In the realm of product identification, the importance of clear and precise markings cannot be overstated. In particular, the ability to mark transparent plastic materials has become a crucial requirement for various industries. Enter the awe-inspiring world of 5W UV laser module marking, where technology meets elegance to create indelible impressions on transparent plastic surfaces.  

In recent years, with the continuous development of technology, ultraviolet lasers have been widely used in many fields. One application is black lettering on yellow heat shrink tubing. This technology is widely used in various industries such as electronics, communications, medical and military.

First of all, the ultraviolet laser is a high-energy laser beam with a wavelength range of around 355nm and has the characteristics of high precision, high speed and high efficiency. In the field of 3D printing, UV lasers are mainly used to solidify liquid photosensitive resin to form a solid laminated structure. Among them, 3W and 5W ultraviolet lasers are two common power specifications, which refer to the laser output power of 3 watts and 5 watts respectively.

RFH F9 series Water cooled UV laser's power range is 3w-5w .Comparing with its kinds, F9 series UV laser features with rugged sealed cavity, extremely compact size, simple and robust, high stability, high efficiency, high reliability and excellent laser beam quality.Its compact design suggests no necessity in building big light path, which greatly reduces space and cost and makes it easy to be installed into UV laser marking machines. In addition, F9 series cavity structure has more stability and more excellent scalability, which means the same laser cavity can produce multi-power lasers , and the stability of different power ranges is greatly improved.

In recent years, with the continuous development of science and technology, low-power 5W ultraviolet lasers have become more and more widely used to blacken PCB circuit boards. This technology can effectively concentrate the laser energy in a small area, causing the temperature of the area to rise rapidly, achieving the effect of instantly melting and vaporizing the copper foil on the PCB circuit board. Below, this article will introduce in detail the application of low-power 5W ultraviolet laser to blacken PCB circuit boards from several aspects.