What is the working principle of laser marking machine

Compared with the traditional spraying marking method: laser marking machine is a non-contact, pollution-free market value and economic value of both products, and the traditional coating often contains toxic substances and environmental pollution, can not be used in food, medicine.

From the perspective of work efficiency and market application: laser marking machine greatly changes the working environment, greatly improves the work efficiency, not only saves human resources, but also saves a lot of time, the identification of conventional products, generally only 2-5 seconds, if the use of assembly line flying mark marking, the speed is more rapid. And from the perspective of environmental protection, it breaks through the traditional process can not be completed.

From the market cost point of view: laser marking machine after a long time of continuous improvement of technology, reduce costs, market competition and so on, laser marking machine prices have dropped significantly, the price to adapt to the acceptance of large and medium-sized enterprises, and in the performance to meet the needs of the majority of enterprises, so that laser marking machine in the future market has great space.

"Thermal processing" has a laser beam with a higher energy density (it is a concentrated energy flow), irradiated on the surface of the material to be processed, the surface of the material absorbs the laser energy, and produces a thermal excitation process in the irradiated area, so that the surface of the material (or coating) temperature rises, resulting in metamorphosis, melting, ablation, evaporation and other phenomena.

"Cold working" has a high load of energy (ultraviolet) photons, which can break the chemical bonds in the material (especially organic materials) or the surrounding medium, to the point that the material is destroyed by non-thermal processes. This cold processing has a special significance in laser marking processing, because it is not thermal ablation, but does not produce "thermal damage" side effects, break the chemical bond of the cold peel, and therefore does not produce heating or thermal deformation of the inner layer of the surface to be processed and the nearby area. For example, excimer lasers are used in the electronics industry to deposit thin films of chemicals on substrate materials, opening narrow grooves on semiconductor substrates.

Comparison of different labeling methods：

Compared with the inkjet marking method, the advantage of laser marking engraving is that it has a wide range of applications, and a variety of substances (metal, glass, ceramics, plastics, leather, etc.) can be marked with permanent high-quality marks. There is no force on the surface of the workpiece, no mechanical deformation, no corrosion on the surface of the material.

Product Application:

Can carve a variety of non-metallic materials. Used in garment accessories, pharmaceutical packaging, wine packaging, architectural ceramics, beverage packaging, fabric cutting, rubber products, shell nameplates, craft gifts, electronic components, leather and other industries.

● Can carve metal and a variety of non-metallic materials. It is more suitable for some products requiring fine and high precision processing.

● Used in electronic components, integrated circuits (IC), electrical appliances, mobile phone communication, hardware products, tools and accessories, precision instruments, glasses and watches, jewelry, auto parts, plastic keys, building materials, PVC pipes, medical equipment and other industries.

● Applicable materials include: Common metals and alloys (iron, copper, aluminum, magnesium, zinc and all other metals), rare metals and alloys (gold, silver, titanium), metal oxides (all kinds of metal oxides are acceptable), special surface treatment (phosphating, aluminum anodizing, electroplating surface), ABS materials (electrical appliances housing, daily necessities), ink (transparent buttons, printing products), Epoxy resin (encapsulation and insulation of electronic components)