Best method for glass marking

Posted by xingsihui on December 12th, 2019

Glass products are widely used in construction, daily life, medical, chemical, household, electronics, instrumentation, nuclear engineering and other fields. Glass has fragile properties, so engraving on the surface of glass products requires high technical requirements. Laser marking machine is non-contact processing, short processing time, thin marking line, suitable for pattern or text information marking on the surface of glass material. There are several ways to mark glass with a laser marking machine.

Multiple laser irradiation

A laser beam is used to generate a contoured mark on the surface of the glass.After a few days,the laser spreads to a region near the original mark to form a fragment,and then multiple radiations are used to heat the area adjacent to the marked area by heat conduction,so that these areas are formed.The stress gradient, which reduces the possibility of secondary breakage, is very effective in marking soda-lime glass and borosilicate glass using this method.Small glass bottles containing liquid medicines and glasses in daily life can be marked using this method.

Discrete point forming ring crack method

A series of circular cracks are used to form text, bar codes, square or rectangular codes, and other shape code patterns. The CO2 laser marking machine using this method is more commonly used. The CO2 laser marking machine sets fewer cracks caused by the marking parameters of a glass. There are discrete points forming ring cracks. The glass generates 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 the low-density material on the convex glass surface.

Cracked surface cracking

The process of heating and cooling is used to change the surface of the glass that is being applied.this method is not immediately visible. After a slight pressurization, it begins to generate cracks along the laser marking area.The cracked surface glass not only has the property of safety glass, but also can play the role of ice cracking and incomplete transparency.Therefore,it is widely used in interior decoration,such as partitions,background walls, and also can be used for glass furniture, and is deeply loved by consumers.

The laser can form a very fine light beam,and fine marking can be realized on the glass material. Any complicated characters,graphics,images,trademarks,LOGOs,barcodes,two-dimensional codes,production batch numbers,autographs,etc.can be marked by laser.Machine to complete.

With the CO2 laser marking machine, merchants can mark the surface of the glass with fine patterns and glass.

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Joined: December 2nd, 2019
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