Welding goggles and other types of eye protection for the welder

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Welding goggles - properties and function of

In addition to the chemical, the eye retard has an extremely unfavorable effect too bright, unfavorable in terms of spectral composition, light. Such light radiation can be observed with conventional, laser and other types of welding. One of the main requirements that welding glasses( except for the main purpose) should meet is not to impair visual acuity, provide a wide visual field, be light in weight, do not fog up, i.e.be ventilated, do not cause inflammation and eye irritation.

In addition, it should be possible to closely fit the glasses to the surface of the skin of the face. That is quite difficult to provide, taking into account adaptability to the differences of anthropomorphic features of people using them.

The glasses used can be different in their properties. For example, glasses for gas welding very often can be completed with glasses with different darkness. As a rule, three degrees: for open field work, cutting and welding medium power and high power. In addition, it is good when such glasses have a special folding mechanism, which makes it possible to inspect the welding site after stopping work without removing them.

Glasses installed in protective glasses for welding, are most often performed in the form of light filters having a certain selectivity. The use of this type of filters aims to limit the bright, and often harmful to human sight, radiation of the extreme, invisible regions of the visible spectrum: infrared and ultraviolet. The direction of the development of selectivity has led to the appearance of active "switchable" light filters.

Welding shield and helmet - increased degree of protection

In addition to spectacles, the welding shield is widely used. Its additional protective function is to protect against all of the above factors of the person working. For example, the allocated ultraviolet radiation spectrum affects negatively the skin of the face. Increased temperature can cause thermal skin burns, etc.

Among the protective devices under consideration, the helmet for welding provides the greatest degree of protection. In this case, comprehensive protection is provided for the entire head of the worker, including the respiratory and hearing organs. In addition, these helmets allow you to perform welding operations above the head of the welder, protecting it from the flow of dross scraping from above, sparks and other things.

There are a lot of options for performing helmets. Special adjustments and safety helmet, comfortable adjustable headband and face seal, air supply for breathing and even built-in solar panels or elements providing power to the helmet systems.

Welding sunglasses chameleon and other modern protection

Switching filters that have become quite familiar are used in practically all types of protective equipment used in welding. Points for welding chameleon got their name due to the use of such filters in them.

The principle of automatic darkening is based on the polarization of liquid crystals under the action of stress. A certain universality is achieved by using multilayered and permanent anti-invisible radiation protection films in infrared and ultraviolet spectral parts.

An important characteristic, thanks to which the chameleon welding glasses have become so popular among professionals, is the switching time at the very beginning of welding, when a bright arc arises. At this moment, the maximum darkening and guaranteed control of the beginning of the process is ensured, without the moment of the blind eye of the employee, called "caught by a rabbit" in professional jargon.

Of course, the choice is dictated by the nature and conditions of the work performed. So, for the performance of certain types of welding in open and ventilated areas, it may be sufficient to use open glasses with chameleon protective filters, already with such medium and high power work, closed glasses and more darkening will be needed.

Of course, for work with the risk of spray sparks and metal fragments, at least a welding chameleon shield is needed. In conditions of work above the head level working with the use of protective gas media and other similar, a protective helmet is needed. By the way, by itself, that the entire list of protective clothing a welder does not consist only in glasses, a shield or a helmet, he just was not mentioned.

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