Welding is a well established manufacturing process used in many industries. However, there are several potential hazards associated with it. The safety hazards associated with arc welding involve arc radiation, air contamination, electric shock, fire, and explosion of compressed gases. The sparks generated by many welding processes are very hazardous to eyes and face of the operator. Thus, to ensure maximum safety for the welder, a welding helmet is unavoidable.
There are two types of welding helmets that welders use. One is battery-powered; the other is solar powered. Solar power is more convenient and efficient when working outside, but work deep inside of large structures, or even underground, will require battery-powered helmets. Both employ sensors to know when the light brightens, and when it is time to adjust the special glass in the face shield to block just the right amount of light. Deluxe auto darkening helmets have a sensor built into their design that “understands” the difference between the operator’s arc and a coworker’s arc. For private individuals working by themselves, it makes little difference, if any, if the helmet has an auto-darkening sensor like this. For a company it is important to know how do welding helmets work . It also good idea to invest in high-end auto darkening welding helmets http://weldingdesign.com/ equipment-amp-automation/welding-helmets-what-you-need-know-you-buy to have a sensor for secondary arc light.
Helmet is the primary precaution gear for a welding machine operator.Auto darkening is a feature that allows the operator to view and prepare the work piece through a lens that reacts instantly to the arc and darkens to a selected shade level. Some of the designs in this category offer a viewing area that is 30% larger than conventional helmets. These helmets also shield the eyes against harmful UV and infrared rays. Some modern helmets also feature a replaceable battery or a solar assisted lens technology.
The helmets have a comfortable and well-balanced design with an improvised ratchet-style headgear that provides more control and an exclusive comfort cushion to reduce fatigue. In addition, these helmets are four ounces lighter than the conventional ones.The helmets even feature industry-leading integrated graphics and adjustable controls such as 9-13 shade control, lens sensitivity, and delays. Moreover, the helmets are also outfitted with auto-off circuitry at 15-20 minutes, and a low battery indicator.
Some helmets are exclusively outfitted with a rubber gasket, which provides excellent lens protection and can be changed easily. In addition, most models have an excellent magnifying holding lens system that allows vertical adjustments.
Helmets are certainly very crucial during the process of welding as the process produces a great amount of UV rays and radiation. These equipment not only protect the eyes from the harmful radiation exposure but also act as a shield against flying debris. By instantly responding to light, these helmets auto darken when the welder strikes the arc and stops when the welder shuts off the arc. High end auto darkening helmets have a sensor built into their design that understands the difference between the operator’s arc and a coworker’s arc. For industries, it is best to invest in high-end auto darkening welding helmets to have a sensor for secondary arc light.