Radiation is everywhere for people. Computers, mobile phones, hair dryers and copiers that we often use all have radiation. Radiation is big or small, and proper self-protection measures can put an end to the harm caused by radiation. However, what I want to introduce to you today is the radiation from optical fiber laser cutting machines. The radiation from optical fiber laser cutting machines cannot be underestimated, Especially, it can cause fatal injury to human eyes. How can we protect ourselves from radiation injury of optical fiber laser cutting machine?

How does the radiation of optical fiber laser cutting machine cause harm to human eyes?

During the processing of optical fiber laser cutting machine, the characteristics of the laser emitted can make the energy highly concentrated in space and time. The image is formed by focusing on the retina through the refractive medium of the eye, and the energy density on the retina is 104~105 higher than the incident energy density on the cornea;

Laser monochromaticity is good, and the color difference in the fundus is small. As a result of the above characteristics, extremely low laser energy irradiation, namely, the optical fiber laser cutting machine, can cause damage to the cornea or retina. Therefore, Xiao Bian warns everyone here that when the optical fiber laser cutting machine works normally, the eyes should not look directly at the exciting light source

How to avoid radiation damage of optical fiber laser cutting machine?

1. If you want to reduce the radiation of the optical fiber laser cutting machine, you must use the laser protective goggles, which are specially designed for the optical fiber laser cutting machine equipment, and can effectively reduce the radiation of the optical fiber laser cutting machine. Therefore, the staff need not be upset about this when using it, and can safely cut the workpiece; And there are many kinds of laser protective glasses, including compound, absorption, reflection and diffraction

2. In order to reduce the radiation of the optical fiber laser cutting machine, the staff can protect themselves. For example, the staff can effectively resist the radiation of the optical fiber laser cutting machine by eating more radiation resistant food. Generally, the radiation resistant food includes tomatoes, bean sprouts, carrots, animal liver and lean meat, which are all foods rich in vitamin AC and protein, so the radiation resistance effect is very good

Applicable materials of Longtai optical fiber laser cutting machine

Nowadays, the laser cutting machine has been popularized, but many people's understanding of the laser cutting machine still stays on the surface of the laser cutting machine "cutting iron like mud" and the laser cutting machine "as fast as wind".

1. Vaporization cutting

When the substrate is heated by the high power and high density laser beam of the laser cutting machine, the surface temperature of the material increases rapidly, which can reduce the problem of material melting caused by heat conduction. As a result, some materials in direct contact vaporize and disappear, and some materials are blown away by auxiliary gas.

2. Melt cutting

When the power density of the laser beam incident by the laser cutting machine reaches a certain value, the material at the beam irradiation point begins to evaporate, forming holes. Once the hole is formed, it will act as a blackbody to absorb the energy of the incident beam. The hole is surrounded by a wall of molten metal, and then the air flow coaxial with the beam carries away the molten material around the hole. As the workpiece moves, the small hole moves horizontally in the cutting direction synchronously to form a slit. The laser beam of the laser cutting machine continues to radiate along the seam, and the molten material is blown away from the seam continuously or pulsantly.

3. Oxidation melting cutting.

Inert gas is generally used for melting and cutting of laser cutting machine. If oxygen or other active gas is used instead, the material will be ignited under the irradiation of laser beam, and will react with oxygen to generate another heat source, which is called oxidation melting and cutting.

4. Control fracture cutting.

For brittle materials that are easy to be damaged by heat, high-speed and controllable cutting is performed by heating the laser beam of the laser cutting machine, which is called controlled fracture cutting. The main content of this cutting process is that the laser beam heats a small area of brittle material, causing large thermal gradient and serious mechanical deformation in the area, leading to the formation of cracks in the material. As long as a uniform heating gradient is maintained, the laser beam can guide the generation of cracks in the desired direction.

The process of laser cutting machine is determined according to the cutting materials and the finished products to be cut. With the progress of science and technology, more and more laser cutting machine processes will be excavated in the future to benefit the world.