Abstract

The invention relates to a method for regenerating a salt melt for a glass hardening and/or glass solidification process. The method is characterized in that at least a first regeneration material body of a first regeneration material and a second regeneration material body of a second regeneration material, which is different from the first regeneration material, is simultaneously or sequentially brought into contact with the salt melt. The invention also relates to an installation for hardening and/or solidifying glass, comprising a salt bath with a salt melt.

IPC Classes  ?

• C03C 21/00 - Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals into the surface

Abstract

The invention relates to a method for processing a glass container, in particular a glass bottle, in which the glass container is immersed in a liquid. The method is distinguished by the fact that, during the immersion and/or after the immersion, a gas is introduced into the glass container. The invention also relates to a device for processing a glass container, in particular a glass bottle, wherein the device has a vat with a liquid and means for immersing the glass container in the liquid.

IPC Classes  ?

• C03C 21/00 - Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals into the surface
• C03C 23/00 - Other surface treatment of glass not in the form of fibres or filaments

Abstract

The invention relates to a method for tempering and/or solidifying glass items, in which method a carrier, which carries at least one glass item to be tempered and/or solidified, is submerged by means of a submerging movement in a molten salt bath located in a basin, and then removed again from the molten salt bath by means of an emerging movement. The method is characterised in that the submerging movement and/or the emerging movement bring(s) about a relative movement between the molten salt bath and a regeneration material. The invention also relates to a device for tempering and/or solidifying glass items, which device comprises a basin having a molten salt bath in which a carrier having at least one glass item to be tempered and/or solidified can be submerged by means of a submerging movement and from which the carrier can then be removed again by means of an emerging movement.

IPC Classes  ?

• C03C 21/00 - Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals into the surface

Abstract

The invention relates to a glass vessel having at least one wall and manufactured from a base material which is an alkali-containing silicate glass. It is a feature of the glass vessel that at least a surface layer is enriched in potassium and depleted of sodium and/or lithium, while an inner layer, especially one directly adjoining the surface layer, is not enriched in potassium and not depleted of sodium and/or lithium, and that the glass vessel has compressive stress up to a compressive stress depth and tensile stress beyond the compressive stress depth, wherein the tensile stress rises with increasing depth up to a tensile stress maximum within the inner layer and/or wherein the progression of the tensile stress as a function of depth does not have a linear section and/or wherein the progression of the tensile stress as a function of depth does not have a section in which tensile stress is constant.

IPC Classes  ?

• C03C 21/00 - Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals into the surface
• C03B 27/012 - Tempering glass products by heat treatment, e.g. for crystallisationHeat treatment of glass products before tempering by cooling
• C03B 27/016 - Tempering glass products by absorbing heat radiated from the glass product

Abstract

The invention relates to a method for producing a glass article. The method includes the step of producing a glass body from a glass material and the further step of bringing the glass body, at a primary temperature which is at most 50 Kelvin below and at most 30 Kelvin above the Littleton softening point of the glass material, into contact with a liquid cooling agent which has a cooling agent temperature which is at least 200 Kelvin and at most 550 Kelvin below the primary temperature.

IPC Classes  ?

• C03C 23/00 - Other surface treatment of glass not in the form of fibres or filaments
• C03B 27/02 - Tempering glass products using liquid
• C03B 27/03 - Tempering glass products using liquid the liquid being a molten metal or a molten salt
• C03C 21/00 - Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals into the surface

Abstract

The invention relates to methods of increasing the strength, especially the flexural strength, of a glass article produced from a glass material. The method includes the step of heating the glass article to a first temperature above the transformation temperature of the glass material, the step of shock cooling the glass article to a second temperature below the transformation temperature of the glass material, and the step of performing an ion exchange process at the second temperature.

IPC Classes  ?

• C03C 21/00 - Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals into the surface
• C03C 23/00 - Other surface treatment of glass not in the form of fibres or filaments
• C03B 27/03 - Tempering glass products using liquid the liquid being a molten metal or a molten salt

Abstract

The invention relates to a flat glass pane made of a base material, which is an alkali-containing silicate glass. The flat glass pane is characterized in that at least one surface layer is enriched with potassium and is depleted of sodium and/or lithium while an inner layer, in particular an inner layer directly adjoining the surface layer, is not enriched with potassium and is not depleted of sodium and/or lithium; and the flat glass pane has a compressive stress up to a compressive stress depth and a tensile stress starting from the compressive stress depth, wherein the tensile stress increases as the depth increases up to a tensile stress maximum arranged in the inner layer, and/or the curve of the tensile stress does not have a linear section depending on the depth, and/or the curve of the tensile stress does not have a section in which the tensile stress is constant depending on the depth.

IPC Classes  ?

• C03C 21/00 - Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals into the surface
• C03B 27/012 - Tempering glass products by heat treatment, e.g. for crystallisationHeat treatment of glass products before tempering by cooling
• C03B 27/016 - Tempering glass products by absorbing heat radiated from the glass product

Abstract

The invention relates to a system and to a method for increasing the breaking strength and/or the hardness of glass objects. The method is characterised in that a carrier is loaded with the glass objects and then transferred successively in a plurality of transfer operations to a plurality of modules, namely at least one heating module in which the glass objects are heated to a primary temperature, a first cooling module comprising a liquid cooling means of a cooling means temperature, and a second cooling module, wherein at least one of the transfer operations involves relative movement of one of the modules relative to another of the modules.

IPC Classes  ?

• C03C 23/00 - Other surface treatment of glass not in the form of fibres or filaments
• C03B 27/02 - Tempering glass products using liquid
• C03B 27/06 - Tempering glass products using gas for glass products other than flat or bent glass plates, e.g. hollow glassware, lenses