How to choose a welder's shield

How to choose a mask or shield for welding?

As you know, the work of a welder is associated with dangerous factors, such as blinding light, ultraviolet and infrared radiation, toxic fumes and hot metal. Therefore, compliance with safety regulations is not just a formality, but a vital necessity. A welding shield or mask is perhaps the most necessary protective equipment used during welding work, as it protects the eyes, face and, of course, the respiratory system.

The quality of a welding helmet affects not only the health of the welder, but also the quality of work, so the choice of this protective equipment is a very serious matter.

Welding shield

The welding shield is designed quite simply - it is equipped with a light filter and a handle by which the person doing the welding holds it to protect his eyes. As a rule, such a mask is included with the welding machine.

During the work process, the welding shield can be easily removed from the face and the quality of work can be checked. This, perhaps, is the main advantage of such a mask, but as for work in which it is necessary to use both hands, then in this case the shield is not suitable.

Regular mask

A regular welding mask has an advantage over a shield because it is attached to the head, leaving both hands free. Until recently, this mask model was considered the most popular.

The mask, if necessary, rises up, revealing the face and making it possible to inspect the work, and falls back simply by nodding the head.

Of course, using such a mask at work, the welder has the opportunity to use both hands, but when it is raised up, there is a danger of injuring the eyes, fighting off the slag that collects on the seam during welding.

Welding mask with lift-up filter

Such a mask can provide more reliable safety. Even when the filter is raised, the eyes still remain covered by a plastic shield, which means that work such as grinding or beating slag is no longer dangerous.

Welding mask for specific work

Welding work that is carried out in poorly ventilated areas or involves working with alloys containing hazardous substances such as manganese, zinc or chromium should only be carried out with special protective equipment. A special mask, similar in design to a gas mask, is equipped with an air supply device. Therefore, it prevents harmful smoke and fumes from entering the respiratory system.

What you need to know when choosing a welding mask

It is known that a welding mask consists of two main parts - a housing and a filter. Often these components are sold in one set, but you can also purchase them separately.

The welding helmet must be made in accordance with GOST, and also consist of a special material that does not conduct current and is resistant to hot splashes. The shape of the mask should protect against welding radiation and sparks. Most masks meet all the necessary requirements, but welding shields do not.

Source: http://www.SvarkaCentr.ru/articles/kak-vybrat-masku-ili-schitok-dlya-svarki/

How to choose a welding mask: CHAMELEON or welding filter (welder review)

Prices for a simple filter and “Chameleon” vary significantly.
The main question: what kind of work and in what volume are you going to do ?

If it’s a one-time use, or around the house, the first of the listed options – a welder’s shield – is quite suitable. You can choose the most suitable option according to your taste, work characteristics and ideas about the means of protection.

The choice is extensive. There are masks on sale that differ in: - appearance, - design features

- the body material used.

Here are some “talking” examples:

Review of the mask NN-10

NN-10 with folding glass

NN-10 with a folding filter is a variant of the most ordinary mask. Provides eye protection with a properly selected filter.

Suitable if you are busy performing the same type or one-time welding work and you are not bothered by the need to manually select the optimal filter that corresponds to the emergence of new working conditions.

It has all the advantages of modern personal protective equipment: made of non-flammable plastic, comfortable fit on the head and a folding filter, light weight.

Are you not involved in professional welding work and it’s time to update your equipment? It's definitely not worth overpaying. This is no longer the same old cardboard that constantly fell at the most inopportune moments. And the price is quite reasonable for an “amateur”.

Read the article on the website: Do-it-yourself chameleon mask repair

NN-U1

Welder mask NN-U1

Shch1, NN-U1 has all the advantages of NN-10, but does not have the ability to fold back the filter, which significantly affects the cost.

Shch1, NN-U1 are two times cheaper and their cost is the minimum possible. The shield reliably protects the welder's face from infrared radiation of the arc and splashes of molten metal. Despite the fact that complete protection is guaranteed, as when using expensive masks.

Leather mask NAHKIS FLIP-FLAP

Leather mask NAHKIS FLIP-FLAP

And finally, the NAHKIS FLIP-FLAP leather mask (manufactured by Evermatic, Finland) speaks for itself. Comfortable, protected with special impregnation. Weightless, allows you to work in hard-to-reach places.

Chinese version

Leather mask from China without name

The mask fits perfectly on the head. There is Velcro on the back for easy fixation. It is also intended for working in nooks and crannies where it is impossible to get to with a standard “helmet”. It will be useful especially for shipbuilders, shipbuilders, those who work on welding pipelines of intra-house and intra-basement systems, when repairing a car, etc.

That is, wherever you have to work in cramped conditions, in some closed containers or in a space limited by various metal structures, where you simply cannot crawl. This mask is not for daily wear, but in some cases it can be very helpful.

It may not be used, it may last for six months or a year, and one day it will greatly save the nervous system and time.

The mask is made of split leather, fits your head well and follows its shape. Split leather is a fairly durable material and, thanks to a special salt impregnation, reliably protects from UV and IN rays, as well as from metal splashing. You should not purchase very budget models; choose a product that has an acceptable price-quality ratio.

It can be equipped with either regular protective glass or automatically darkening glass. The mask is very convenient to use; for example, you can put it in the pocket of your overalls together with the leggings.

If welding work is carried out professionally and takes up the entire working day, then “Chameleon” cannot be done without. A light filter that automatically adjusts to any lighting conditions will help you get the job done as efficiently as possible, without much strain on your eyes.

Protective equipment, again, is selected depending on the expected working conditions and the personal preferences of the welder. Their range is unusually large, but there are some that are especially popular.

NN-12

Welder mask НН12 CRISTALINE

НН-12 CRISTALINE PREMIUM - "Chameleon" type with an automatically darkening filter. This filter automatically adjusts to any working conditions.

Here, as a rule, you just need to familiarize yourself with its settings, which will allow you to achieve the maximum degree of comfort during operation. NN-12 meets the requirements of GOST and TU.

Review of the mask Chameleon NN-12

Lightweight, comfortable, durable protective helmet for welding. No matter how many times I drop it, even if it falls spontaneously, no matter what! The view is panoramic because the window is large. In short, for all occasions. She is the best assistant both in production and in the wild. No matter what conditions you cook in, this mask always comes out on top.

