Repairing defects in a glass or glass ceramic covering on a metal or ceramic substrate including the substrate surface
AssigneeOmeras GmbH OberfläChenveredelung Und Metallverarbeitung
InventorOliver KNAUF
Life of this patent
Estimating the term…
Abstract
The invention relates to a method for repairing at least one defect in glass or glass-ceramic coating. In this method, coating material is applied to the at least one defect by a coating method, excess coating material that protrudes is removed, the applied coating material is dried and then baked with the heat input. The invention further relates to a laser repair system for repairing defects, wherein the laser repair system according to the invention comprises at least one exchangeable pivoting device, an exchangeable heat irradiation device, and an energy supply unit.
Claims20
A method for repairing at least one defect in a glass or glass-ceramic coating, wherein the glass or the glass-ceramic coating is arranged on a metallic or ceramic substrate, and for repairing defects on the metallic or ceramic substrate surface,
- wherein the method comprises the following method steps:
- applying enamel powder or enamel slip as a coating material to the at least one defect using a coating method,
- removing excess coating material that protrudes,
- drying applied coating material,
- baking the applied coating material with heat input, said baking comprising the following steps:
- a first focused, high-energy heat input by laser irradiation with an associated melting of a radiation spot,
- a second defocused, low-energy heat input with controlled continuous cooling of the radiation spot, wherein the second defocused, low-energy heat input takes place by laser irradiation or inductively.
Dependencies are inferred from the claim text.