355nm UV laser cold light source marking enamel
Nov 11 , 2022355nm UV laser cold light source marking enamel
Enamel, also known as enamel, is a composite material in which inorganic vitreous materials are melted and condensed on the base metal and firmly combined with the metal. It is safe, non-toxic, corrosion-resistant, not afraid of high temperature, easy to use, and has good thermal conductivity. It is resistant to falling. In the last century, almost every household had enamel products, mainly for eating utensils and washing utensils in daily life, such as enamel cups that are used for drinking water or brushing teeth, and often used to ridicule "There is always an enamel A basin for lard."
With the evolution of technology, plastic products, aluminum products and stainless steel products are emerging in an endless stream, with high yield and novel styles, which have gradually squeezed the market space of enamel products. .
In fact, enamel products have not declined or disappeared. On the contrary, through process improvement, enamel products have higher technical content, quality grade, and high added value. The application field is extended from home use to outdoor, to medical care. Utensils, architectural decoration, etc., to name a few. At the same time, combined with the modern laser marking process, enamel products have also quietly abandoned the colorful "glaze color" of the past, giving enamel products a new charm.
Laser marking is a new type of non-contact processing, which is a chemical reaction that vaporizes or changes color of the surface material by acting on the surface of the material with a high-energy density laser beam, thereby leaving permanent marks (patterns, trademarks and words) a method of marking. There are many types of lasers for laser marking. The 355nm ultraviolet nanosecond laser of Nafei Optoelectronics can make finer and higher precision marking on the inorganic glass material on the outer layer of enamel products.
The inherent advantages of 355nm UV light are its "cold" processing characteristics and easy focusing characteristics. It has high single-photon energy and high material absorption rate. When the laser beam acts on the surface of the material for marking, the thermal effect is small, so the 355nm UV marking process is also called "cold" processing, which is especially friendly to inorganic glass. It is not easy to cause it to be broken and affect the overall appearance. The pulse width of about 25ns makes the heat-affected zone of the marking extremely small, and it also adds a lot to the high-quality marking. The 355nm ultraviolet light is particularly easy to focus, and the excellent beam quality (M2<1.2) can make the spot diameter of the output laser in the order of microns, with high precision, fine line edges, and high contrast of marked graphic information. The enamel utensils combined with the sense of fashion and modernity were born, giving enamel products a larger living space and stronger competitiveness.
In addition, the non-contact processing of laser marking can also prevent the enamel material from being damaged by mechanical stress; the permanent mark brought by laser marking is not easy to wear, and repeated cleaning or burning will not make the mark The engraved graphics are distorted, which is beyond the reach of traditional inkjet or screen printing methods, and is more efficient. After drawing the graphics and text on the PC side, you can quickly complete the marking on the enamel products through the marking equipment. , The product has good consistency, strong repeatability, no mold, less consumables, and low cost.
With modern craftsmanship and equipment, modern aesthetics are attached to enamel products, and the utensils that have faded out of people's sight are brought back to ordinary alleys. I hope that every enamel product that has been laser marked can re-emerge the warmth of the years. story.
