Glass products engraving must choose uv laser 355nm

Glass products have been widely used in construction, medical, chemical, household, electronics, instrumentation, nuclear engineering and other fields. Glass is fragile, so engraving on the surface of glass products requires high craftsmanship. To mark patterns or text information on the surface of glass materials, it is a good choice to use a laser marking machine.

Multiple laser irradiation method

A single laser irradiation is used to produce a mark with a clear outline on the glass surface. After a few days, the laser expands to the area near the original mark to form debris. After multiple irradiations, the area adjacent to the marked area is heated by thermal conduction, so that these areas form Stress gradient, thereby reducing the possibility of secondary cracking, this method is very effective in marking soda lime glass and borosilicate glass. Small glass bottles containing liquid medicines and glass cups in life can be marked with this method.

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Discrete point forming annular crack method

Use a series of annular cracks to form text, barcodes, square or rectangular codes, and other shape code patterns. The use of this method is generally used more, and the CO2 laser marking machine sets a parameter of marking and coding on the glass to produce fewer cracks. Discrete points appear to form annular cracks. Glass develops low-density annular cracks through heating and cooling cycles. When the glass is heated, it expands and squeezes the surrounding material. When the temperature rises to the softening point of the glass, the glass rapidly expands to form a dome of low-density material that protrudes from the glass surface.

Using CO2 laser marking machine, merchants can mark exquisite patterns on the glass surface to improve the grade of glass.

crack-like surface cracking method

A process of heating and cooling is used to change the surface of the glass affected, which is not immediately visible, but only after a little pressurization begins to produce tortoise-like cracks along the laser marked area. The cracked surface glass not only has the properties of safety glass, but also has the effect of ice cracking and non-transparency. Therefore, it is widely used in interior decoration, such as partitions, background walls, and glass furniture, and is deeply loved by consumers.

Laser online marking machine marking glass

The laser can form an extremely thin beam, and achieve fine marking on glass materials. Any complex text, graphics, images, trademarks, LOGOs, barcodes, QR codes, production batch numbers, autographs, etc. can be marked by laser. machine to complete.

The home UV laser marking machine is developed with a 355nm UV laser. Compared with the infrared laser, the machine adopts the third-order intracavity frequency doubling technology. Compared with the infrared laser, the 355 UV light focusing spot is extremely small, which can greatly reduce the mechanical deformation of the material. And the processing heat effect is small, because it is mainly used for ultra-fine marking and engraving, and is suitable for applications such as food, pharmaceutical packaging material marking, micro-hole drilling, high-speed division of glass materials, and complex pattern cutting of silicon wafers. field.