Introduction
Glass is a non-crystalline inorganic non-metallic material, transparent and smooth, it can be used to make artifacts, can also be used as a modification of doors and windows and other crafts. At present, glass has become an important material in modern daily life, production and science and technology. With the development of society, environmental protection awareness, people put forward higher requirements for glass products gross. UV laser processing glass burring has the advantages of controllable texture, high efficiency and stability, convenient equipment operation, simple process, etc. It will gradually replace or substitute the traditional process processing methods.
Comparison between laser glass frosting process and traditional sandblasting process
Glass has a high chemical stability, and chemical etching gross chemical reagents used in a certain chemical corrosiveness, the environment, equipment and operators of the greater harm; sandblasting / sandblasting gross so that the production yield is reduced, the efficiency of slowing down the process control is harsh, and will also have a certain degree of pollution to the environment. The use of nanosecond solid-state ultraviolet laser for glass surface grossing, can effectively solve the pain points of the traditional processing technology, with fast and efficient, non-polluting, environmentally friendly, low loss characteristics, can promote the technical innovation of glass processing technology, to achieve certain economic value.
15W laser and 30W laser glass grossing efficiency comparison
Nanosecond solid-state ultraviolet band of 355nm, the glass of the ultraviolet band laser absorption rate is high, due to the focusing spot is small, high energy density, the use of ultraviolet processing glass grossing more delicate.
Due to the hard and brittle nature of glass, if the laser energy parameters are not properly controlled, it is easy to lead to the expansion of glass microcracks, heat cracking or serious chipping of the surface edges. In order to pursue different haze, transmittance, roughness and surface aesthetics, it is necessary to select and adjust the appropriate laser process parameters.
In the processing of the same grossing effect, respectively, the use of 15W and 30W two different power laser grossing efficiency comparison, according to the test results can be seen, the use of high-power laser grossing efficiency is higher, 30W laser compared to the 15W laser efficiency increased by 158%, and 30W laser has a larger single pulse energy, in the processing can increase the output frequency, and then improve the processing speed. Processing speed, so in the application of glass burring higher efficiency, more cost-effective.
30w UV product overview:
- Water-cooling circuit design for each hot spot, adopting the optimal cooling scheme to realize high-precision cooling;
- Special doping of conventional crystals to enhance the thermal conductivity of gain crystals and effectively control the thermal effect of crystals;
- Multiple rounds of thermal simulation and practice to design a structural scheme with optimal thermal stability;
- Reasonable coupling scheme and cavity design, the product power output is stable.
