Eyeglass frame and face should be consistent to avoid side leakage

There are many types of eye and face protection products. According to the protection function, they can be divided into nine categories: dustproof, waterproof, shockproof, anti-high temperature, anti-electromagnetic radiation, anti-radiation, anti-chemical splash, sand-proof, anti-glare.

(I) Use of welding glasses and masks

According to statistics, electro-optic ophthalmia in the welding operation of industrial and mining enterprises is more common, the main reason is that the selection of protective glasses is not appropriate. Therefore, the relevant operators should master the following basic methods for using protective glasses:

(1) The used glasses and masks must be examined by relevant departments.

(2) Select and wear suitable glasses and masks to prevent them from falling off and shaking during operation and affect the use results.

(3) The frame of the eyeglasses should be in line with the face to avoid light leakage from the side. Use eye protection or side-lighting glasses when necessary

(4) Prevent masks and glasses from being exposed to moisture and pressure so as to avoid deformation damage or light leakage. Welding masks should be insulated to prevent electric shock.

(5) When using mask-type goggles, replace the protective sheet at least once every 8 hours. When the filter of the protective glasses is damaged by the spatter, it must be replaced promptly.

(6) When the protective sheet and filter are used in combination, the refractive power of the lens must be the same.

(7) For air-fed, welding masks with dust and gas masks, maintenance and use should be strictly in accordance with relevant regulations.

(8) When the lens of the mask is covered with damp smoke from the working environment and the moisture exhaled by the operator, causing it to appear water mist, affecting operation, the following measures can be taken to solve:

1 water film diffusion method. Apply fatty acid or silicone anti-fogging agent on the lens to evenly spread water mist.

2 water absorption method. A surfactant (PC resin) was dip-coated on the lens and the adhered water mist was absorbed.

3 vacuum method. For some masks with a double glass window structure, a vacuum may be used between the two glass layers.

(B) The use of anti-electromagnetic radiation eyewear

Electromagnetic radiation is invisible, inaudible and intangible. However, some frequencies of microwaves produce a warm feeling. There is a long incubation period when exposed to radiation until a part of the body is found uncomfortable. When found, it often has caused bad consequences. Therefore, protection against electromagnetic radiation cannot be taken lightly.

(1) First determine the area where the radiation intensity exceeds the maximum allowable radiation of the microwave at the work site and hang the warning sign. When workers enter the area, they must wear shields and anti-microwave glasses.

(2) In practical work, shielding suits and glasses should be selected based on the operating frequency of the radiation source and the radiation intensity of the working site.

(3) Use anti-microwave glasses with eye protection as much as possible to prevent microwave diffraction from affecting the eyes.

(4) Avoid contact with grease, acid and alkali or other contaminants during use to avoid affecting the shielding effect.

(5) In addition to the above, take measures not directly looking at any radiating devices (feeding horns, open waveguides, reflectors), keeping them as far away from the radiation source as possible, and shielding the field source, and it can also effectively avoid electromagnetic radiation.

China Labor Insurance Network