What is important: if there are several positions at work, then the darkening does not trigger the arc from colleagues. In other masks your eyes will suffer.

There are also manual adjustments. You can customize it for yourself. In general, the mask is very popular in terms of price-quality, reliable, functional, recommended and tested by welders. And the service guarantee is 15 years, they don’t just give it out, it’s a worthwhile thing.

Speedglass mask

Speedglas mask

“Chameleons” from Speedglas have been on the welding equipment market for a long time. The filters were developed through testing at shipyards.

A special feature of the masks is a patented air exhaust system and the presence of additional windows for lateral vision. But the most important element is the high-impact glass that protects the light filter.

Review of KEMPPI Beta 90 X

Kemppi beta 90 X

“Chameleon” KEMPPI Beta 90 X (Kempi) is reliable and “cool” for professionals.

It has its own price and it corresponds to the level of the product.

Tested by welders, the Beta 90 X is one of the best in the line of professional welding helmets with superior performance. What else can be said? The cost of a product does not always indicate its quality. This rule may be true when collaborating with little-known manufacturers. Well-known companies use the motto in their marketing: “Quality products have their price!” This applies to this Finnish brand.

KEMPPI DELTA 90 Freshair masks

Kempi masks DELTA 90 Freshair

And finally, for work in hazardous conditions, KEMPPI DELTA 90 Freshair.
Many enterprises often carry out work that produces toxic fumes. When dismantling and recycling containers in which petroleum products, chemicals or organic substances were stored or transported. Even during normal welding, fumes that are harmful to life are released. In such conditions, new personal protective equipment for respiratory, visual and hearing organs are successfully used.

In rooms with high temperatures, additional air supply increases productivity.

The portal of welding equipment in St. Petersburg presents the most complete range of welding masks and shields that comply with GOST. Come in .

Source: http://svarka-master.ru/vybor-maski-chameleon-svetofiltr/

How to choose and use a welding helmet?

Reading time: ≈5 minutes

When talking about a welder, we first of all imagine a master wearing a protective mask. A protective mask is an essential attribute of any welding equipment. It is designed to protect the welder from burns and ultraviolet radiation. It would seem that, given its simple design, this item of protection should not raise questions. But it's not that simple.

In this article we will tell you everything about welding helmets. This is a brief instruction for beginners on choosing and using a mask.

general information

A welding helmet is a protective item for welding work that protects the welder from the negative consequences of the welding process. The mask protects not only the eyes, but also the neck, respiratory tract, and face. Failure to use a mask may result in complete or partial loss of vision. Also, a welding helmet is often referred to simply as a “welding helmet” because it covers not only the face, but also the head.

Most welding helmets have a viewing hole that allows the welder to observe the welding process. The hole is covered with tinted glass or plastic. Sometimes special filters that react to light are used.

Welding glasses

Welding glasses are the simplest type of protective mask. There are open (more like ordinary glasses, but with special lenses) and closed ones. Closed ones are put on the face and fixed on the head with an elastic band. Tinted polycarbonate or mineral glass is used as a filter. Most models have a function that prevents the windows from fogging.

These glasses only protect the eyes, not the face and neck. Therefore, they are intended only for performing auxiliary work.

Welding helmet

A welding helmet or welding shield is a protective item that you have probably seen many times. It completely covers the welder's face, is worn either over the entire head, or is used in the hands. Welding shields come with handles (when the welder himself holds the mask to his face while welding), or with a head mount. The mount can be in the form of a headband, or in the form of a helmet, on which the mask itself is put on.

Chameleon mask

A separate type of welding helmet or welding shield is the “Chameleon” mask. This is the most advanced type of mask. Instead of the standard tinted glass, the Chameleon has a special LCD screen built into it. It catches the electric arc and adapts itself to the radiation, darkening or brightening the viewing hole. Some models may have manual adjustment.

Selecting a welding helmet

Before purchasing the mask you like, find out what its viewing angle is. Also ask the seller how much light it diffuses. If you wear glasses, then select special masks designed to work with glasses. Before purchasing, try on the mask; it should be comfortable to use. You can buy a shockproof model if you doubt its safety. Make sure the mask has a quality certificate.

Also pay attention to what the mask is for.

If the mask is marked with the letter “E”, this means that it is suitable only for electric welding work. The letter "G" means "gas welding work". "B" stands for "auxiliary". For short-term, infrequent work, inexpensive welding glasses are suitable. And if you cook for a long time and often, then it is better to purchase a “Chameleon” mask. There are also masks with forced air supply and with automatic darkening.

We do not recommend ordering masks from China, as their quality often leaves much to be desired. Better pay attention to well-known manufacturers. For example, for ESAB welding helmets. Also great choices would be the Aurora welding helmet, Elitech welding helmet, Foxweld welding helmet, Optrel welding helmet, Redb welding helmet, Tecmen welding helmet, Bars welding helmet, Jackson welding helmet and Resanta welding helmet.

If you are interested in specific models, we can recommend the following: Fubag Ultima 9 welding helmet and Kemppi Beta 90 welding helmet.

Features of application

Before you start welding, the welding helmet must be inspected. Make sure the structure is not broken and the mask is suitable for use. To check the filter, hold the flame of a match or lighter to it. The filter should immediately darken.

If you find damage to the filter or glass, then the mask cannot be used. Also, do not use the Chameleon mask without protective glasses. We recommend wiping the mask with a clean cloth before welding.

Source: https://svarkaed.ru/oborudovanie-dlya-svarki/detali-i-prisposobleniya/kak-vybrat-i-ispolzovat-svarochnuyu-masku.html

Welding helmet or shield: what to choose?

Welding work is associated with dangerous factors: the welder’s health is threatened by blinding light, infrared and ultraviolet radiation, hot metal, toxic fumes. This is why following welding safety rules is vital. The most important means of protecting the eyes, face and respiratory system during welding work are a shield and a mask for the welder.

With lifting filter

A safer option for welder PPE. Even with the filter raised, the eyes remain protected by a plastic shield.

