Application of UV laser in marking of Mara tape
Release time:2022.06.10
Views:170
Mara tape, also known as silicone Mara tape and fire cow tape, is a high-temperature, high-pressure and flame-retardant insulating adhesive tape made of polyester film (PET film) as the base material and coated with acrylic polymer pressure-sensitive adhesive. It is a single-sided tape with a thickness of about 0.1mm. It is widely used in the insulation of the electronic industry, such as transformers, motors, capacitors and other motors and electronic components. It can also be used for the wrapping of lithium batteries, For example, wrapping between the protective plate and the electric core plays a role of fixation, insulation and fire prevention.
 
In the past, the traditional labeling or full-automatic ink-jet printer was mainly used for marking. With the growth of years, and in the high temperature environment, the label is easy to fall off, resulting in potential safety hazards, or the code spraying is easy to become ambiguous, losing the significance of anti-counterfeiting and tracing.
 
Laser marking is more advantageous. It is directly vaporized on the surface of the object by high-energy density beam. It is a permanent mark, can not be erased, and has no consumables. It has high marking efficiency.




The ultraviolet single photon energy is high, with a pulse width of 25ns, and the heat affected zone is very small, which greatly reduces the thermal deformation of the material; It has high beam quality (M2 < 1.2), and the focused spot diameter is very small, which can reach about 10um. It can mark words, graphics, images, bar codes, two-dimensional codes, product serial numbers, and autographs on some small electronic components.

 
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