1. What are the hazards of not wearing a welding mask when an electrician is welding?
In the process of electrician welding, the direct threats to the eyes and facial skin are: arc radiation, rays , high frequency electromagnetic fields and thermal radiation. Among them, arc radiation ranks third among all harmful factors, and it is very harmful to workers. In the industrial welding process, the heat source is above 1000 degrees, which can generate strong light, ultraviolet rays, infrared rays and other rays, and the crystal in the human eye is the most sensitive to rays. Strong ultraviolet rays can cause electro-optic ophthalmia and have eye pain, tearing, photophobia, foreign body sensation, etc. In severe cases, cataracts can be caused.
The mirror group of the welding mask can filter out all rays such as ultraviolet rays and infrared rays, so that the eyes of welding workers can be fully protected. At the same time, since the material used in the welding mask has heat resistance, the user can be protected from heat radiation. The automatic dimming welding mask is also equipped with an outer protective film before the mirror group, which makes the mirror group not damaged by spatters during welding, and the outer protective film is easy to replace, which improves the service life of the automatic dimming welding mask.
Second, what is the principle of the welding protective mask
The welding workpiece can be clearly seen before the arc starts, and the arc starts Instantly darkens automatically. Light-controlled welding mask is a new type of welding mask that applies light detection technology and liquid crystal technology. The principle is that the internal photoelectric sensing circuit detects the light (mainly infrared or ultraviolet) generated during electric welding, and after amplification, triggers the control circuit of the liquid crystal, and according to the preset light transmittance, the liquid crystal of the mask ( Transmissive TN liquid crystal) to apply the corresponding driving signal. The liquid crystal as a light valve will change its transmittance. It will filter out infrared and ultraviolet rays that are harmful to human eyes from welding. At the same time, the strong light is reduced to the weak light that the human eye can bear. Compared with the traditional welding mask, it not only protects the health of the operator, but also can clearly observe the whole process of welding.
3. What are the advantages of automatic dimming welding mask compared to ordinary welding masks
As welding protective equipment, the advantage of automatic dimming welding mask is that it can be extremely It greatly helps to improve the quality of welding, and since the auto-darkening welding mask is not a hand-held welding mask, it directly frees your left or right hand, allowing you to operate with both hands.
In addition, the automatic darkening welding mask is darkened immediately before the welding arc starts, so that the welder can clearly see the welding point, which solves the previous problem of blind welding to protect the eyes . The use of automatic dimming welding masks for electrical welding can greatly improve the quality of welding, so that the quality of products can also be greatly improved.