"Chameleon"

Chameleon welding helmets have become a real hit among welders despite the high price. This is the type of protection that is recommended to buy for those who intensively engage in welding. The filter in it is equipped with sensors that, when a bright welding arc is detected, instantly darken the filter display in automatic mode. When the welding process is completed and there are no flashes of light, the filter becomes transparent: you can check the quality of the seam without removing the protective product.

What to look for when choosing?

When choosing a suitable mask model in a store or online, you should pay attention to a number of parameters:

• optical class;
• viewing area;
• filtration system;
• filter marking.

When purchasing, make sure that there are no gaps between the product and the filter. Check whether the dimming system operates smoothly. Evaluate the number of sensors that affect the response speed, if any, in the selected model, and power sources: the availability of replacement batteries is important.

In general, the choice depends on your personal preferences. In the summer, it is much more pleasant to work with a visor than with a helmet. But only a high-tech mask provides the maximum level of protection. In any case, the product should fit as tightly as possible, and you should be comfortable working in it.

Source: https://uralkds.ru/svarochnaja-maska-ili-schitok-chto-vybrat

How to choose a welding mask - recommendations from experts

14.02.2018 11:43:48

In order for welding work to take place without harm to the cornea of ​​the eyes, you can use many different devices. The best way to preserve your own vision and not expose it to the harmful effects of bright flashes and ultraviolet radiation is to use special masks for welding.

These devices have been known since time immemorial, but modern models are several orders of magnitude superior to their predecessors, which were used 10-15 years ago.

  It is for this reason that in order to get a suitable model at your disposal and not overpay for unnecessary characteristics, you must approach the choice of a welding mask consciously.

The best manufacturers of welding masks - which company to choose

Currently, there are a huge number of welding helmet models on the market from a variety of manufacturers. When choosing such a tool, you should give preference to products from well-known, reputable manufacturers of construction equipment, as well as those companies that are specifically engaged in the production of professional welding equipment. In general, we can recommend products from the following manufacturers for purchase:

Understanding and choosing the best option is not difficult. All you need is to carefully study the characteristics of a particular model and determine whether it suits your operating conditions or not.

Operating principle and design of a welding helmet

A welding helmet is a special protective device designed to perform a number of protective functions:

1. Protecting the cornea from flashes of bright light and ultraviolet rays, which, with constant exposure, can lead to deterioration and even loss of vision;

2. Eye protection from scales formed during metal welding in the form of small slag particles;

3. Protection of the eyes and respiratory system from caustic and toxic gases released during the welding process;

4. Thanks to the fixation on the head, a correctly selected mask frees up the welder’s second hand, which makes the welding process much more convenient and handy;

The design of any, even the simplest, welding mask includes two main elements:

1. A special casing that covers the welder’s face, head and part of the neck while working;

2. A special viewing window with an installed light filter that protects against ultraviolet radiation, bright flashes and rebound scales. Its design is such that the welder has the opportunity to observe the process - he sees the seam itself, as well as the contours of the surfaces being welded;

3. Depending on the design of a particular model, the manufacturer can install many additional functions, the most significant of which are:

4. A control element that regulates the degree of darkening of the filter;

5. Anatomical fixing element for mounting on the head;

6. A special panel designed to charge the built-in batteries from the flash during welding;

Classic welding masks

Devices known since Soviet times. Despite the simple, and even primitive design, they cope with their basic functions quite well. The casing of such masks is made of plastic or pressed cardboard (the second option is lighter and better to use), and ordinary black glass, inserted into special grooves, is used as a light filter.

• Easy to operate;
• Possibility of replacing the filter with an analogue one with a higher or lower indicator;
• Good protection from major sources of danger;
• Low cost;

• Low durability - cardboard models swell when exposed to moisture;
• Insufficiently comfortable head clamp;
• Plastic models are heavy and rigid;

Chameleon masks

Advanced analogues of the above-described models, which use a special liquid crystal panel sensitive to the light source as a light filter. During welding, it becomes as dark as possible, protecting the welder’s eyes from flashes of bright light and exposure to ultraviolet radiation.

As soon as the process stops, the mask automatically brightens, and the welder can personally observe the results of the work done. The entire circuit is powered by an electrical element - a battery or an accumulator and allows you to adjust the brightness directly while making a weld.

For this purpose, a special regulator is used, which is convenient to adjust even with welding gloves.

• Convenient to use;
• Convenient head support that does not cause discomfort even during long-term use;
• Availability of warranty for many popular models;
• Possibility of automatic and manual brightness adjustment;
• Durable and practical housing;

• High cost of good models;
• Low efficiency of the LCD panel in sub-zero temperatures;

Masks equipped with forced ventilation

Professional models designed to work in particularly difficult, harmful or life-threatening conditions. We can say that these devices combine a chameleon mask and a classic respirator, which is fixed on a special waist belt.

It has a built-in compact electric motor that sucks in air, as well as a filter element that separates harmful particles.

These devices are highly specialized and not every welder needs them, but to work in hazardous conditions one cannot do without them;

• Easy to use, sealed;
• Excellent filter parameters and wide viewing angle of the viewing window;
• High quality air filtration;

• High price;
• Cumbersome design;
• The need to carefully monitor the condition of the filter, as well as the power source from which the electric motor operates;

Welding helmet selection options

Dimensions of the viewing window

Everything here is quite simple: the larger the viewing window, the better the overview and visibility of the objects the welder is working with. In addition to the classic models, which are 90 millimeters in length and 30-40 millimeters in height, you can find masks with a larger window size, up to 130x60, on sale.

Overall dimensions and weight of the mask

In this case, more does not mean better: a heavy mask causes a lot of inconvenience and does not contribute to fruitful work. If welding work is sporadic and irregular, this parameter can be neglected. If there is a constant need for this device, the less weight the better.

Type of filter and degree of darkness

Budget models of masks use special tinted glass as a light filter, the degree of darkness of which varies quite a lot. It is measured in numbers and varies from No. 1 to No. 5. The higher the number, the darker the specific glass. For example, filter No. 5 is used when working outdoors, while No. 1-2 are widely used for welding in dark rooms.

Things are somewhat different when it comes to chameleon masks. The LCD panel in such devices is adjusted using a special slider, and the degree of darkness is measured in DIN and can vary from 5 to 15 units. Here the situation is different - the higher the value, the less dark the panel has.

