Enabling 'Dual Carbon', RFH Nanosecond Lasers for Stone Engraving

Stone is a widely used material with dual functions of construction and decoration. In order to maximize the commercial value of the development of stone, now merchants will also engrave text, patterns, etc. on the stone according to the needs of consumers to increase the added value of the product.

The traditional stone carving process can no longer meet the current consumers' pursuit of carving beauty. For example, the traditional methods of grinding, sandblasting, carving, etc. have many disadvantages. The pattern and text are not consistent, and the edges are not delicate and smooth, giving people a rough feeling. For some stones with high hardness, traditional The process is prone to cracks during processing, resulting in product scrap. Moreover, from the perspective of environmental protection, these processes are prone to produce waste residue, dust, and waste water, and have disadvantages such as high energy consumption and high pollution.

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With the rapid development of laser technology, the application industry of laser has become more and more extensive. With the continuous exploration of laser application in the stone processing industry, now stone carving can also be processed by laser. RFH nanosecond solid-state laser, narrow linewidth, high peak power and other characteristics, "match" the needs of the stone processing industry.

Since the hardness of the stone varies according to the specific material, in order to carve a certain depth of marks on the surface of the stone, the laser needs to have a very high peak power, so that the laser beam can damage the surface of the material when it touches the surface of the stone. chemical bonds, which in turn vaporize instantaneously, leaving "engraved" traces.

The average output power of the nanosecond solid-state laser is more than 5W, and the output wavelength is 355nm. It is a cold light source and can be well absorbed by the material. The pulse width is less than 20ns, the heat-affected zone is small, and micro-cracks are not easily generated during engraving. The beam quality is excellent (M2<1.2). With accessories such as field lenses, micron-level light spots can be obtained. The peak power is high, and the engraving accuracy and depth are high. foot, and does not produce dust.

In view of the harsh environment of stone processing, the nanosecond solid-state laser has taken environmental factors into consideration from the beginning of its design, and the unique resonator design ensures the stability under high power and high repetition frequency. The uniquely designed high-precision electric control platform obtains a high-quality beam through a transmissive spatial filter module while maintaining high pulse stability. These designs enable this laser to meet industrialized 7*24 applications, improving quality and efficiency for users.