Laser marking machine manufacturers analyze the principle of handheld laser marking machine laser inkjet printer

Laser marking machine is a laser beam that permanently marks the surface of various materials.

The effect of marking is to expose the deep material through the evaporation of the surface material, or to 'engrave traces' through the chemical and physical changes of the surface material caused by light energy, or to burn off part of the material through light energy, revealing The required etching pattern, text, etc..

There are two principles of laser marking machine, namely cold working and hot working.

'Hot working' refers to the The high-heat laser light (concentrated energy flow) is irradiated on the surface of the material to be processed, and the surface of the material absorbs the energy of the laser, thereby causing a thermal excitation process in the irradiated area, and then the temperature of the material surface (or coating) rises , resulting in metamorphosis, melting, evaporation, ablation and other phenomena.

'Cold working' refers to (ultraviolet) photons with high load energy, which can interrupt Chemical bonds within a material (especially organic materials) or surrounding substances that cause the material to be destroyed by athermal processes.

This cold working has special significance in laser marking processing because it is not thermal ablation, but It is a cold peeling that does not produce 'thermal damage' side effects and breaks chemical bonds, so it does not produce heating or thermal deformation on the inner layer and nearby areas of the processed surface.

Ruxin Mingsheng UV Laser Marking machine

For example, in the electronics industry, it is used to deposit thin films of chemical substances on substrate materials, and to open narrow grooves on semiconductor substrates.

Comparison of different marking methods Compared with the inkjet marking method, the advantages of laser marking and engraving are: a wide range of applications, a variety of substances (metal, glass, ceramic, plastic, leather, etc. ) can be marked with permanent high-quality marks. There is no force on the surface of the workpiece, no mechanical deformation, and no corrosion on the surface of the material

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