Source: https://expertology.ru/kak-vybrat-masku-dlya-svarki-rekomendatsii-spetsialistov/

Protective shields. Selection rules

• Description and characteristics
• Technical requirements
• Criterias of choice

The design and technical requirements for shields are regulated by GOST 12.4.023-84.SSBT. The basic design is quite simple and consists of a body, frontal protective and parietal headbands. Modification elements are allowed: visor, attachment to a work helmet, forced ventilation, light filter, movable glass holder, handle, extended screen.  

The body can be made of various materials: polycarbonate, non-flammable plastic, organic glass. Depending on the type of materials used and manufacturing technology, shields are designed for different purposes: from mechanical impacts (impacts of solid particles), from radiation, from splashes of dilute alkalis and acids, from sparks and splashes of molten metal, and universal. A separate category is welding shields. Their main distinguishing characteristic is the presence of a light filter with the ability to adjust the degree of darkness.

Technical requirements

According to the requirements of the standard, face shields must be made of materials that have passed the state sanitary and epidemiological inspection. The weight of the shield can vary from 250 to 620 grams, depending on the design features.

For ease of use, head straps should be able to be smoothly adjusted to fit the circumference of the head. The width of the tapes themselves cannot be less than 18 mm.

An important requirement for materials is resistance to open fire. The burning rate e must exceed 1.25 mm/s.

In addition, all materials used must have such an important property as dielectricity, which allows the use of panels in electrical installations without risk to life.

High-quality shields are equipped with sight glasses with a wide view and can be easily replaced without the use of any special tools.

Criterias of choice

Naturally, the most important selection criterion is the purpose of the shield, since models designed to protect against dust and small fragments are completely useless where protection from infrared radiation is needed. It is necessary to familiarize yourself with the labeling, where all important characteristics are indicated through symbols.

For example, the designation UN indicates that the model is universal and suitable for all types of work. The set of letters НБХ indicates the chemical resistance of the colorless case and the presence of a head mount. KBH means that the shield has an attachment to the helmet and a colorless, chemical-resistant body.

Details about decoding symbols can always be obtained from sales consultants.

An equally important criterion is compliance with the interstate standard. The availability of information about such compliance speaks for itself - samples of this batch have passed all the necessary tests and meet the highest quality requirements.

Purchasing uncertified products is fraught with the most unpleasant consequences - from fines for violating labor safety rules to serious injuries among workers.

Factors such as comfort and the availability of convenient additional devices cannot be ignored. Thus, the presence of soft pads allows you to literally not feel a foreign object on your head and completely concentrate on your work. The ability to adjust the tilt of the screen in multiple ways should also not be underestimated, since this function allows you to improve your visibility and perform work faster and better.

A conscientious manufacturer is another important point that plays a decisive role in choosing a face shield. Among Russian companies, one can highlight OJSC Suksun Optical-Mechanical Plant ROSOMZ, which produces a variety of modifications of face shields under the VISION® brand. All of them are manufactured using the most advanced technologies and meet high quality and efficiency requirements. You can order shields from this manufacturer from Energia LLC, which is a long-time partner of ROSOMZ.

Source: https://enerplus.ru/blog/sredstva-individualnoy-zashchity/zashchitnye-shchitki-pravila-vybora/

Gas welder glasses. how to keep your eyes healthy? — Tool Master

To be able to make high-quality seams, the welder must clearly see the weld pool and skillfully control the processes occurring in it.

Since the light from hot metal is very bright, one of the basic safety rules when welding is to wear eye protection. They also include welder's goggles.

What they are, and what the best models include, is discussed below.

Using glasses

Since when working with an electric arc, ultraviolet waves, identical to the sun's rays, actively emanate from it, prolonged exposure of the skin to them leads to burns, blisters, and serious injuries.

To protect your face and eyes from the harmful radiation of electric welding, you must completely cover them with a welding helmet. Work without this accessory may cause corneal burns and loss of vision.

When welding with a transformer, inverter, or semi-automatic machine, it is strictly forbidden to wear glasses.

Gas welding does not emit UV waves, so there is no danger of damaging the cornea or burning the skin with just one hit of light. At the same time, there are other factors from which vision must be protected. Therefore, gas welding goggles are suitable here. They are lighter, more comfortable and cheaper than most masks. If you only have to work with a torch or cutter, you can save money and buy gas welder glasses.

What should we protect from?

Despite the absence of ultraviolet radiation, gas welding has its own harmful factors from which the organs of vision must be protected. Here are the main ones:

• Heat. The burner torch creates temperatures up to 3000 degrees. This is sufficient for welding or cutting most metals. During such work, a stream of hot air blows on the worker’s face. The mucous membrane dries out quickly and the eyes get tired. Quality control ability and productivity are reduced. Good glasses are heat-resistant and allow you to work throughout the day.
• Dust. When applying seams with an acetylene torch, a high temperature is achieved by supplying a stream of oxygen. The outlet pressure can reach 5-10 atmospheres. This raises fine dust into the air, which can get into the eyes and cause irritation, tears, or even injure the membrane. Glasses for gas welders have a sealed design, which differs from sunglasses. Working in them protects your eyes from dust swirling in the welding zone.
• Bright light. Hot metal has a very bright glow. The welder needs not just to look at the pool, but to control what is happening in it, and evaluate the quality of the convergence of the edges, the height of the applied bead of filler material, and prevent defects in the form of burns. You can make one seam without protective accessories, but everyday manipulation of the torch will quickly tire your eyes. For this purpose, light filters are selected, the darkening level of which is set based on the illumination of the workplace.
• Scale. The weld pool and the filler wire fed into it periodically “shoot” small sparks and slag particles. If you “drown” the burner torch too much into the metal, then pops and splashes also occur. Welding glasses must have glass that is thick enough to withstand the impact of a splinter. This is another argument against regular sunglasses that beginner welders mistakenly use.

Types of glasses

Now there are several models of gas welding glasses, where each specialist can choose the most suitable one for himself. The cheapest are protective accessories with a metal frame and cloth material around.

It is quite heat resistant, soft against the skin, and this design easily folds into a pocket. The glass has a double structure for direct and side views. Fastening is carried out on an adjustable elastic band.

