving shell (1) there is made available a molten bath (7) with a surface (7.1);
- 9.3 the receiving shell (1) is positioned in such manner that its lower edge is located at the height of the surface (7.1) or above it;
- 9.4 the lower end of the glass bar (2) is heated to a temperature above the softening temperature of the glass;
- 9.5 the melt-off process is controlled in such manner that a continuous melt stream enters the molten bath (7) with avoidance of a constriction;
- 9.6 melt is drawn off from the molten bath (7) by means of an arrangement for drop generation.
Dependencies are inferred from the claim text.