Welding goggles and other eye protection equipment

Welding glasses - properties and purpose

Besides the chemical on the retina has an extremely adverse effect is too bright, unfavorable for the spectral composition of light.Such light emission can be observed with conventional, laser and other types of welds.One of the main requirements to be met by welding points (except for the main purpose), - it does not impair the visual acuity, provides a wide visual field, be light in weight, not fog up, iebe ventilated, not to cause inflammation and irritation of eyes.

In addition, it should be possible snug fit points to the surface of the skin.What is quite difficult to ensure, taking into account the differences in adaptability to anthropomorphic characteristics of the people using them.

applied glass may be different in their properties.For example, glasses for gas welding often can be equipped with different lenses dimming.As a rule, three degrees: to work in open areas, cutting and welding of medium power and high power.In addition, well, when such glasses have a special folding mechanism, enabling inspection of the weld after the cessation of work without their removal.

glass installed in protective glasses for welding, often made in the form of light filters having a certain selectivity.The use of this type of filter is designed to limit the vivid and often harmful to human vision extreme radiation, the invisible regions of the visible spectrum, infrared and ultraviolet.The direction selectivity development led to the emergence of active "switchable" light filters.

Welding Shield and helmet - high degree of protection

Besides points, is widely used welding shield .His additional protective function is the protection of all persons above factors working.For example, ultraviolet radiation spectrum allocated impacts negatively on the skin.Elevated temperatures can cause thermal burns of the skin, etc.

considered among the most protective level of protection devices provide a special helmet for welding.In this case, the complex protection of the entire head working, including respiratory and hearing.In addition, these helmets allow you to perform welding work above the welder's head, preventing it from rolling in the stream from the top of scale fragments, sparks and other things.

embodiment helmets quite a lot.Special adjustment and protective helmet, comfortable adjustable headband and face seal, air supply for breathing and even embedded solar cells or batteries, providing power systems the helmet.

Welding goggles and other chameleon species

modern defense which have become quite familiar switchable filters are used in virtually all examined types of protective equipment used for welding.Points for welding chameleon got its name thanks to the use of such filters in them.

The principle of operation is based on the auto-dimming polarization of liquid crystals under the influence of stress.A certain flexibility is achieved by using multi-layer films and permanent protection from the invisible radiation in the infrared and ultraviolet parts of the spectrum.

important characteristic due to which chameleon welding glasses have become so popular among professionals, is a switching time at the beginning of welding, when there is a bright arc.At this point, ensures maximum darkening and guaranteed control of the start of the process without the initial moment of blinding eye worker, called in the jargon "caught the bunny."

course, the choice is dictated by the nature and conditions of work.Thus, for certain types of welds in open and ventilated areas may be sufficient to use the open points with protective filters chameleon, even at such works of medium and high power need goggles and more shade.

course, to work with the risk of sparks and metal fragments spray requires a minimum of welding shield chameleon.In the context of the work above head level working with protective gas, and other similar, necessary protective helmet.By the way, of course, that the entire list of Welder protective clothing is not only in glasses, shield or helmet, it just was not mentioned.