To assess the quality of the seam, they will need to be removed from view.

A more expensive option would be a rigid frame with a folding frame. It has round light filters installed, and for a “clean” look you just need to lift them up without removing the main frame. The disadvantage of this version is less visibility and compactness. Storage of the accessory requires a case.

The most expensive representatives of protective equipment will be chameleon glasses. They are shaped like a diving mask. Only instead of ordinary glass there is a screen with liquid crystals. In an inactive state, they transmit light in a similar way to solar optics.

When a bright flash appears from the burner, the crystals turn perpendicularly and cover the entire surface of the glass. A light filter is formed. The disadvantage of the model is poor performance at temperatures of -10.

The crystals freeze and the device begins to work poorly.

How to choose

When choosing gas welding glasses, you should pay attention to a number of features that will ensure comfortable work and reliable protection:

• The thickness of the glass should be from 2 mm to 3 mm. Such material will withstand the impact of scale and protect the eye.
• The level of darkness must be selected depending on future operating conditions. For an outdoor environment, No. 3 is suitable, but in a workshop it is worth putting No. 4 and No. 5.
• Since you spend a lot of time wearing glasses, they must provide good visibility. This way, the work will be completed faster and you won’t have to often remove them from your head to look at something.
• The frame material adjacent to the skin should not cause irritation.
• The elastic band that provides fixation is selected so as to securely fasten the glasses without putting pressure on the head.
• The frame must have ventilation. The welder gets hot when working, and the glass begins to “sweat”. Poor visibility reduces quality and productivity. Small holes on the sides are enough to remove moisture.
• The filter should be easy to remove if you need to look at the seam.
• The low weight of the entire structure will make it easier to wear all day long.

Welding glasses must be worn when working with a torch or cutter. Using the tips above will help you choose the right model for yourself.

Source: https://cs-important.ru/tehnika/ochki-gazosvarshhika-kak-sohranit-zdorove-glaz.html

Welder protective mask

Increasing the efficiency of welding machines involves not only expanding their functionality. Manufacturing companies strive to make the devices as accessible as possible to non-specialists who can carry out welding operations at home. This is the reason for the development of protective equipment.

Household models of such devices emit intense ultraviolet radiation; sparks are inevitable during operation, and the most dangerous side effect is splashes of molten metal.

Accordingly, the future user is faced with the question: “How to choose a welder’s mask that can reliably protect against unpleasant consequences during the work?” To do this, you need to familiarize yourself with the offers of the modern market.

Classic mask

Models of this type were until recently considered the optimal solution for a welder. What distinguishes it from the previous version is the possibility of fixing it on the head by means of fastening. Also, the master can evaluate the result during the work by lifting the mask.

After that, she lowers herself with a simple nod of her head. Among the advantages of this type of welder's mask are ease of handling during the work process and an unoccupied second hand.

But there is also a disadvantage, expressed in the lack of eye protection when lifting the mask.

Masks with lifting filters

Such models can be considered as the latest modification of traditional masks with light filters. Their fundamental difference is the presence of a plastic shield in the design, which protects the eyes even when the filter is raised.

This innovation allowed operators to perform related operations, including grinder cutting and slag beating. At the same time, the protective filter has also noticeably improved, which, in addition to darkened glass, includes a cover layer and plexiglass as a substrate. With the development of technology, this model also faded into the background.

It was promoted by the “Chameleon” welder’s mask, reviews of which note its convenience, high degree of safety and functionality.

Features and design of the “Chameleon” mask

The filters of such masks use liquid crystal polarization technology. The design of the protective screen assumes the presence of a liquid crystal layer between the polarization films. During the welding process, the current voltage adjusts the parameters of the LCD layer, preventing the passage of unwanted light fluxes.

Modern filters can use different numbers of liquid crystal layers. In addition to them, the screen includes a filter designed to work with ultraviolet and infrared spectra. Its function is in no way connected with the LCD layers and operates autonomously.

Also, the “Chameleon” welder’s mask is equipped with sensors that recognize the arc, electronic control devices, and is also equipped with batteries in the form of batteries and accumulators.

Characteristics of the Chameleon filter

The basis of the mask is a filter block, the thickness of which does not exceed 1 cm. Standard parameters for length and width: 9 x 11 cm. The weight of the filter is no more than 100 g, which allows it to be integrated into most models of Russian and foreign welding helmets. As additional protection, the filter is also equipped with plastic backing inside and outside.

The key operating parameter of the Chameleon is the response period to ensure reliable eye protection. In the latest models, this time is less than 1 millisecond, which is one of the best indicators compared to competing masks. But this time is relative, since it depends on the characteristics of the environment.

For example, a “Chameleon” welder’s mask in subzero temperatures will not be able to provide a sufficient darkening rate. The lower temperature limit for operating such filters is -50 degrees.

But for the sake of fairness, it is worth noting that when working in the cold, the inside of the mask still provides noticeable heat, provided by the filter heated by the welding arc.

Filter adjustments

First of all, modern welding requires the ability to adjust the shade. The arc can have different levels of brightness - this depends on the current strength and, in general, on the parameters of the work process. In the standard version, the glass for the welder's mask provides a filter darkening within the range of 9-13 DIN. When not darkened, the filter has a tint level of 3-4 DIN.

No less important are the sensitivity characteristics, the settings of which will determine the operation of the device. The master adjusts the sensitivity of switching on and off, focusing on the radiation of the heated material and the same brightness of the arc. This option can also be useful during welding in the sun - in this case, it helps eliminate the risk of untimely activation of the light filter.

More advanced models provide other adjustment options, including changing the angle of sensory perception of the arc. By the way, the number of sensors may vary, which directly affects the quality of work. For example, the FUBAG Chameleon welder's mask in the 992450 series has four sensors, through which you can more accurately monitor the state of the arc.

Optics parameters

The quality of optical performance is perhaps one of the main criteria for choosing a light filter. The model may well have a whole range of options and adjustment capabilities, but if the optics themselves are implemented poorly, even the wide functionality will be useless. Therefore, a welder’s protective mask with a reliable and durable light filter is more effective at work than its analogue with a lot of settings and several layers of visually attractive, but not always useful, replaceable glasses.

