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Effect of black glass on welding mask on welder and welding
Sep 03, 2018

Welding is one of the important assembly processes and is decisive for product quality. In industrialized countries, the amount of steel for welding has reached 60% to 70% of the total steel. In recent years, China's welding materials industry has maintained rapid development and has become the country with the largest output of welding materials.

As an important welding protection tool, the welding mask helps the welding operator to protect against arcing damage.

Welding masks can be divided into three types: hand-held, combined and head-mounted; welding masks can be divided into traditional welding masks (also known as black glass welding masks) and automatic dimming welding masks according to their working principles.

In the arc welding process, strong light, ultraviolet light (divided into UVA, UVB, UVC depending on the wavelength) and infrared radiation are generated. The radiation poses a direct threat to the welding operator's eyes and skin; strong visible light may cause short-term blindness and even vision. Decreased; infrared radiation can cause cataracts; ultraviolet rays can cause damage to the cornea and lens of the eye, leading to blindness and cataracts.

UVA may also cause dermatitis, which may cause skin cancer; Anthony Dixon's research shows that even for welding aids who occasionally come into contact with arc welding, skin cancer can be caused without proper protective measures; infrared radiation can also accelerate The aging process of the skin.

The intensity of ultraviolet radiation during arc ignition will be higher, such as manual welding up to 8000 ~ 10000 mW / m2, CO2 gas shielded welding up to 30,000 ~ 40,000 mW / m2, argon arc welding can reach up to 150,000 ~ 200,000 mW / m2 . Under such high-intensity irradiation, the welding operator will suffer serious occupational injuries even if it is not exposed for a short period of time.

Occasional mismatches or other welding operations can cause the welder to be exposed to very high levels of infrared, ultraviolet and glare for a short period of time. For long-term welding, the eyes and skin will be seriously injured.

A good black glass plays a vital role in the welder's eyes.








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