Of course, metal welding is one of the most importantthe most dangerous for humans, because all welding work is accompanied by a constant release of harmful substances and factors. One of the most dangerous are: electric arc, bright glow, toxic gases, infrared and ultraviolet radiation. That is why, in order to maximally protect themselves from such a "bouquet" of trouble, when welding metal workers use a special protective mask, which is called - the mask welder.
Danger of electric arc
First, we note why it is so dangerous for humanselectric arc. This is in the process of such work is the basis of the fundamentals of electric arc welding. At the same time, the temperature of the metal nodes can reach 8,000 or more thousand degrees. With this heating, local melting of the steel takes place, which makes the connection very high-quality and reliable. But the "side effect" here is intensive radiation in the infrared, optical and ultraviolet range. All this glow has a very negative impact on the eyes of the worker, which can lead to various diseases and even complete loss of vision. Therefore, the welder's mask is an indispensable attribute when doing this kind of work.
At present, there are 4 main types of these devices:
- Traditional mask.
- Welding shield.
- Mask for specific works.
- Device with special lifting filter.
Absolutely each of these species is supplied thicktinted glass. Also, the welder's mask ("ASF" including) can have in its design a special filter, which includes a cover glass and a plexiglass substrate.
This tool part is made ofspecial conductive material, which in its properties is resistant to splashes of hot metal up to 8 thousand degrees Celsius, sparks and electric arc. It is best to purchase such masks that have removable mechanisms to replace this glass. The fact is that with prolonged welding, its surface is very quickly "spattered" with metal spray and it is almost impossible to see through the welding tool. Therefore, make the calculation that the device has a removable mechanism of glass (with hermetically sealed).
Below are the most popular companies that are engaged in the production of such a detail as a welder's mask:
The most expensive welder mask, and accordinglythe most high-quality in its characteristics, is a product of the firm "Chameleon". It is worth more than all the other "fellows" - about 2-2.5 thousand rubles. And this despite the fact that some types of masks can be purchased for 160-200 rubles. In general, the cost of quality parts varies from 1 to 2 thousand rubles.
When choosing, pay special attention to the fact that the mask is conveniently adjusted "under the head" and did not have too heavy weight.