You need to pay attention to the following characteristics:

• Optics class. The clarity of the image depends on it. For example, in first-class models, distortion of objects is eliminated;
• Light scattering. This parameter determines the level of transparency of the filter;
• Homogeneity. Adjusting the darkening of the filter largely depends on the uniformity of the radiation - this is the homogeneity of the optics;
• Degree of corner darkening. This indicator determines the dependence of the depth of darkness on the angle at which viewing is performed.

All of the listed properties can belong to one of three classes. Manufacturers mark their models with the designation of the parameters that a particular Chameleon welder’s mask has. User reviews and expert opinions confirm the undoubted advantage of optics with first-class light scattering, homogeneity and degree of angular dimming.

Other selection criteria

Before purchasing, you should take into account the parameters of the visible area, which will allow you to more reliably assess the quality of work. There is an opinion that the vastness of the visible area is an advantage of the mask. This is partly true, but it is important to understand that a large area affects the strength of the filter - the smaller it is, the more reliable it is.

It is also necessary to correlate the type of welding operations and the conditions for their implementation with the characteristics of the welder’s mask and its filter. Modern models are often designed as universal ones. For example, a model with a specific filter can be used in both argon-arc welding and automatic welding operations, and will successfully cope with stick electrodes.

But there are exceptions, so you should pay attention to the labeling.

Fitting

Of course, the technical parameters and functionality of welding masks are the primary selection criteria. But if the mask does not correspond to the basic dimensions of the head, then its use will negate all the advantages of the device.

For this reason, the welder's mask must be selected taking into account the dimensions, overall design of the headband, weight, mounting methods and sizing options. Particular attention is paid to planting depth and angle of inclination. It would be nice if the mask also allowed you to adjust the interval between the filter and the head.

The adjustment system must be strong, reliable and at the same time ergonomic. Sometimes it makes sense to provide additional features, for example, space for a respirator.

Review of manufacturers

Despite the high demand for high-quality and technologically advanced welding masks, this segment still remains highly specialized. Among European manufacturers, the companies SPEEDGLAS, BALDER and OPTREL stand out. The products of these brands are represented by high-quality and functional models with DINplus certificates.

You can judge the capabilities of European versions using the example of the mentioned German company FUBAG. Thus, already in the basic version, the Optima welding mask has a light transmission range of 11 DIN and provides sensitivity adjustment. Also interesting are the products of the Chinese manufacturer TECMEN, which also produces first-class welding helmets at reasonable prices.

In particular, the professional model of the ADF-820 series has a filter with an expanded window and high-quality optics.

Reviews of “Chameleon” masks

Light filters of this type have undoubtedly advanced welding masks far in terms of safety and manufacturability in general. Compared to traditional models, they win in all respects. For example, owners note that their hands can remain free from the beginning to the end of the work process, additional heating is provided in the cold, and there is no question of exposure to radiation - the filters cope with their function perfectly.

But there are also disadvantages that a welder’s mask also has. Reviews from users who regularly deal with welding work criticize the glass for causing scratches and quickly draining the battery. On the other hand, you can insure against such phenomena even at the stage of selecting the device.

The problem with batteries must be solved by optimally selecting the capacity of the power source in a particular model. The amount of charge can be quite high, so this minus should most likely be attributed to an oversight during the purchase process. The situation with the formation of scratches is more complicated.

As a rule, they occur on the protective surfaces of plexiglass, and the only solution may be to abandon this material.

Source: https://www.syl.ru/article/193678/new_zaschitnaya-maska-svarschika-kak-vyibrat-maska-svarschika-chameleon-otzyivyi

How to choose a welding mask

The light at the end of the electrode is best viewed through the window of a special light filter. The electric arc of welding has the same spectrum as the sun, but is in close proximity to the worker's eyes and skin. Bright light can cause burns to the retina, dry out the cornea, lead to severe tanning and damage to exposed skin. The welding mask protects the skin of the face from hot metal splashes, and also protects the organs of vision and breathing.

What does the mask consist of?

Decades of experience have already formed the ideal form of protective equipment for a welder. However, there is no limit to perfection, and the design of the welding shield is enriched with new products that make it possible to better protect workers from harmful influences.

A standard welder's mask consists of three parts:

• Frame. The main advantages of a good case are strength, lightness, flexibility, and resistance to high temperatures. The welder's shield prevents metal splashes from getting on the face, ears, neck, and removes clouds of harmful fumes and smoke from the face.
• Headband. The purpose of the headrest is to hold the body in the desired position and provide lifting by turning the head.
• Light filter. This is the most important detail, the characteristics of which determine whether the worker sees the weld pool and distinguishes the parts. Light filters come in different designs and purposes.

Additionally, the shield can be equipped with a built-in respirator or a forced air supply device. These units are needed for work in closed, non-ventilated tanks, smoke-filled rooms and other difficult situations.

Forced air welder mask

Main types of masks for welders

The seemingly simple device has a number of modifications that differ in price, purpose and complexity.

Differences in the body

The cheapest welding mask is made from flame retardant-impregnated corrugated cardboard. It protects the face well, but gets wet in the rain, wrinkles and loses its shape from mechanical influences. The most popular material is plastic.

Of course, if you put it on a hot part, the polymer will melt. but it is quite suitable for protection against rolling splashes. More expensive shields are made of carbon fiber, very durable and lightweight.

A rare leather mask stands out separately - it has excellent characteristics, holds temperature well, and is convenient in confined spaces.

Differences in the headband

The cheapest head guards do not have a head guard. The welder holds the shield with one hand, which is inconvenient, but for periodic work it is quite suitable.

Cheap plastic tapes from which headbands for masks are made require modifications - the position of the body is not adjustable, the size of the head and the depth of its fit are not always set. The clamping screws, which regulate the throwing of the shield by turning the head, need to be constantly tightened - they are constantly loosened. If the flash is not removed, it can injure the skin, and when working for a long time, it is necessary to wear a hat under such a headband.

Source: https://svarkaprosto.ru/oborudovanie/kak-vybrat-masku-dlya-svarki

Welding shield

» Articles » Welding shield

The simplest welding shields were ordinary glass, equipped with strong shading. Today you can find a huge variety of protective equipment on sale that welders use:

• glasses;
• masks;
• helmets;
• chameleon type masks.

the function of such products is not only to neutralize radiation harmful to human vision and the surface of the skin, but also to bring the work process to maximum comfort.

