研究目的
To develop a new tempering process for baking colored glass samples using laser irradiation to overcome the high time consumption, energy consumption, and manufacturing cost issues associated with conventional thermal treatment.
研究成果
The study demonstrates that color-printed glasses can be tempered using CO2 and excimer lasers, achieving results comparable to conventional tempering furnaces. The laser-induced color melting on the glass surface can reduce production costs due to decreased process time. However, the furnace cannot be entirely replaced by laser beams under current conditions.
研究不足
The study is limited to the qualitative analysis of the laser burn-in process using SEM. The complete substitution of the furnace by laser beams is not yet possible, as a furnace temperature of 300 °C is still required for the tempering process.
1：Experimental Design and Method Selection:
The study uses two different laser systems (a pulsed excimer laser and a CO2 laser) for the tempering process of color-printed glass samples. The methodology includes analyzing the samples with a scanning electron microscope (SEM) to evaluate the laser burn-in process.
2：Sample Selection and Data Sources:
Standard float glass samples with a thickness of 3 mm, printed with black ceramic paste using screen printing technology, are used. The samples are dried before laser treatment.
3：List of Experimental Equipment and Materials:
The equipment includes a pulsed excimer laser (248 nm), a CO2 laser (10.6 μm), a scanning electron microscope (SEM), a pyrometer for temperature measurement, and a traversing unit with an integrated preheater.
4：6 μm), a scanning electron microscope (SEM), a pyrometer for temperature measurement, and a traversing unit with an integrated preheater.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The glass samples are preheated to minimize thermal stresses. The laser power density, preheating temperature, and exposure time are varied to achieve different final temperatures. The samples are then analyzed using SEM.
5：Data Analysis Methods:
The SEM images are analyzed qualitatively to assess the laser burn-in process and compare it with conventional tempering furnace results.
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