Chameleon masks: features and benefits

A welding shield equipped with automatically darkening glass is quite expensive, but these are the products that allow you to achieve the best eye protection. Such glasses are capable of changing their color depending on the level of illumination.

Its positive characteristics include the following:

• The visual organs of a person working with welding receive instant and fairly high-quality protection.
• Automatic darkening does not interfere with the work at all; the quality of welding will not suffer from this.

This equipment is manufactured on the basis of layer technology. Essentially, this glass is made on the basis of liquid crystals, which form a special layer, and a film of polarizing materials is installed between them. When too bright radiation hits the surface of such glass, they change their direction. As a result, long-wave light radiation is blocked, which helps prevent burns to the cornea.

In addition to the brightest light, this type of glass does not allow ultraviolet or infrared radiation to reach the skin and eyes.

Types of protective masks

First of all, you should decide on the types of such products:

• The standard shield for welding is the most elementary design. It is made of fairly durable plastic, made from polymer materials that do not ignite when exposed to high temperatures. In the central part there is a window where tinted glass is placed. The design may have a special handle for holding it in front of the face. However, most modern devices are equipped with a head attachment.
• A mask equipped with a special lift-type filter. First of all, it does not have the disadvantages that a conventional design has. It is quite simple to use: you just need to lift the ordinary glass, under which there is special filtering equipment. It qualitatively protects the organs of vision from ultraviolet rays.
• A mask designed for special work. It is equipped with a filter system that allows you to remove harmful gases when carrying out work involving argon, helium, carbon dioxide or oxygen. In principle, this device is somewhat reminiscent of a gas mask. However, it has a certain drawback: the air filter must be changed from time to time.

What to look for when choosing a shield

The welding shield is a rather complex piece of equipment, the selection of which should be approached very carefully. In particular, when purchasing, you should consider a number of specific characteristics:

• optical class of the light filter installed in the mask. First of all, the mask should not distort the image, which will greatly affect the quality of the work performed;
• how quickly the light filter will turn on - this indicator affects the safety of work;
• amount of darkening - ideally, the glass at rest should be absolutely transparent, and when the arc is ignited, it should quickly darken so that only the welding arc and the weld pool are clearly visible.

If you choose the right welding helmet, it will allow you to carry out work most quickly and efficiently. Instant darkening will not allow the welder to be distracted from work if he has to use manual or automatic welding even in the most difficult conditions: when forming a vertical seam, working in strong winds, and so on.

Sergey Odintsov

electrod.biz

Welding helmets with chameleon glasses

Welding work must be carried out exclusively in special protection. The intensity of the light radiation is sufficient to cause serious eye burns. Protective equipment and devices appeared with the invention of the metal welding method.

Once upon a time these were the simplest tinted glasses; now, among the variety of products, you can choose glasses, shields, helmets and chameleon welding masks.

Their function is not only to neutralize welding light, but also to improve the convenience of work for the welder. This is especially true when operating welding inverters and semi-automatic machines.

Good eye and face protection comes with quality glass. The most modern of them are those that can darken in bright light.

The change in color is called chameleon, indicating the ability of glass, like that of this animal, to adapt to the surrounding light.

The chameleon differs from all other means of protection for the face and eyes, masks, helmets, as well as shields and glasses, by the presence of a liquid crystal filter that changes the degree of darkness automatically.

The visible part of the filter, securely mounted in the mask, has the ability to transform the level of darkness as soon as the welding process begins.

Main advantages:

• The worker's eyes instantly receive powerful protection.
• Dimming does not in any way affect the ability to see well and effectively control the process.

If there is a leak in the water supply or heating pipes, cold welding will help fix it. Find out what cold metal welding is and how to use it at home.

For high-quality welding work, it is important to strictly adhere to the technology. This article describes how to work with a semi-automatic welding machine quickly and efficiently.

Design

The light filter is made using the principle of puff pastry. Liquid crystals form each individual layer, and a polarizing film is placed between the layers.

When an external influence occurs on the crystals, they are installed in a special direction, after which the entire filter blocks the light that enters it.

In addition to blocking light exposure, the chameleon is able to neutralize ultraviolet and infrared radiation. This is due to the presence of an additional layer of protection that can reflect UV and IR rays.

The rate at which the glass darkens may vary depending on the model. There are glasses that begin to darken only a few seconds after the start of welding. And then, even while wearing a protective mask or glasses, a person can get a burn to the cornea of ​​the eye.

Chameleon glass mask for welding

For a worker whose day is spent welding or cutting metal, protective equipment is like a second skin. One of the good options when choosing it is a chameleon welder mask. It is necessary that it is not heavy, is comfortable to put on and take off, and also has all the protective properties.

Source: https://samsvar.ru/stati/svarochnyj-cshitok.html

Marking of filters for welding helmets

Are you here

Carrying out welding work leads to the appearance of light radiation from the arc, splashes when the metal is highly heated, and sparks.

That is why the face and eyes of the person who performs such work must be closed. As a rule, welding shields and masks are used as protection, which differ from each other in their design features.

How to choose a welding helmet to provide the best protection while doing your job?

Features of choice

The welding helmet consists of a filter and a mask. It is often sold assembled, however, you can find these elements sold separately. When purchasing elements separately, you should know how to choose glass for a welding helmet and what selection criteria exist.

The means of protection in question is regulated by GOST 12.4.035-78. When manufacturing the body of the structure itself, a non-conducting material must be used that is impervious to sparks and splashes of hot material. On the market you can find domestic and imported versions made of plastic or fiber.

The most important indicators of the mask are the following:

• Dimensions and weight.
• The degree of adjustment of the headband size, mask angle and seating depth.

In some cases, you may find it possible to adjust the distance between the face and the filter. When choosing, you should also determine the reliability of the control elements, since their loosening during operation can lead to the mask falling off.

Light filters can be made of polycarbonate and plexiglass. Many designs are rectangular in shape. In order to protect your eyes from the negative effects of not only bright radiation, but also the UV and IR spectrum, you should know how to choose the right welding mask.

Types of welding helmets

In order to choose face protection, you should know what they are. They can be divided into the following categories:

• The version with a fixed filter is a standard face protection device that has become widespread. This design has a simple fastening system. In order to see the result of the work, such a mask is raised, and to continue welding work, it is lowered with a nod of the head. The advantages of this design option are free hand and simplicity of design. The disadvantage is that when the mask is raised, the eyes are not protected. From time to time, when welding, you have to knock off slag, and you will have to wear goggles or other protection to protect your eyes.

• Design with lifting filter. The peculiarity of this design is that when the filter is lifted, the eyes are protected by an additional plastic shield, and this allows for immediate work to remove slag. Choosing this type of welding helmet will provide the best protection.
• “Chameleon” is the most popular welding helmet today. Their peculiarity lies in the type of filter used.
• Masks that are capable of filtering and supplying air. They are used for welding work in difficult conditions: when toxic metals are released, in the absence of a sufficient degree of filtration. These designs are a bit like gas masks, as they have a filtration and air supply system. Some masks, due to their design features, are suitable for working underwater.

In order to decide which welding helmet to choose from the above, you should decide what type of welding work will be performed. The specifics and scope of work may also influence the choice. For example, TIG welding, due to its characteristics, determines the required degree of darkening.

The frequently used indicator of current strength during work is also a selection criterion. In the case of MMA welding, a standard mask is suitable. If the amount of work is small, then you can use a special welding shield.

Selecting a filter for a welding helmet

The size of the light filtering element used, as well as the degree of darkness, may vary. The features of the filter may be affected by the following:

• Design features of the mask.
• Some features of the welding carried out.

how to choose a welding helmet

We can highlight the standard sizes of this element – ​​110x90, 102x52, 121x69 millimeters. The correct choice of a light filter for a welding mask will significantly increase the field of view. However, in this case, it is worth remembering that an increase in the filter area leads to an increase in fragility. Strong mechanical impact during work may damage the filter.

Source: https://steelfactoryrus.com/markirovka-svetofiltrov-dlya-svarochnyh-masok/

Glass for a welding helmet - what you need to know, how to choose?

Welder safety is the first thing you should take care of when starting work. Most of the protection is provided by glass, through which the master looks at the work area. There should be no damage, scratches or even cracks on it. If the viewing window is defective, it should be replaced as soon as possible.

https://www.youtube.com/watch?v=_TyCUDMXCpI

In most cases, protective glasses for welding helmets have the same properties and dimensions. The only exceptions are complex models of shields, which require special glass to be installed.

Mask glass parameters

Welding glasses can be characterized by four main characteristics. They affect image quality, darkness, etc. According to modern standards, product parameters are indicated on the outside of the mask. They are presented as 4 digits separated by a fraction. These are numbers from 1 to 3. One means the highest indicator.

1. Optical class. This parameter is responsible for image quality. Here the role is played by the material from which the glass is made and the film glued on top of it. If the parameter is marked with one, then everything is clearly visible through the glass. If it is a two, then there are distortions. If it is a three, then the glass is completely unclear.
2. Scattering of light. This parameter is very important for masks with the “Chameleon” filter. It shows the quality of the liquid crystals used in the filter. If it is marked “1”, then the mask will have a clear picture, if “2” means there will be distortions, and if “3” means the image will be cloudy.
3. Homogeneity. This indicator is responsible for the uniformity of glass darkening and what differences can occur in different areas of the viewing window. This effect can be seen especially clearly when an arc occurs. So, “1” means that the maximum difference will be no more than 0.1 DIN, “2” - 0.2 DIN, “3” - 0.3 DIN.
4. Dependence of darkening on angle. The parameter shows the dependence of the filter darkening on the angle of incidence of the flash. If it is equal to one, then the dependence is minimal. The maximum dependence is indicated by three.

Thus, before you buy a mask, you should pay attention to the parameters indicated on it. Of course, it is best to choose a shield that has the best performance. This will ensure a clear image and maximum eye protection.

Glass sizes and material of manufacture

Most masks have a standard glass size - 110x90 mm, but sometimes there are non-standard sizes. Make sure that such masks come with spare glasses, then you won’t have to look for a non-standard element, which can be very problematic.

Welding helmets use polycarbonate glass. They have increased strength and can withstand high temperatures. Polycarbonate differs from ordinary glass in that it is less fragile and more resistant to various influences, including mechanical ones.

How to choose glass for a mask?

If it happens that you need to purchase new glass for your shield, you need to carefully consider its choice. There are many options available on the market now. They have different parameters. The very first thing you should pay attention to is the size of the glass. It may happen that it will be larger or, on the contrary, smaller than necessary, and will not fit the mask.

After this, you need to decide what type of glass you need - simple or chameleon. Depending on the type, the price will vary. “Chameleon” is more expensive because it has more complex technology and better protects the eyes. Simple tinted glass is not very convenient to use, because you have to ignite the arc while turning away, and constantly change it for different types of work.

With the “chameleon” you will have a clear view of the work area and will not have to constantly lift the mask to look at the seam.

The main parameter of “Chameleon” is the filter response time. Depending on the model, it can vary greatly. The maximum response speed is 33 thousandths of a second. This is quite a lot; professional filters work at a speed of 0.0001 s. and faster. The faster the glass darkens, the better the welder's vision is protected. This parameter is temperature dependent. Sensors may work slower in cold weather.

The best choice of glass is “chameleon”. You can do any type of work with it and your hands will remain free. The average dimming parameter for such glass in its normal state is 4 DIN. In working condition it should be 9 - 13 DIN. Some glasses cannot provide such shading, which is why they cannot be used when working with thick electrodes and powerful welding.

Also pay attention to the power sources of the glass. It is best if it has two autonomous sources. As a rule, this is a solar battery and lithium batteries.

Conclusion

The choice of glass for a welding helmet should be made based on your needs and type of work. Almost all masks use a standard glass size. The remaining parameters are selected at your discretion and need. The higher quality the glass and its filter, the more expensive the glass will cost you and the better your eyes will be protected.

Source: http://instrument-blog.ru/svarka/steklo-dlya-svarochnoj-maski-chto-nuzhno-znat-kak-vybrat.html